Hello community,

I installed Ubuntu onto my laptop, but when I tried to boot windows 10 I was unable to do so. Then I tried to fix things myself by using testdisk, but I then accidentally made Ubuntu boot with regards to the same partition that my windows was booting from. I now do not have access to both and I've had to use a USB for temporary access to Ubuntu. I then used the boot repair program and got the link after the analyses was over. I'm not sure if the paste2 link that I received from boor-repair has too much information to share online, so if someone can also help me with being selective of what information is fine to post. May I please receive assistance in correcting the errors made. My priority would be to boot windows 10 and if possible I would like to have dual capability with Ubuntu. I am a beginner so I am not too knowledgeable with the correct terminology, but i am trying. Thank you in advance for your time and assistance.

Sincerely,
Vergal3

Hi,

I'm getting the following message when ssh-ing into a headless 14.04.5 powerpc-smp (32-bit) on G4 hardware:

"WARNING: Security updates for your current Hardware Enablement Stack ended on 2016-08-04"

The unsupported kernel is 4.2.0-42-powerpc-smp ppc

After some investigation, I've learned that I need to upgrade to a 4.4x kernel for continuing HWE support through 2019.

A candidate, linux-image-4.4.0-64-powerpc-smp is available. Will installing this satisfy the HWE requirement going forward?

Will it pull through dependencies, or do I need to also install linux-headers-4.4.0-64 and linux-headers-4.4.0-64-powerpc-smp?

Any reason to suppose doing this would break my server?

Thanks for any advice!

Hello,

i can not install 16.04 and 16.10 on my Rig. The System is Supermicro X9Dai with Bios 3.2 in UEFI Mode, 96GB Ram, Two Sandy Bridge E5-2670 in Hyperthread Mode. I tried also to reduce the cores to 1 or 2 in Bios.

I prepared the Boot USB Stick with Rufus:
1. Downloaded the ISO
2. Used GPT for UEFI
3. Used Fat32 as File System
4. Wrote the IOS in ISO Mode, not DD.

The System Boots from the USB Stick until I get a Kernel Panic (I get a Kernel Panic with Fedora too).
Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: fffffsomeaddress

I attach the Call Trace as attachment.

I did not find anything comparable with google.IMG_1266.jpgIMG_1267.jpg

Thanks for help,

Michael

Attached Images

• IMG_1266.jpg (87.9 KB)
• IMG_1267.jpg (74.9 KB)

how to upgrade 16.04 to 16.04.2 without boot error.

I'm trying to install lunbuntu 16.10 32bit version on HP pavilion 525W

Current OS: Windows XP Pro 32 bit
pentium 4 2.4ghz
1GB RAM
100GB HDD
8MB (that's megabytes) graphics memory

I burned the iso onto a CD then I was presented with the main menu when I booted from the CD. After I choose to install lubuntu, the lubuntu logo appears and hangs for a long time and then I am presented with the following error message. Something about unexpected child device config size... does the computer not have the required minimum hardware requirements or it is not compatible for lubuntu? Can i install puppy linux on this computer? Thanks for the help.

If I install Ubuntu with LUKS, asking it to encrypt the entire drive, I can get it to boot properly (after adding startup.nsh and setting nosplash in Grub).

However, when I use manual partitioning so that the installer doesn't overwrite specific partitions, I cannot get the boot sequence to prompt for the LUKS password. Instead, after a minute or so, the boot falls into initramfs (whatever that is :().

My test setup is similar to the default whole-disk encryption:

• /dev/sda1 EFI System Partition
• /dev/sda2 Boot partition
• /dev/sda3 Unused space
• /dev/sda4 LUKS partition containing an LVM group, which contains a swap partition and a root partition.

All partitions start off empty, so that the installer can format and fill them as needed.

I ran the installer. I don't know where to place the bootloader, so I've tried both /dev/sda and the default /dev/dm-0 (which points to the encrypted, unlocked partition sda4_crypt).

Once I have added startup.nsh (bug #1665329) and fixed Grub (another bug), I can boot into the system as far as the Grub prompt.

Then, after I select Ubuntu, it sits for about a minute before dropping into a prompt for initramfs, something about which I know nothing. (Using the installer's default whole-disk encryption does not have this problem.)

Do you have any idea what I can do to fix this so that I can enter the LUKS password and continue to boot?

More information:

• Installing in VirtualBox
• Using Ubuntu 16.10 64-bit

I am trying to install Ubuntu 16.04.1 onto a laptop with an existing Windows 10 Home installation, intending to dual boot, and am getting the message "This computer currently has no detected operating systems" during the installation. I've set the Boot Mode in the BIOS to Legacy, if that makes any difference.

I see the recommended solution seems to be https://ubuntuforums.org/showthread....8#post12486498 , but in there it says quite clearly that if I see a nice Ubuntu graphical screen when booting I should "stop!!!". Okay, so I've stopped. Where should I go from here?

I've tried the "something else" option in the "Installation Type" screen, and got the following:

When I tried to use the 472596MB freespace area as ext4 and to "Install Now" it complained that "The partition table format in use on your disks normally requires you to create a separate partition for boot loader code. This partition should be marked for use as a "Reserved BIOS boot area" and should be at least 1MB in size. Note that this is not the same as a partition mounted on /boot." So I thought to myself, "Okay, I'll use that 1MB of free space right at the start then, and tried to set that as a "Reserved BIOS boot area". Uh uh. I immediately got an error message saying "Unable to satisfy all the constraints on the partition." Do what with a rubber hose? What constraints? How do I satisfy them? Help (please)!

Just purchased a new netbook with Windows 10 installed. I want to install Ubuntu 16.10 and really would prefer not to have to dual-boot. Is that even possible? If not, can I get a copy of say Windows 7 or earlier and wipe the HD and then install Ubuntu 16.10 without Windows? If so, how do I accomplish this?

Thanks,

-MD

Quite confused. Any input on fixing this will be greatly appreciated.

