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[lubuntu] Lubuntu 18.04 not appars notification for news updates

July 15, 2018, 5:07 pm
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Hello.
Recently, I installed in my laptop a lubuntu 18.04.
In the first days, I have a notification with news updates for system (for example, firefox and other packets of system).
Since some day, now, I don't have any notification for new updates and I now that, I have new updates.
If run manually, appears the news updates and the option for update.
But, like indicate, since some day (and I don't made any change about this) I don't received the notifications of news updates.
And I don't know how search more for view possible issue...

Thanks and regards!
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[kubuntu] Installing 18.04 LTS on Mid 2010 Macbook Pro Core duo 2

July 15, 2018, 7:48 pm
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Im trying to install Kubuntu on my laptop, everything is good until actually booting into the OS. i get some weird rainbow confetti screen, sometimes black background and sometimes white background. it eventually just turns black with a mouse pointer. Not very easy to find anything on installation specific to my model of macbook. Trying Kubuntu from the live usb produces the same results. Im not in any way a programmer type but cant follow some directions.

Any help is appreciated
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Installing internet explorer

July 15, 2018, 8:09 pm
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Work requires me to use internet explorer to login to ajera.

The first thing I tried was to install wine and cabextract
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Ubuntu 18.04 wont boot after clean install, except in recovery

July 15, 2018, 11:54 pm
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As stated in the title, I've performed a clean reinstall of Ubuntu 18.04 and the OS won't boot at all, EXCEPT when I go into the recovery menu, then select the 'resume normal boot' option.

I go into grub, select the 'Ubuntu' option and then the screen just goes black and stays that way.

Obviously, Ubuntu is unusable in this state. For example, I'm stuck with very low screen resolution.

I'd also like to be able to turn off the splash screen and any graphics prior to the login screen, just to be able see what's going wrong.

Thanks for any help y'all :)
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[ubuntu] Upgrading from Ubuntu 16.04 to 18.04

July 16, 2018, 2:55 am
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Hi,

I have an ASUS laptop. After some sound card problems I decided to upgrade from Ubuntu 16.04 to 18.04 . Without the following command:

$ sudo apt autoremove

I tried:

$ sudo do-release-upgrade -d

Now for about a day I saw some upper text quickly appearing and disappearing. After that for about three days I am seeing five circles in the center of screen. One by one they become orange, then white and reverse of it.

What can I do now ?
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[ubuntu] Installation of Opencv.

July 16, 2018, 6:16 am
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Hi all.I've just started using Ubuntu today(18.04).I want to install Open CV .I'm following the procedure from Pyimagesearch
https://www.pyimagesearch.com/2018/0...nstall-opencv/

when I typed in this I got unable to locate package.

sudo apt-get install libavcodec-dev libavformat-dev libwscale-dev lib41-dev
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package libwscale-dev
E: Unable to locate package lib41-dev

can you please tell me how I can resolve this?
Thanks
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Can't boot Xubuntu

July 16, 2018, 6:40 am
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Hi I can't boot Xubuntu after installing it on my HDD it says an error about unknown file system in grub, I was trying to dual boot Windows 10 and Xubuntu and Windows 10 is already installed in my SSD, so I went into Xubuntu Live USB and installed boot repair but each time I'm repairing it it freezes the whole screen I know it can take time but, I've waited for almost 2 hours and I'm restarting it, also I made a report log file here if anyone can help me thanks.
http://paste.ubuntu.com/p/2JkcXdX4nG/

I'm in UEFI, I have a laptop.
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[SOLVED] install freeze

July 16, 2018, 8:43 am
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I have tried several times to install lubuntu 18.04 on an old emachines with 512MB ram. Every time it gets as far as the "who are you" screen and freezes . I can't type anything into the boxes. I have tried it both from the live DVD boot and from try lubuntu and then install from the desktop that opens. Freezes each time at that exact place. It will boot puppy linux fine and runs OK from the try option but can't install due to above issue. I have tried waiting a long time for it to unfreeze (like an hour) but no luck.Thanks
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Upgrade stuck upon reboot

July 16, 2018, 4:51 pm
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Upgraded 17.10 to 18.04; start-up screen froze on "Starting Network Manager...". What do I do next?

P.S. I *can* boot into safe mode and am now doing some obvious checks, but I doubt it's any of broken disk/corrupt filesystem/lack of space.
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Recover Interrupted Ubuntu Upgrade from 14.04 LTS to 16.04 LTS

July 16, 2018, 5:44 pm
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Hi All,

My initial upgrade seemed to fail when during the upgrade the screen turned black and never recovered after 20mins. I rebooted and then after a painful process of trial and error I was finally able to execute this command to update the distro:
Code:
apt-get dist-upgrade
(I was using this guide as reference: how-to-repair-ubuntu-installation-after-interrupted-dist-upgrade-without-losing)

I'm pretty sure my version is now 16.04 LTS as a mew image: 4.4.0-130-generic was added to GRUB2. However I cannot boot, instead, it tries to boot, fails and brings me to the recovery console.

