Server Fault Asked by sat on January 21, 2021
While booting my system, It is going into initramfs
prompt and it is giving some error. Before taking any further steps, I planned to take a backup my data from hard disk. So, I bootted the system with Live CD.
When, I trying to mount the partition, I am getting this error.
root@ubuntu:~# mount dev/sda1 /mnt/
mount: wrong fs type, bad option, bad superblock on /dev/sda1,
missing codepage or helper program, or other error
In some cases useful info is found in syslog - try
dmesg | tail or so
The following errors are logged in syslog
:
Jun 21 08:10:34 ubuntu kernel: [ 739.053669] ata3.01: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
Jun 21 08:10:34 ubuntu kernel: [ 739.053675] ata3.01: BMDMA stat 0x64
Jun 21 08:10:34 ubuntu kernel: [ 739.053680] ata3.01: failed command: READ DMA EXT
Jun 21 08:10:34 ubuntu kernel: [ 739.053688] ata3.01: cmd 25/00:f0:a0:f5:6f/00:00:18:00:00/f0 tag 0 dma 122880 in
Jun 21 08:10:34 ubuntu kernel: [ 739.053690] res 51/40:00:af:f5:6f/40:00:18:00:00/10 Emask 0x9 (media error)
Jun 21 08:10:34 ubuntu kernel: [ 739.053694] ata3.01: status: { DRDY ERR }
Jun 21 08:10:34 ubuntu kernel: [ 739.053697] ata3.01: error: { UNC }
Jun 21 08:10:34 ubuntu kernel: [ 739.164130] ata3.00: configured for UDMA/100
Jun 21 08:10:34 ubuntu kernel: [ 739.196323] ata3.01: configured for UDMA/133
Jun 21 08:10:34 ubuntu kernel: [ 739.196345] sd 2:0:1:0: [sda] Unhandled sense code
Jun 21 08:10:34 ubuntu kernel: [ 739.196348] sd 2:0:1:0: [sda] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
Jun 21 08:10:34 ubuntu kernel: [ 739.196353] sd 2:0:1:0: [sda] Sense Key : Medium Error [current] [descriptor]
Jun 21 08:10:34 ubuntu kernel: [ 739.196359] Descriptor sense data with sense descriptors (in hex):
Jun 21 08:10:34 ubuntu kernel: [ 739.196362] 72 03 11 04 00 00 00 0c 00 0a 80 00 00 00 00 00
Jun 21 08:10:34 ubuntu kernel: [ 739.196376] 18 6f f5 af
Jun 21 08:10:34 ubuntu kernel: [ 739.196382] sd 2:0:1:0: [sda] Add. Sense: Unrecovered read error - auto reallocate failed
Jun 21 08:10:34 ubuntu kernel: [ 739.196389] sd 2:0:1:0: [sda] CDB: Read(10): 28 00 18 6f f5 a0 00 00 f0 00
Jun 21 08:10:34 ubuntu kernel: [ 739.196403] end_request: I/O error, dev sda, sector 409990575
Jun 21 08:10:34 ubuntu kernel: [ 739.196418] JBD: Failed to read block at offset 31637
Jun 21 08:10:34 ubuntu kernel: [ 739.196430] ata3: EH complete
Jun 21 08:10:34 ubuntu kernel: [ 739.197001] JBD: recovery failed
Jun 21 08:10:34 ubuntu kernel: [ 739.197004] EXT3-fs (sda1): error loading journal
How to take safe backup of my data? and How to fix this issue?
At first you should use "dd" to dump the current state. After that you can use "fsck" to check the filesystem and maybe fix your journal.
Answered by Pascal Schmiel on January 21, 2021
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