Hello to everybody,
I just upgrade the ubuntu server to 16.04lts (apt-get update apt-get upgrade do-release-upgrade). I made many times this operation into other servers without any problems, but this time I found one BIG problem. Googling doesn't helps me to find a solution. The problem is: SAMBA doesn't work (because it doesn't start...) I tried to uninstall it with "--purge autoremove" and install it again but I see some errors:
Initctl: unable to connect to Upstart: Failed to connect to socket /com/ubuntu/upstart: Connection refused
insserv: waring: script 'screen-cleanup' missing LSB tags and overrides
etc
I see the same errors when I uninstall SAMBA, also when I try to show the status of the service.
systemctl shows errors on smbd.service nmbd.service and winbind.service
For example "systemctl status smbd.service" shows: (I'm manually typing it....)
smbd.service - LSB: start Samba SMB/CIFS daemon (smbd)
Loaded: loaded (/etc/init.d/smbd; bad; vendor preset: enabled)
Active: failed (Result: exit-code) since ...
Process: xxxx ExecStart=/etc/init.d/smbd start (code=exited, status=1/FAILURE)
Starting LSB: start Samba SMB/CIFS daemon (smbd)....
* Starting SMB/CIFS daemon smbd
....fail
smbd.service: Control process exited, code=exited, status=1
Failed to Start LSB: start Samba SMB/CIFS daemon (smbd)
journalctl -xe shows also:
smbd.service: Unit entered failed state
smbd.service: Failed with result 'exit-code'

Are there somebody that can helps me please to find a solution?
Thanks, really many thanks in advance.
Ciao!

I currently flash Windows to new machines at my work with a USB thumb drive running Ubuntu. The drive runs live with a persistent partition that contains a .IMG file that gets DD'd to the actual hard drive of the target machine. All works off a little script I put together. I can even set things up to pull an alternative .IMG from across the network.

Which got me thinking...

Can I set up a PXE server to boot my custom Ubuntu+script over the network to the client PC? Eliminating the thumb drive altogether? For that matter, can a PXE server use a .IMG and just write it directly to the client hard drive?

If I can just set the client machine to network boot and everything just runs from there that would be fantastic.

I after installing a clean install to 16.04.2 all was well. Then I I got the message that some updates had come in after the release do I wish to install? I said yes and installed the updates.

Now whenever I BOOT the computer it starts a rapid beep and f12 appears and I have to add the boot order in. So I did another clean install and the same thing happens on boot or re-start.

How to fix? Dell optiplex computer. Now I find if I hit enter the beeping stops and it loads.

Well golleeee... after a morning of trying to solve this I noticed I had a stuck key. End of problem.

I am unable to get `sudo apt-get upgrade` to complete on Ubuntu 16.04.

Any thoughts or anyone else seeing this? Killing and restarting does not help

Hello,

I installed Ubuntu 16.04.2 on my XMG C405 with GTX 965m.

When I try to install any Nvidia drivers the installation stops at about 95%. I cannot abort this. Rebooting does not "repair" this problem. E.g. when I want to install any other software I get this error:
I tried to install the drivers directly after Ubuntu installation via "Additional Drivers utility" and after reinstalling Ubuntu with:
and then "Additional Drivers utility"

Tried it now for 10 times without success...

Does someone has an idea where the problem could be?

Thanks for your help!

Hi,

I'm trying to install/configure the Canonical Livepatch service on one of my servers, however whenever I try to run the livepatch service, I get the following error from the service startup logs:

My problem is that the server is running version 16.04.02:

Is this limitation on purpose? It seems to me that a minor version upgrade should be supported as well, or is this not the case?

hello,

my ubuntu box just ran out of diskspace so i had to do some cleanup and i just noticed that i have multiple mkinitramfs_* files in my /var/tmp folder. I thought i suppose to have only 1 whenever i run the kernel update. I did check my installed kernel and i have only 1. If these come from failed kernel installation how do i remove them?

multipleInitramd.PNG
Thanks in advance

Attached Images

• multipleInitramd.PNG (13.9 KB)

Hey guys, this cry out for help comes after much searching online and trial \ error testing. (Error being the predominant result for me) ... I'd like to point out to start that I am not a Linux guru (far from) but have used Debian for some years and am quite familiar with the basics ...

So, why am I pulling my hair out and begging here for a little assistance?

Well I've brought a new laptop. It is a Asus Zenbook i7 Intel chipset UX360UAK <Model

At first I wanted to stick with Debian but the install of Jessie 8 failed miserably with no mouse pad working and WiFi off and screen resolution a mess. So I abandoned that.

Upon research I found that I should be using mint or ubuntu (as others had successfully used these on this machine) so off I went and got the latest Ubuntu on a USB live stick.

The live stick boots perfectly and its a great user experience. So I wiped the 512GB SSD internal drive using "disks" with an ext4 format. Then proceeded to install from the live USB.

The install seems successful, and I apply encryption during the install. (Although upon the following issues I have tried without the encryption too, to no avail)

After the install, the laptop reboots and just hangs on the loading front page where I enter the key. I get a message "cryptsetup: sda3 set up successfully"

But that's it, no further... I'm pulling my hair out... So I started a live session again and ran boot-repair from ppa:yannubuntu\boot-repair

This following mess is my output... (It still didn't solve anything)

I hope someone here can point me in the right direction. I would REALLLLLLLY appreciate any help :(

Thanks in advance guys
Boot Info Script cfd9efe + Boot-Repair extra info [Boot-Info 26Apr2016]


============================= Boot Info Summary: ===============================

=> Grub2 (v2.00) is installed in the MBR of /dev/sda and looks at sector 1 of
the same hard drive for core.img. core.img is at this location and looks
for (,msdos1)/grub. It also embeds following components:

modules
---------------------------------------------------------------------------
fshelp ext2 part_msdos biosdisk
---------------------------------------------------------------------------
=> No known boot loader is installed in the MBR of /dev/sdb.

sda1: __________________________________________________ ________________________

File system: ext2
Boot sector type: -
Boot sector info:
Operating System:
Boot files: /grub/grub.cfg /grub/i386-pc/core.img

sda2: __________________________________________________ ________________________

File system: Extended Partition
Boot sector type: -
Boot sector info:

sda5: __________________________________________________ ________________________

File system: crypto_LUKS
Boot sector type: Unknown
Boot sector info:

sdb1: __________________________________________________ ________________________

File system: iso9660
Boot sector type: Unknown
Boot sector info:
Mounting failed: mount: /dev/sdb1 is already mounted or /mnt/BootInfo/sdb1 busy

sdb2: __________________________________________________ ________________________

File system: vfat
Boot sector type: FAT16
Boot sector info: According to the info in the boot sector, sdb2 starts
at sector 0. But according to the info from fdisk,
sdb2 starts at sector 14432. According to the info in
the boot sector, sdb2 has 0 sectors.
Mounting failed: mount: /dev/sdb1 is already mounted or /mnt/BootInfo/sdb1 busy
mount: /dev/sdb2 is already mounted or /mnt/BootInfo/sdb2 busy

============================ Drive/Partition Info: =============================

Drive: sda __________________________________________________ ___________________
Disk /dev/sda: 477 GiB, 512110190592 bytes, 1000215216 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos

Partition Boot Start Sector End Sector # of Sectors Id System

/dev/sda1 * 2,048 999,423 997,376 83 Linux
/dev/sda2 1,001,470 1,000,214,527 999,213,058 5 Extended
/dev/sda5 1,001,472 1,000,214,527 999,213,056 83 Linux


Drive: sdb __________________________________________________ ___________________
Disk /dev/sdb: 14.6 GiB, 15610576896 bytes, 30489408 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos

Partition Boot Start Sector End Sector # of Sectors Id System

/dev/sdb1 * 0 3,035,519 3,035,520 0 Empty
/dev/sdb2 14,432 19,295 4,864 ef EFI (FAT-12/16/32)

/dev/sdb1 overlaps with /dev/sdb2

GUID Partition Table detected, but does not seem to be used.

