e2fsck fails on newly formatted disk

atreloar · **Joined:** Sat Sep 01, 2012 3:44 am **Posts:** 3

Problem: e2fsck fails on external USB drive

Steps to reproduce:
1. Take new drive and insert in external USB enclosure
2. Format from Tonido web console
3. Run

Code:

e2fsck /dev/sdb

(which is the new device)

Result:

Code:

e2fsck 1.41.12 (17-May-2010)
e2fsck: Superblock invalid, trying backup blocks...
e2fsck: Bad magic number in super-block while trying to open /dev/sdb

The superblock could not be read or does not describe a correct ext2
filesystem.  If the device is valid and it really contains an ext2
filesystem (and not swap or ufs or something else), then the superblock
is corrupt, and you might try running e2fsck with an alternate superblock:
    e2fsck -b 8193 <device>

Trying the suggested alternate superblock doesn't work either.

Other information:
I have run badblocks on the drive - no badblocks reported.

Tuxedo · **Joined:** Wed Jan 28, 2009 11:30 pm **Posts:** 1352

How did you get sdb.
Are you using an USB hub to connect multiple HDDs or you have sata and an USB.

Also please post the output of the command:

Quote:

fdisk -l

atreloar · **Joined:** Sat Sep 01, 2012 3:44 am **Posts:** 3

I have two identical hard drives, one in the internal SATA enclosure, and one in a USB connected case.

The output of fdisk -l looks like this:

Quote:

WARNING: GPT (GUID Partition Table) detected on '/dev/sda'! The util fdisk doesn't support GPT. Use GNU Parted.

Disk /dev/sda: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

Device Boot Start End Blocks Id System
/dev/sda1 1 121602 976762583+ ee GPT

WARNING: GPT (GUID Partition Table) detected on '/dev/sdb'! The util fdisk doesn't support GPT. Use GNU Parted.

Disk /dev/sdb: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

Device Boot Start End Blocks Id System
/dev/sdb1 1 121602 976762583+ ee GPT

Tuxedo · **Joined:** Wed Jan 28, 2009 11:30 pm **Posts:** 1352

Based on your screen output, your command should be

Code:

# e2fsck /dev/sdb1

atreloar · **Joined:** Sat Sep 01, 2012 3:44 am **Posts:** 3

Thanks. I had assumed I needed to run it on the whole volume, not just the partition.

e2fsck fails on newly formatted disk

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