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[all variants] Superblock warning - cannot resize partition

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Hello,

I have 3 hard drive with the following partition setup

Code:

NAME  MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
sda      8:0    0  59.6G  0 disk
├─sda1  8:1    0  57.2G  0 part /
├─sda2  8:2    0    1K  0 part
└─sda5  8:5    0  2.5G  0 part [SWAP]
sdb      8:16  0 465.8G  0 disk /media/disk1
sdc      8:32  0 465.8G  0 disk /media/disk2
sr0    11:0    1  1024M  0 rom

I have actually one for sdb (sdb1) and one for sdc(sdc1) but they are not shown with the above command "lsblk". Both occupies full capacities of each hard drive.

This is how I mount them
Code:

UID=290de80e-6f64-4dea-9cd6-704351e250c6 none            swap    sw              0      0
UUID=fe3c9af4-f074-426e-9bf2-a4c8aa55e372 / ext4 errors=remount-ro,user_xattr 0 1
/dev/sdb        /media/disk1    ext4    errors=remount-ro 0      1
/dev/sdc        /media/disk2    ext4    errors=remount-ro 0      1

When I use gparted I get the same warning for sdb1 & sdbc1 partition (see attached screenshot)

fdisk -l
Code:

Disk /dev/sda: 64.0 GB, 64023257088 bytes
255 heads, 63 sectors/track, 7783 cylinders, total 125045424 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 identifier: 0x000c31ea

  Device Boot      Start        End      Blocks  Id  System
/dev/sda1  *        2048  119851007    59924480  83  Linux
/dev/sda2      119853054  125044735    2595841    5  Extended
/dev/sda5      119853056  125044735    2595840  82  Linux swap / Solaris

Disk /dev/sdb: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders, total 976773168 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 identifier: 0x00000000

Disk /dev/sdb doesn't contain a valid partition table

Disk /dev/sdc: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders, total 976773168 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 identifier: 0x00000000

I cannot re-size or change sdb1 & sdc1 but both have data I can access normally.

It seems I have not partition for sdb & sdc disk but I can still use them and mount them directly without partition! :confused:

Any idea where to look in order to fix the situation?

Thanks

Attached Images
File Type: jpg gparted.jpg (85.5 KB)

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