Partition Attrs Start Sector End Sector # of Sectors System
/dev/sdb1 + R 0 3,035,463 3,035,464 Data partition (Windows/Linux)
/dev/sdb2 + R 14,432 19,295 4,864 Data partition (Windows/Linux)

Attributes: R=Required, N=No Block IO, B=Legacy BIOS Bootable, +=More bits set

"blkid" output: __________________________________________________ ______________

Device UUID TYPE LABEL

/dev/loop0 squashfs
/dev/sda1 3f81bc56-9c80-4fe4-bd85-707246ed409a ext2
/dev/sda5 48ac72cd-2e96-40de-a67b-c63de76bcfa6 crypto_LUKS
/dev/sdb1 2017-02-15-21-44-13-00 iso9660 Ubuntu 16.04.2 LTS amd64
/dev/sdb2 E561-C446 vfat

========================= "ls -l /dev/disk/by-id" output: ======================

total 0
lrwxrwxrwx 1 root root 9 Feb 24 00:43 ata-MTFDDAV512TBN_162613EA43BC -> ../../sda
lrwxrwxrwx 1 root root 10 Feb 24 00:43 ata-MTFDDAV512TBN_162613EA43BC-part1 -> ../../sda1
lrwxrwxrwx 1 root root 10 Feb 24 00:43 ata-MTFDDAV512TBN_162613EA43BC-part2 -> ../../sda2
lrwxrwxrwx 1 root root 10 Feb 24 00:43 ata-MTFDDAV512TBN_162613EA43BC-part5 -> ../../sda5
lrwxrwxrwx 1 root root 9 Feb 24 00:44 usb-Kingston_DataTraveler_2.0_C86000BDB9EAEE609A2F0154-0:0 -> ../../sdb
lrwxrwxrwx 1 root root 10 Feb 24 00:44 usb-Kingston_DataTraveler_2.0_C86000BDB9EAEE609A2F0154-0:0-part1 -> ../../sdb1
lrwxrwxrwx 1 root root 10 Feb 24 00:44 usb-Kingston_DataTraveler_2.0_C86000BDB9EAEE609A2F0154-0:0-part2 -> ../../sdb2
lrwxrwxrwx 1 root root 9 Feb 24 00:43 wwn-0x500a075113ea43bc -> ../../sda
lrwxrwxrwx 1 root root 10 Feb 24 00:43 wwn-0x500a075113ea43bc-part1 -> ../../sda1
lrwxrwxrwx 1 root root 10 Feb 24 00:43 wwn-0x500a075113ea43bc-part2 -> ../../sda2
lrwxrwxrwx 1 root root 10 Feb 24 00:43 wwn-0x500a075113ea43bc-part5 -> ../../sda5

================================ Mount points: =================================

Device Mount_Point Type Options

/dev/loop0 /rofs squashfs (ro,noatime)
/dev/sdb /cdrom iso9660 (ro,noatime)


============================= sda1/grub/grub.cfg: ==============================

--------------------------------------------------------------------------------
#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#

### BEGIN /etc/grub.d/00_header ###
if [ -s $prefix/grubenv ]; then
set have_grubenv=true
load_env
fi
if [ "${next_entry}" ] ; then
set default="${next_entry}"
set next_entry=
save_env next_entry
set boot_once=true
else
set default="0"
fi

if [ x"${feature_menuentry_id}" = xy ]; then
menuentry_id_option="--id"
else
menuentry_id_option=""
fi

export menuentry_id_option

if [ "${prev_saved_entry}" ]; then
set saved_entry="${prev_saved_entry}"
save_env saved_entry
set prev_saved_entry=
save_env prev_saved_entry
set boot_once=true
fi

function savedefault {
if [ -z "${boot_once}" ]; then
saved_entry="${chosen}"
save_env saved_entry
fi
}
function recordfail {
set recordfail=1
if [ -n "${have_grubenv}" ]; then if [ -z "${boot_once}" ]; then save_env recordfail; fi; fi
}
function load_video {
if [ x$feature_all_video_module = xy ]; then
insmod all_video
else
insmod efi_gop
insmod efi_uga
insmod ieee1275_fb
insmod vbe
insmod vga
insmod video_bochs
insmod video_cirrus
fi
}

if [ x$feature_default_font_path = xy ] ; then
font=unicode
else
insmod part_msdos
insmod ext2
set root='hd0,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 3f81bc56-9c80-4fe4-bd85-707246ed409a
else
search --no-floppy --fs-uuid --set=root 3f81bc56-9c80-4fe4-bd85-707246ed409a
fi
font="/grub/unicode.pf2"
fi

if loadfont $font ; then
set gfxmode=auto
load_video
insmod gfxterm
set locale_dir=$prefix/locale
set lang=en_US
insmod gettext
fi
terminal_output gfxterm
if [ "${recordfail}" = 1 ] ; then
set timeout=30
else
if [ x$feature_timeout_style = xy ] ; then
set timeout_style=hidden
set timeout=0
# Fallback hidden-timeout code in case the timeout_style feature is
# unavailable.
elif sleep --interruptible 0 ; then
set timeout=0
fi
fi
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/05_debian_theme ###
set menu_color_normal=white/black
set menu_color_highlight=black/light-gray
if background_color 44,0,30,0; then
clear
fi
### END /etc/grub.d/05_debian_theme ###