To fix this, I type:
Code:
apt-get update
apt-get -f install
I get this message:
Code:
E: dpkg was interrupted, you must manually run 'dpkg --configure -a' to correct the problem.
So then I do exactly that and this happens
Code:
dpkg --configure -a
Setting up snapd (2.32.9) ...
Then crashes unexpectedly with no error and then exits the console session with this message:
Code:
Welcome to emergency mode! After logging in, type "journalctl -xb" to view
system logs, "systemctl reboot" to reboot, "systemctl default" or ^D to try again to boot into default mode.
Press Enter for maintenance
(or press Control-D to continue):
dpkg fails to configure snapd and I have no way of running apt-get -f install

How do I fix my interrupted Ubuntu upgrade? Do I:
1. Remove the snapd package? (I'm sure it is not required)
2. Fix snapd package somehow?

Any help would be appreciated. Also reformatting and a clean install is out of the question as I triple boot with Mac, Windows and Ubuntu on a hybrid/mbr gpt partition scheme and I literally have no way to back up my hard drive before reformatting everything.
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[ubuntu] Installation on new industrial PC

July 17, 2018, 7:18 am
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Hi,
About 20 years ago I installed Suse Linux on an industrial PC. That PC needs rejuvenation so a new PC has been acquired.. Since then I've come to my senses and decided that I want to use Ubuntu from now on.

The PC boots the Ubuntu 18.04 USB stick, and when I hit "install" it shows the ubuntu logo (human <-> computer) or when using server install images, just a cursor in the top-left corner. I have now let the "blinking cursor" sit for over half an hour without any change, and then forced a reboot. This time I ticked some of the "more options" items, that I thought might help with compatibility in some cases. Again nothing but the blinking cursor.

The CPU is an Intel CORE 2.

I have managed to get a 32-bit install up-and-running by installing an i386 image onto a harddisk and swapping the harddisk. The other PC has similar problems starting the AMD64 install.

I started out using usb-bootdisk-creator-gtk to create a bootable USB stick, but I have since switched to writing the ISO directly to the USB stick.
I have the following images that I have tried the past few days:
Quote:
8388f7232b400bdc80279668847f90da mini_amd64.iso
c7b21dea4d2ea037c3d97d5dac19af99 mini_i386.iso
129292a182136a35e1f89c586dbac2e2 ubuntu-18.04-desktop-amd64.iso
1413c9797dbfa1e57fabfb5c91cfb96f ubuntu-18.04-server-amd64.iso
Looking at: https://www.ubuntu.com/download/alternative-downloads it seems as if the 32-bit version is being deprecated, and as this system is likely to get a long life again, starting out with a deprecated install is not recommended.....

The "perform memtest" option shows "loading ...<somthing> OK" and then hangs.

What am I doing wrong?
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18.04 & gcc Backed into a corner

July 17, 2018, 8:07 am
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Attempting to install the Broadcom driver for integral wireless card
on a Dell M4800 laptop. The process errors and pokes back a message
about dkms is unhappy over lack of 'gcc'

Found 'gcc' but instructions provided for installation assume you
are downloading during the install and since the pc does not have
internet connectivity (no wireless) I cannot use that procedure.

Downloaded gcc on another system and used USB Thumb Drive
to shoe leather express the file to the M4800. Then unpack the
tar file and go to the directory created (gcc-7-7.3.0), I have
normally used the sequence:
./configure
make
make install
to install prior packages but found no ./configure in the directory
gcc-7-7.3.0.

Drilling further down and unpacking gcc-7.3.0 revealed a file 'INSTALL'
but after reading it I am lost.

Is there an easy method to install gcc without a network connection
and if so were do I find it?