### BEGIN /etc/grub.d/10_linux ###
function gfxmode {
set gfxpayload="${1}"
if [ "${1}" = "keep" ]; then
set vt_handoff=vt.handoff=7
else
set vt_handoff=
fi
}
if [ "${recordfail}" != 1 ]; then
if [ -e ${prefix}/gfxblacklist.txt ]; then
if hwmatch ${prefix}/gfxblacklist.txt 3; then
if [ ${match} = 0 ]; then
set linux_gfx_mode=keep
else
set linux_gfx_mode=text
fi
else
set linux_gfx_mode=text
fi
else
set linux_gfx_mode=keep
fi
else
set linux_gfx_mode=text
fi
export linux_gfx_mode
menuentry 'Ubuntu' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-e33f0a27-997b-4dcd-b36c-514fbe1f456d' {
recordfail
load_video
gfxmode $linux_gfx_mode
insmod gzio
if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
insmod part_msdos
insmod ext2
set root='hd0,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 3f81bc56-9c80-4fe4-bd85-707246ed409a
else
search --no-floppy --fs-uuid --set=root 3f81bc56-9c80-4fe4-bd85-707246ed409a
fi
linux /vmlinuz-4.8.0-36-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash $vt_handoff
initrd /initrd.img-4.8.0-36-generic
}
submenu 'Advanced options for Ubuntu' $menuentry_id_option 'gnulinux-advanced-e33f0a27-997b-4dcd-b36c-514fbe1f456d' {
menuentry 'Ubuntu, with Linux 4.8.0-36-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.8.0-36-generic-advanced-e33f0a27-997b-4dcd-b36c-514fbe1f456d' {
recordfail
load_video
gfxmode $linux_gfx_mode
insmod gzio
if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
insmod part_msdos
insmod ext2
set root='hd0,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 3f81bc56-9c80-4fe4-bd85-707246ed409a
else
search --no-floppy --fs-uuid --set=root 3f81bc56-9c80-4fe4-bd85-707246ed409a
fi
echo 'Loading Linux 4.8.0-36-generic ...'
linux /vmlinuz-4.8.0-36-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash $vt_handoff
echo 'Loading initial ramdisk ...'
initrd /initrd.img-4.8.0-36-generic
}
menuentry 'Ubuntu, with Linux 4.8.0-36-generic (upstart)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.8.0-36-generic-init-upstart-e33f0a27-997b-4dcd-b36c-514fbe1f456d' {
recordfail
load_video
gfxmode $linux_gfx_mode
insmod gzio
if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
insmod part_msdos
insmod ext2
set root='hd0,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 3f81bc56-9c80-4fe4-bd85-707246ed409a
else
search --no-floppy --fs-uuid --set=root 3f81bc56-9c80-4fe4-bd85-707246ed409a
fi
echo 'Loading Linux 4.8.0-36-generic ...'
linux /vmlinuz-4.8.0-36-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash $vt_handoff init=/sbin/upstart
echo 'Loading initial ramdisk ...'
initrd /initrd.img-4.8.0-36-generic
}
menuentry 'Ubuntu, with Linux 4.8.0-36-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.8.0-36-generic-recovery-e33f0a27-997b-4dcd-b36c-514fbe1f456d' {
recordfail
load_video
insmod gzio
if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
insmod part_msdos
insmod ext2
set root='hd0,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 3f81bc56-9c80-4fe4-bd85-707246ed409a
else
search --no-floppy --fs-uuid --set=root 3f81bc56-9c80-4fe4-bd85-707246ed409a
fi
echo 'Loading Linux 4.8.0-36-generic ...'
linux /vmlinuz-4.8.0-36-generic root=/dev/mapper/ubuntu--vg-root ro recovery nomodeset
echo 'Loading initial ramdisk ...'
initrd /initrd.img-4.8.0-36-generic
}
}

### END /etc/grub.d/10_linux ###

### BEGIN /etc/grub.d/20_linux_xen ###

### END /etc/grub.d/20_linux_xen ###

### BEGIN /etc/grub.d/20_memtest86+ ###
### END /etc/grub.d/20_memtest86+ ###

### BEGIN /etc/grub.d/30_os-prober ###
### END /etc/grub.d/30_os-prober ###

### BEGIN /etc/grub.d/30_uefi-firmware ###
menuentry 'System setup' $menuentry_id_option 'uefi-firmware' {
fwsetup
}
### END /etc/grub.d/30_uefi-firmware ###

### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries. Simply type the
# menu entries you want to add after this comment. Be careful not to change
# the 'exec tail' line above.
### END /etc/grub.d/40_custom ###

### BEGIN /etc/grub.d/41_custom ###
if [ -f ${config_directory}/custom.cfg ]; then
source ${config_directory}/custom.cfg
elif [ -z "${config_directory}" -a -f $prefix/custom.cfg ]; then
source $prefix/custom.cfg;
fi
### END /etc/grub.d/41_custom ###
--------------------------------------------------------------------------------

=================== sda1: Location of files loaded by Grub: ====================

GiB - GB File Fragment(s)

0.005342484 = 0.005736448 grub/grub.cfg 7
0.180962563 = 0.194307072 grub/i386-pc/core.img 2
0.066367149 = 0.071261184 vmlinuz-4.8.0-36-generic 10
0.239776611 = 0.257458176 initrd.img-4.8.0-36-generic 15

======================== Unknown MBRs/Boot Sectors/etc: ========================

Unknown MBR on /dev/sdb

00000000 45 52 08 00 00 00 90 90 00 00 00 00 00 00 00 00 |ER..............|
00000010 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00000020 33 ed fa 8e d5 bc 00 7c fb fc 66 31 db 66 31 c9 |3......|..f1.f1.|
00000030 66 53 66 51 06 57 8e dd 8e c5 52 be 00 7c bf 00 |fSfQ.W....R..|..|
00000040 06 b9 00 01 f3 a5 ea 4b 06 00 00 52 b4 41 bb aa |.......K...R.A..|
00000050 55 31 c9 30 f6 f9 cd 13 72 16 81 fb 55 aa 75 10 |U1.0....r...U.u.|
00000060 83 e1 01 74 0b 66 c7 06 f1 06 b4 42 eb 15 eb 00 |...t.f.....B....|
00000070 5a 51 b4 08 cd 13 83 e1 3f 5b 51 0f b6 c6 40 50 |ZQ......?[Q...@P|
00000080 f7 e1 53 52 50 bb 00 7c b9 04 00 66 a1 b0 07 e8 |..SRP..|...f....|
00000090 44 00 0f 82 80 00 66 40 80 c7 02 e2 f2 66 81 3e |D.....f@.....f.>|
000000a0 40 7c fb c0 78 70 75 09 fa bc ec 7b ea 44 7c 00 |@|..xpu....{.D|.|
000000b0 00 e8 83 00 69 73 6f 6c 69 6e 75 78 2e 62 69 6e |....isolinux.bin|
000000c0 20 6d 69 73 73 69 6e 67 20 6f 72 20 63 6f 72 72 | missing or corr|
000000d0 75 70 74 2e 0d 0a 66 60 66 31 d2 66 03 06 f8 7b |upt...f`f1.f...{|
000000e0 66 13 16 fc 7b 66 52 66 50 06 53 6a 01 6a 10 89 |f...{fRfP.Sj.j..|
000000f0 e6 66 f7 36 e8 7b c0 e4 06 88 e1 88 c5 92 f6 36 |.f.6.{.........6|
00000100 ee 7b 88 c6 08 e1 41 b8 01 02 8a 16 f2 7b cd 13 |.{....A......{..|
00000110 8d 64 10 66 61 c3 e8 1e 00 4f 70 65 72 61 74 69 |.d.fa....Operati|
00000120 6e 67 20 73 79 73 74 65 6d 20 6c 6f 61 64 20 65 |ng system load e|
00000130 72 72 6f 72 2e 0d 0a 5e ac b4 0e 8a 3e 62 04 b3 |rror...^....>b..|
00000140 07 cd 10 3c 0a 75 f1 cd 18 f4 eb fd 00 00 00 00 |...<.u..........|
00000150 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00000160 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00000170 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00000180 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00000190 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
000001a0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
000001b0 58 03 00 00 00 00 00 00 3d 54 e2 15 00 00 80 00 |X.......=T......|
000001c0 01 00 00 5c e0 fb 00 00 00 00 80 51 2e 00 00 fe |...\.......Q....|
000001d0 ff ff ef fe ff ff 60 38 00 00 00 13 00 00 00 00 |......`8........|
000001e0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
000001f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 55 aa |..............U.|
00000200


/dev/sdb1: unknown GPT attributes
1000000000000001

/dev/sdb2: unknown GPT attributes
1000000000000001
Unknown BootLoader on sda5

00000000 4c 55 4b 53 ba be 00 01 61 65 73 00 00 00 00 00 |LUKS....aes.....|
00000010 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00000020 00 00 00 00 00 00 00 00 78 74 73 2d 70 6c 61 69 |........xts-plai|
00000030 6e 36 34 00 00 00 00 00 00 00 00 00 00 00 00 00 |n64.............|
00000040 00 00 00 00 00 00 00 00 73 68 61 32 35 36 00 00 |........sha256..|
00000050 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00000060 00 00 00 00 00 00 00 00 00 00 10 00 00 00 00 40 |...............@|
00000070 5f b0 98 49 82 d5 01 0d 9f d9 61 b6 aa 0c eb c7 |_..I......a.....|
00000080 60 6e b3 06 ac 37 d1 e7 8b 0a be 0b 48 ae 5b 64 |`n...7......H.[d|
00000090 3b 08 19 ba 3f dd d0 97 68 a9 c9 c1 6e 32 a1 eb |;...?...h...n2..|
000000a0 1b a8 f1 90 00 01 8b 82 34 38 61 63 37 32 63 64 |........48ac72cd|
000000b0 2d 32 65 39 36 2d 34 30 64 65 2d 61 36 37 62 2d |-2e96-40de-a67b-|
000000c0 63 36 33 64 65 37 36 62 63 66 61 36 00 00 00 00 |c63de76bcfa6....|
000000d0 00 ac 71 f3 00 06 2e 46 e5 9e 38 03 e0 25 0b 04 |..q....F..8..%..|
000000e0 bd f4 41 3c ab a4 05 5f bb 4f 9b d2 11 4a de 18 |..A<..._.O...J..|
000000f0 79 87 49 de 42 d2 48 d7 00 00 00 08 00 00 0f a0 |y.I.B.H.........|
00000100 00 00 de ad 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00000110 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00000120 00 00 00 00 00 00 00 00 00 00 02 00 00 00 0f a0 |................|
00000130 00 00 de ad 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00000140 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00000150 00 00 00 00 00 00 00 00 00 00 03 f8 00 00 0f a0 |................|
00000160 00 00 de ad 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00000170 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00000180 00 00 00 00 00 00 00 00 00 00 05 f0 00 00 0f a0 |................|
00000190 00 00 de ad 00 00 00 00 00 00 00 00 00 00 00 00 |................|
000001a0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
000001b0 00 00 00 00 00 00 00 00 00 00 07 e8 00 00 0f a0 |................|
000001c0 00 00 de ad 00 00 00 00 00 00 00 00 00 00 00 00 |................|
000001d0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
000001e0 00 00 00 00 00 00 00 00 00 00 09 e0 00 00 0f a0 |................|
000001f0 00 00 de ad 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00000200

Unknown BootLoader on sdb1

00000000 45 52 08 00 00 00 90 90 00 00 00 00 00 00 00 00 |ER..............|
00000010 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00000020 33 ed fa 8e d5 bc 00 7c fb fc 66 31 db 66 31 c9 |3......|..f1.f1.|
00000030 66 53 66 51 06 57 8e dd 8e c5 52 be 00 7c bf 00 |fSfQ.W....R..|..|
00000040 06 b9 00 01 f3 a5 ea 4b 06 00 00 52 b4 41 bb aa |.......K...R.A..|
00000050 55 31 c9 30 f6 f9 cd 13 72 16 81 fb 55 aa 75 10 |U1.0....r...U.u.|
00000060 83 e1 01 74 0b 66 c7 06 f1 06 b4 42 eb 15 eb 00 |...t.f.....B....|
00000070 5a 51 b4 08 cd 13 83 e1 3f 5b 51 0f b6 c6 40 50 |ZQ......?[Q...@P|
00000080 f7 e1 53 52 50 bb 00 7c b9 04 00 66 a1 b0 07 e8 |..SRP..|...f....|
00000090 44 00 0f 82 80 00 66 40 80 c7 02 e2 f2 66 81 3e |D.....f@.....f.>|
000000a0 40 7c fb c0 78 70 75 09 fa bc ec 7b ea 44 7c 00 |@|..xpu....{.D|.|
000000b0 00 e8 83 00 69 73 6f 6c 69 6e 75 78 2e 62 69 6e |....isolinux.bin|
000000c0 20 6d 69 73 73 69 6e 67 20 6f 72 20 63 6f 72 72 | missing or corr|
000000d0 75 70 74 2e 0d 0a 66 60 66 31 d2 66 03 06 f8 7b |upt...f`f1.f...{|
000000e0 66 13 16 fc 7b 66 52 66 50 06 53 6a 01 6a 10 89 |f...{fRfP.Sj.j..|
000000f0 e6 66 f7 36 e8 7b c0 e4 06 88 e1 88 c5 92 f6 36 |.f.6.{.........6|
00000100 ee 7b 88 c6 08 e1 41 b8 01 02 8a 16 f2 7b cd 13 |.{....A......{..|
00000110 8d 64 10 66 61 c3 e8 1e 00 4f 70 65 72 61 74 69 |.d.fa....Operati|
00000120 6e 67 20 73 79 73 74 65 6d 20 6c 6f 61 64 20 65 |ng system load e|
00000130 72 72 6f 72 2e 0d 0a 5e ac b4 0e 8a 3e 62 04 b3 |rror...^....>b..|
00000140 07 cd 10 3c 0a 75 f1 cd 18 f4 eb fd 00 00 00 00 |...<.u..........|
00000150 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
000001b0 58 03 00 00 00 00 00 00 3d 54 e2 15 00 00 80 00 |X.......=T......|
000001c0 01 00 00 5c e0 fb 00 00 00 00 80 51 2e 00 00 fe |...\.......Q....|
000001d0 ff ff ef fe ff ff 60 38 00 00 00 13 00 00 00 00 |......`8........|
000001e0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
000001f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 55 aa |..............U.|
00000200