TIA

Wilson
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errors after today's upgrade 18.04

July 18, 2018, 1:27 am
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Hi everyone
I get the following errors. Any ideas?
TIA,
Steve

dpkg: error processing package python3 (--configure):
installed python3 package post-installation script subprocess returned error exit status 4
dpkg: dependency problems prevent configuration of python3-update-manager:
python3-update-manager depends on python3:any (>= 3.3.2-2~); however:
Package python3 is not configured yet.


dpkg: error processing package python3-update-manager (--configure):
dependency problems - leaving unconfigured
No apport report written because the error message indicates it's a follow-up error from a previous failure.
dpkg: dependency problems prevent configuration of netplan.io:
netplan.io depends on python3; however:
Package python3 is not configured yet.


dpkg: error processing package netplan.io (--configure):
dependency problems - leaving unconfigured
No apport report written because the error message indicates it's a follow-up error from a previous failure.
dpkg: dependency problems prevent configuration of nplan:
nplan depends on netplan.io; however:
Package netplan.io is not configured yet.


dpkg: error processing package nplan (--configure):
dependency problems - leaving unconfigured
No apport report written because MaxReports has already been reached
dpkg: dependency problems prevent configuration of update-manager:
update-manager depends on python3:any (>= 3.3.2-2~); however:
Package python3 is not configured yet.


dpkg: error processing package update-manager (--configure):
dependency problems - leaving unconfigured
No apport report written because MaxReports has already been reached
dpkg: dependency problems prevent processing triggers for gnome-menus:
gnome-menus depends on python3:any (>= 3.1~); however:
Package python3 is not configured yet.


dpkg: error processing package gnome-menus (--configure):
dependency problems - leaving triggers unprocessed
No apport report written because MaxReports has already been reached
dpkg: dependency problems prevent configuration of update-manager-core:
update-manager-core depends on python3:any (>= 3.2~); however:
Package python3 is not configured yet.
update-manager-core depends on python3-update-manager (= 1:18.04.11.3); however:
Package python3-update-manager is not configured yet.


dpkg: error processing package update-manager-core (--configure):
dependency problems - leaving unconfigured
No apport report written because MaxReports has already been reached
Errors were encountered while processing:
python3
python3-update-manager
netplan.io
nplan
update-manager
gnome-menus
update-manager-core
E: Sub-process /usr/bin/dpkg returned an error code (1)
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Software Updater crashed then won't work

July 18, 2018, 4:49 am
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Software Updater crashed whilst doing an update. Now it won't open at all. I've tried sudo apt-get dist-upgrade in the termimal window and it gives segmentation faulty tree... 50%

Any suggestions?
Is there any way to re-install the Software Updater without having to install the whole operating system?
Also, is there any way to get the operating system to check itself for errors in case any other bits have got corrupted.

I should add that I have had an ongoing problem with the internet crashing intermittently, fine some days, unuseable on others, seems worse if there are videos, animated adverts etc. It often does this after updating then seems to sort itself out after a few days.
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Installation on older PC

July 18, 2018, 8:23 am
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Hello there,


I have:


  • 2011 Laptop with BIOS that has a UEFI on/off mode
  • Windows 7 Ultimate, BIOS installed on that laptop
  • Bootable Ubunut 16.02 USB stick with GRUB 2.02.



I want:


  • Dual boot, or some semblance



Behavior:


  • Regardless of whether UEFI is on/off, win 7 will boot
  • If UEFI is off, the USB GRUB will not launch. I can set the boot order for the USB stick first, in which case it automatically enters "try without installing mode"
  • If UEFI is on, USB GRUB works.
  • Right, with UEFI on, I tried installing Ubuntu locally, only to be greeted with the following during install:



"This machine's firmware has started the installer in UEFI mode but it looks like there may be existing operating systems already installed using "BIOS compatibility mode". If you continue to install Debian in UEFI mode, it might be difficult to reboot the machine into any BIOS-mode operating systems later.

If you wish to install in UEFI mode and don't care about keeping the ability to boot one of the existing systems, you have the option to force that here. If you wish to keep the option to boot an existing operating system, you should choose NOT to force UEFI installation here."


  • Deciding not to risk it, I turned off UEFI mode, and installed Ubuntu separately with a /, /boot, /home, swap. Trouble is, without UEFI, GRUB doesn't load. And apparently windows loader doesn't go for a multi OS boot menu.



Approaches I'm considering:


  1. (Preferred) Installing Ubuntu with UEFI mode on, despite the warning. My thinking is this: If UEFI mode is enabled, GRUB will load, and I can boot in Ubuntu, but GRUB won't see Windows. If UEFI mode is off, I can boot directly in Windows.
  2. (Non-preferred)Install Ubuntu in some sort of legacy mode, and somehow dual boot based on this(maybe with a separate boot loader?). I have no idea how to do this.



Nota Bene:

Good or bad, my windows install works, and it is set up exactly how I want it, doing the things I want, and I use it daily. Screwing around(e.g. upgrading it to UEFI) or getting rid of it is not an option. I am merely trying to expand my horizons and do some machine learning.

So, suggestions? Will approach 1 work? If not, any way for approach 2?

Many thanks in advance!
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[ubuntu] Ubuntu bionic kernel does not support cgroup cpu real-time runtime

July 18, 2018, 10:09 am
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Hi

How can we enable cpu-rt-runtime on Ubuntu bionic .