=============================== StdErr Messages: ===============================

File descriptor 9 (/proc/5294/mounts) leaked on lvs invocation. Parent PID 12271: bash
File descriptor 63 (pipe:[38865]) leaked on lvs invocation. Parent PID 12271: bash

ADDITIONAL INFORMATION :
=================== log of boot-repair 2017-02-24__00h43 ===================
boot-repair version : 4ppa40
boot-sav version : 4ppa40
glade2script version : 3.2.3~ppa1
boot-sav-extra version : 4ppa40
grub-probe: error: cannot find a GRUB drive for /dev/sdb1. Check your device.map.
Warning: The driver descriptor says the physical block size is 2048 bytes, but Linux says it is 512 bytes.
Warning: The driver descriptor says the physical block size is 2048 bytes, but Linux says it is 512 bytes.
boot-repair is executed in live-session (Ubuntu 16.04.2 LTS, xenial, Ubuntu, x86_64)
CPU op-mode(s): 32-bit, 64-bit
BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/ubuntu.seed boot=casper quiet splash ---
ls: cannot access '/home/usr/.config': No such file or directory
mount: unknown filesystem type 'crypto_LUKS'
mount /dev/sda5 : Error code 32
mount -r /dev/sda5 /mnt/boot-sav/sda5
mount: unknown filesystem type 'crypto_LUKS'
mount -r /dev/sda5 : Error code 32
mount: /dev/sdb2 is already mounted or /mnt/boot-sav/sdb2 busy
mount /dev/sdb2 : Error code 32
mount -r /dev/sdb2 /mnt/boot-sav/sdb2
mount: /dev/sdb2 is already mounted or /mnt/boot-sav/sdb2 busy
mount -r /dev/sdb2 : Error code 32

=================== os-prober:


=================== blkid:
/dev/sda1: UUID="3f81bc56-9c80-4fe4-bd85-707246ed409a" TYPE="ext2" PARTUUID="22eacc1a-01"
/dev/loop0: TYPE="squashfs"
/dev/sda5: UUID="48ac72cd-2e96-40de-a67b-c63de76bcfa6" TYPE="crypto_LUKS" PARTUUID="22eacc1a-05"
/dev/sdb1: UUID="2017-02-15-21-44-13-00" LABEL="Ubuntu 16.04.2 LTS amd64" TYPE="iso9660" PTUUID="15e2543d" PTTYPE="dos" PARTUUID="15e2543d-01"
/dev/sdb2: SEC_TYPE="msdos" UUID="E561-C446" TYPE="vfat" PARTUUID="15e2543d-02"

mount: unknown filesystem type 'crypto_LUKS'
mount /dev/sda5 : Error code 32
mount -r /dev/sda5 /mnt/boot-sav/sda5
mount: unknown filesystem type 'crypto_LUKS'
mount -r /dev/sda5 : Error code 32
mount: /dev/sdb2 is already mounted or /mnt/boot-sav/sdb2 busy
mount /dev/sdb2 : Error code 32
mount -r /dev/sdb2 /mnt/boot-sav/sdb2
mount: /dev/sdb2 is already mounted or /mnt/boot-sav/sdb2 busy
mount -r /dev/sdb2 : Error code 32
dd: invalid number: ‘0’
Warning: /var/log/boot-sav/log/2017-02-24__00h43boot-repair55/sdb/current_mbr.img could not be created. Please report this message to boot.repair@gmail.com

=================== sda1recordfail=1/grub/grubenv :
recordfail=1




=================== efibootmgr -v
BootCurrent: 0002
Timeout: 1 seconds
BootOrder: 0002,0001
Boot0001* Hard Drive BBS(HD,,0x0)..GO..NO........o.M.T.F.D.D.A.V.5.1.2. T.B.N............ ........A...................... .....>..Gd-.;.A..MQ..L. . . . . . . . .6.1.6.2.3.1.A.E.3.4.C.B... .....BO
Boot0002* UEFI: KingstonDataTraveler 2.0PMAP PciRoot(0x0)/Pci(0x14,0x0)/USB(1,0)/CDROM(1,0x3860,0x4c00)..BO

=================== UEFI/Legacy mode:
BIOS is EFI-compatible, and is setup in EFI-mode for this live-session.
SecureBoot disabled. (maybe sec-boot, Please report this message to boot.repair@gmail.com)


=================== PARTITIONS & DISKS:
sda1 : sda, is-sepboot, grubenv-ng nogrub, no-docgrub, no-update-grub, 32, no-boot, no-os, not--efi--part, part-has-no-fstab, part-has-no-fstab, no-nt, no-winload, no-recov-nor-hid, no-bmgr, notwinboot, nopakmgr, nogrubinstall, no---usr, part-has-no-fstab, not-sep-usr, standard, not-far, /mnt/boot-sav/sda1.
sda5 : sda, maybesepboot, no-grubenv nogrub, no-docgrub, no-update-grub, 32, no-boot, no-os, not--efi--part, part-has-no-fstab, part-has-no-fstab, no-nt, no-winload, no-recov-nor-hid, no-bmgr, notwinboot, nopakmgr, nogrubinstall, no---usr, part-has-no-fstab, not-sep-usr, standard, farbios, /mnt/boot-sav/sda5.
sdb2 : sdb, not-sepboot, no-grubenv nogrub, no-docgrub, no-update-grub, 32, no-boot, no-os, not--efi--part, part-has-no-fstab, part-has-no-fstab, no-nt, no-winload, no-recov-nor-hid, no-bmgr, notwinboot, nopakmgr, nogrubinstall, no---usr, part-has-no-fstab, not-sep-usr, standard, not-far, /mnt/boot-sav/sdb2.

sda : not-GPT, BIOSboot-not-needed, has-no-EFIpart, not-usb, no-os, 2048 sectors * 512 bytes
sdb : not-GPT, BIOSboot-not-needed, has-no-EFIpart, usb-disk, no-os, 0 sectors * 512 bytes