Info: reading kernel config from /boot/config-4.15.0-23-generic ...

  • CONFIG_RT_GROUP_SCHED: missing
    error message got -
    docker create -t -i --hostname racnode1 \

--volume /boot:/boot:ro \
--volume /dev/shm --tmpfs /dev/shm:rw,exec,size=4G \
--volume /opt/containers/rac_host_file:/etc/hosts \
--dns-search=example.com \
--privileged=false --volume racstorage:/oradata \
--cap-add=SYS_ADMIN --cap-add=SYS_NICE \
--cap-add=SYS_RESOURCE --cap-add=NET_ADMIN \
-e NODE_VIP=172.15.1.160 -e VIP_HOSTNAME=racnode1-vip \
-e PRIV_IP=192.168.17.150 -e PRIV_HOSTNAME=racnode1-priv \
-e PUBLIC_IP=172.15.1.150 -e PUBLIC_HOSTNAME=racnode1 \
-e SCAN_NAME=racnode-scan -e SCAN_IP=172.15.1.70 \
-e OP_TYPE=INSTALL -e DOMAIN=example.com \
-e ASM_DISCOVERY_DIR=/oradata -e ORACLE_PWD="Oracle_12c" \
-e ASM_DEVICE_LIST=/oradata/asm_disk01.img,/oradata/asm_disk02.img,/oradata/asm_disk03.img,/oradata/asm_disk04.img,/oradata/asm_disk05.img \
-e CMAN_HOSTNAME=racnode-cman1 -e CMAN_IP=172.15.1.15 \
-e OS_PASSWORD=Oracle_12c \
--restart=always --tmpfs=/run -v /sys/fs/cgroup:/sys/fs/cgroup:ro \
--cpu-rt-runtime=95000 --ulimit rtprio=99 \
--name racnode1 oracle/database-rac:12.2.0.1

Error response from daemon: Your kernel does not support cgroup cpu real-time runtime
Distribution:

Distributor ID: Ubuntu
Description: Ubuntu 18.04 LTS
Release: 18.04
Codename: bionic
Thanks in adv.
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[ubuntu] Newbie installation of Ubuntu

July 18, 2018, 10:19 am
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I am going to install Ubuntu on a Dell laptop with an expired version of Ubutuntu that was purchased with Ubuntu preloaded.

I want to wipe out the existing installation and start fresh by selecting the full installation mode (not dealing with partitions).

The installation should walk me through the process and include the ext4 partition automatically for me, right? Nothing "extra" is required for the ext4 partition if I want to use the entire drive for the installation?

Also, if I purchase a laptop with Windows and erase Windows, the installation will completely erase Windows and replace it with the ext4 partition and override Windows NTFS. Right?

The same should be true for installing Mint, etc.

Thanks in advance. ;)
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Need assistance with full installation to external hard drive

July 18, 2018, 11:24 am
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I have a Dell Chromebook 11 with Ubuntu installed onto it, but it only has a 16 GB SSD, which is really just too small for me. I was recently gifted a much larger compatible SSD to put in this thing, and need to install Ubuntu on it. Now here's the thing - finances are tight for me - which is why I have an older model Chromebook instead of something much more suitable. I do have a rather nifty piece of hardware that allows me to mount sata drives as an external USB drive.

Is there some way I can install Ubuntu to the new SSD while it is hooked up externally, and then physically install it into the chromebook? This thing is really tricky to get to boot to a live USB. Any advice(other than buy a real computer!) would be greatly appreciated.
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Need help in understanding menu options my GRUB2 Menu List

July 18, 2018, 12:30 pm
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There are lots of options in my GRUB2 Menu List
I want to understand what each options stands for and remove the unwanted ones

Following are the details from boot-repair tool.

http://paste.ubuntu.com/p/yKWczxYfm9/


I am using Ubuntu 18.04 LTS
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Will 18.04 Ubiquity Create Customary Swap File If Install on RAID O Array?

July 18, 2018, 5:34 pm
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The plan here is to build a new machine this weekend and use 2 identical NVME SSD’s in a RAID 0 setup, via mdadm.

But first... two questions:

1. All the advice Google has turned up for me relates to 16.04. Has anything changed in 18.04 regarding software RAID creation and use? Can’t find any Ubuntu docs to say it has, but the RAID docs aren’t all fully current.

2. It’s a UEFI motherboard. If I tell the installer — Ubiquity— to “Use the Entire Disk” AND that disk is the RAID partition, e.g., /dev/md0, will Ubiquity create a swap file as it would during a normal non-RAID install? (I am assuming that swap file will be striped and otherwise treated as any other FILE.)

(Should add I’ll be booting from the RAID array.)
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