=================== parted -l:

Model: ATA MTFDDAV512TBN (scsi)
Disk /dev/sda: 512GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Disk Flags:

Number Start End Size Type File system Flags
1 1049kB 512MB 511MB primary ext2 boot
2 513MB 512GB 512GB extended
5 513MB 512GB 512GB logical


Model: Kingston DataTraveler 2.0 (scsi)
Disk /dev/sdb: 15.6GB
Sector size (logical/physical): 512B/512B
Partition Table: unknown
Disk Flags:

=================== parted -lm:

BYT;
/dev/sda:512GB:scsi:512:512:msdos:ATA MTFDDAV512TBN:;
1:1049kB:512MB:511MB:ext2::boot;
2:513MB:512GB:512GB:::;
5:513MB:512GB:512GB:::;

BYT;
/dev/sdb:15.6GB:scsi:512:512:unknown:Kingston DataTraveler 2.0:;

=================== lsblk:
KNAME TYPE FSTYPE SIZE LABEL
sdb disk iso9660 14.6G Ubuntu 16.04.2 LTS amd64
sdb2 part vfat 2.4M Ubuntu 16.04.2 LTS amd64
sdb1 part iso9660 1.5G Ubuntu 16.04.2 LTS amd64
loop0 loop squashfs 1.4G
sda disk 477G
sda2 part 1K
sda5 part crypto_LUKS 476.5G
sda1 part ext2 487M

KNAME ROTA RO RM STATE MOUNTPOINT
sdb 1 0 1 running /cdrom
sdb2 1 0 1
sdb1 1 0 1
loop0 1 1 0 /rofs
sda 0 0 0 running
sda2 0 0 0
sda5 0 0 0
sda1 0 0 0 /mnt/boot-sav/sda1


=================== mount:
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
udev on /dev type devtmpfs (rw,nosuid,relatime,size=4012124k,nr_inodes=100303 1,mode=755)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode =000)
tmpfs on /run type tmpfs (rw,nosuid,noexec,relatime,size=805544k,mode=755)
/dev/sdb on /cdrom type iso9660 (ro,noatime)
/dev/loop0 on /rofs type squashfs (ro,noatime)
aufs on / type aufs (rw,noatime,si=27e19d29eadfb239)
securityfs on /sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
tmpfs on /run/lock type tmpfs (rw,nosuid,nodev,noexec,relatime,size=5120k)
tmpfs on /sys/fs/cgroup type tmpfs (ro,nosuid,nodev,noexec,mode=755)
cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,release_age nt=/lib/systemd/systemd-cgroups-agent,name=systemd)
pstore on /sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime)
efivarfs on /sys/firmware/efi/efivars type efivarfs (rw,nosuid,nodev,noexec,relatime)
cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory)
cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer)
cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio)
cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset)
cgroup on /sys/fs/cgroup/pids type cgroup (rw,nosuid,nodev,noexec,relatime,pids)
cgroup on /sys/fs/cgroup/net_cls,net_prio type cgroup (rw,nosuid,nodev,noexec,relatime,net_cls,net_prio)
cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices)
cgroup on /sys/fs/cgroup/perf_event type cgroup (rw,nosuid,nodev,noexec,relatime,perf_event)
cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpu,cpuacct)
cgroup on /sys/fs/cgroup/hugetlb type cgroup (rw,nosuid,nodev,noexec,relatime,hugetlb)
systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=31,pgrp=1,timeout=0,minproto=5,max proto=5,direct,pipe_ino=10023)
mqueue on /dev/mqueue type mqueue (rw,relatime)
debugfs on /sys/kernel/debug type debugfs (rw,relatime)
hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime)
tracefs on /sys/kernel/debug/tracing type tracefs (rw,relatime)
fusectl on /sys/fs/fuse/connections type fusectl (rw,relatime)
tmpfs on /tmp type tmpfs (rw,nosuid,nodev,relatime)
tmpfs on /run/user/999 type tmpfs (rw,nosuid,nodev,relatime,size=805544k,mode=700,ui d=999,gid=999)
gvfsd-fuse on /run/user/999/gvfs type fuse.gvfsd-fuse (rw,nosuid,nodev,relatime,user_id=999,group_id=999 )
/dev/sda1 on /mnt/boot-sav/sda1 type ext2 (rw,relatime,block_validity,barrier,user_xattr,acl )


=================== ls:
/sys/block/sda (filtered): alignment_offset badblocks bdi capability dev device discard_alignment events events_async events_poll_msecs ext_range holders inflight integrity power queue range removable ro sda1 sda2 sda5 size slaves stat subsystem trace uevent
/sys/block/sdb (filtered): alignment_offset badblocks bdi capability dev device discard_alignment events events_async events_poll_msecs ext_range holders inflight integrity power queue range removable ro sdb1 sdb2 size slaves stat subsystem trace uevent
/dev (filtered): acpi_thermal_rel autofs block bsg btrfs-control bus char console core cpu cpu_dma_latency cuse disk dri drm_dp_aux0 ecryptfs fb0 fd full fuse gpiochip0 hidraw0 hidraw1 hpet hugepages hwrng i2c-0 i2c-1 i2c-2 i2c-3 i2c-4 i2c-5 initctl input kmsg kvm lightnvm log mapper mcelog media0 mei0 mem memory_bandwidth mqueue net network_latency network_throughput null port ppp psaux ptmx pts random rfkill rtc rtc0 sda sda1 sda2 sda5 sdb sdb1 sdb2 sg0 sg1 shm snapshot snd stderr stdin stdout uhid uinput urandom userio v4l vfio vga_arbiter vhci vhost-net video0 zero
ls /dev/mapper: control

=================== hexdump -n512 -C /dev/sdb2
00000000 eb 3c 90 6d 6b 66 73 2e 66 61 74 00 02 04 01 00 |.<.mkfs.fat.....|
00000010 02 00 02 00 13 f8 04 00 20 00 40 00 00 00 00 00 |........ .@.....|
00000020 00 00 00 00 80 00 29 46 c4 61 e5 4e 4f 20 4e 41 |......)F.a.NO NA|
00000030 4d 45 20 20 20 20 46 41 54 31 32 20 20 20 0e 1f |ME FAT12 ..|
00000040 be 5b 7c ac 22 c0 74 0b 56 b4 0e bb 07 00 cd 10 |.[|.".t.V.......|
00000050 5e eb f0 32 e4 cd 16 cd 19 eb fe 54 68 69 73 20 |^..2.......This |
00000060 69 73 20 6e 6f 74 20 61 20 62 6f 6f 74 61 62 6c |is not a bootabl|
00000070 65 20 64 69 73 6b 2e 20 20 50 6c 65 61 73 65 20 |e disk. Please |
00000080 69 6e 73 65 72 74 20 61 20 62 6f 6f 74 61 62 6c |insert a bootabl|
00000090 65 20 66 6c 6f 70 70 79 20 61 6e 64 0d 0a 70 72 |e floppy and..pr|
000000a0 65 73 73 20 61 6e 79 20 6b 65 79 20 74 6f 20 74 |ess any key to t|
000000b0 72 79 20 61 67 61 69 6e 20 2e 2e 2e 20 0d 0a 00 |ry again ... ...|
000000c0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
000001f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 55 aa |..............U.|
00000200

=================== df -Th:

Filesystem Type Size Used Avail Use% Mounted on
udev devtmpfs 3.9G 0 3.9G 0% /dev
tmpfs tmpfs 787M 9.7M 778M 2% /run
/dev/sdb iso9660 1.5G 1.5G 0 100% /cdrom
/dev/loop0 squashfs 1.4G 1.4G 0 100% /rofs
aufs aufs 3.9G 63M 3.8G 2% /
tmpfs tmpfs 3.9G 6.8M 3.9G 1% /dev/shm
tmpfs tmpfs 5.0M 4.0K 5.0M 1% /run/lock
tmpfs tmpfs 3.9G 0 3.9G 0% /sys/fs/cgroup
tmpfs tmpfs 3.9G 152K 3.9G 1% /tmp
tmpfs tmpfs 787M 84K 787M 1% /run/user/999
/dev/sda1 ext2 472M 63M 385M 15% /mnt/boot-sav/sda1

=================== fdisk -l:
Disk /dev/ram0: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram1: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram2: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram3: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram4: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram5: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram6: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram7: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram8: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram9: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram10: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram11: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram12: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram13: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram14: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/ram15: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/loop0: 1.4 GiB, 1497772032 bytes, 2925336 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/sda: 477 GiB, 512110190592 bytes, 1000215216 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x22eacc1a

Device Boot Start End Sectors Size Id Type
/dev/sda1 * 2048 999423 997376 487M 83 Linux
/dev/sda2 1001470 1000214527 999213058 476.5G 5 Extended
/dev/sda5 1001472 1000214527 999213056 476.5G 83 Linux


Disk /dev/sdb: 14.6 GiB, 15610576896 bytes, 30489408 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x15e2543d

Device Boot Start End Sectors Size Id Type
/dev/sdb1 * 0 3035519 3035520 1.5G 0 Empty
/dev/sdb2 14432 19295 4864 2.4M ef EFI (FAT-12/16/32)


No OS or WinEFI system
Gtk-Message: GtkDialog mapped without a transient parent. This is discouraged.
/boot detected. Please check the options.
Gtk-Message: GtkDialog mapped without a transient parent. This is discouraged.

=================== Recommended repair
The default repair of the Boot-Repair utility will not act on the MBR.
The boot flag will be placed on sdb2.
Additional repair will be performed: repair-filesystems


Gtk-Message: GtkDialog mapped without a transient parent. This is discouraged.
Force Unmount all blkid partitions (for fsck) except / /boot /cdrom /dev /etc /home /opt /pas /proc /rofs /sys /tmp /usr /var

fsck -fyM /dev/sda1
fsck from util-linux 2.27.1

fsck -fyM /dev/sda5
fsck from util-linux 2.27.1

fsck -fyM /dev/sdb2
fsck from util-linux 2.27.1
fsck.fat 3.0.28 (2015-05-16)
/dev/sdb2: 4 files, 1195/1205 clusters
mount: unknown filesystem type 'crypto_LUKS'
mount /dev/sda5 : Error code 32
mount -r /dev/sda5 /mnt/boot-sav/sda5
mount: unknown filesystem type 'crypto_LUKS'
mount -r /dev/sda5 : Error code 32
mount: /dev/sdb2 is already mounted or /mnt/boot-sav/sdb2 busy
mount /dev/sdb2 : Error code 32
mount -r /dev/sdb2 /mnt/boot-sav/sdb2
mount: /dev/sdb2 is already mounted or /mnt/boot-sav/sdb2 busy
mount -r /dev/sdb2 : Error code 32
parted /dev/sdb set 2 boot on
Warning: The driver descriptor says the physical block size is 2048 bytes, but
Linux says it is 512 bytes.
parted /dev/sdb set 1 boot off
Warning: The driver descriptor says the physical block size is 2048 bytes, but
Linux says it is 512 bytes.
SET@_progressbar1.pulse()

Boot successfully repaired.

You can now reboot your computer.

when I use this command sudo do-release-upgrade I always get the error which is given below

Hi,

I installed 14.4 in a multiple os machine where the default boot starts from CentOS boot. I added following to CentOS grub.conf, but I failed to boot ubuntu, the error was invalid format. Appreciate helps to fix the boot. Thank you.

title Ubuntu 14.4 (4.4.0-31-generic)
root (hd1,7)
kernel /boot/initrd.img-4.4.0-31-generic ro root=UUID=91584f92-af5e-487c-9f2c-09bc778f959b rd_NO_LUKS rd_NO_LVM LANG=en_US.UTF-8 rd_NO_MD SYSFONT=latarcyrheb-sun16 crashkernel=auto KEYBOARDTYPE=pc KEYTABLE=us rd_NO_DM rhgb quiet single rdblacklist=nouveau nouveau.modeset=0 nvidia.modeset=0
initrd /boot/initrd.img-4.4.0-31-generic

I am trying to install Lubuntu 16.04 to my old Asus A6B00L laptop, but keep getting "isolinux.bin missing or corrupt" error when booting from the USB installer.
This same USB installer starts fluently in my ASRock B150M desktop, and I have also wrote it with this computer, under Linux Mint 18.
I have tried to write it with a tool called USB Image Writer, as well as with dd:

The USB stick has following partitions written to it:

Based on other posts considering this error message, and the fact that it works on my desktop, I would assume that this is some kind of incompability between laptop BIOS and something on USB installer. I installed Lubuntu 14.04 to this laptop from the same USB stick by using ubuntu-14.04-mini-i386.iso. I think I wrote it with UnetBootin or dd under Lubuntu 14.04. I might still try this installer from Linux Mint 18 too.

Other than that, any ideas how I could get Lubuntu into that laptop of mine? The reason I am using mini installer in the first place is that the only USB stick this laptop recognizes on bootup is my old 256MB Swissmemory, and that cannot have any other installers but mini. CD/DVD drive of the laptop doesn't work.