Take the 2-minute tour ×
Ask Ubuntu is a question and answer site for Ubuntu users and developers. It's 100% free, no registration required.

I use Ubuntu 12.04LTS(64-bit) desktop edition. Lately I tried to upgrade it to Ubuntu 12.10. Everything was going good, but due to some work I couldn't complete the upgrade, so I disconnected the internet connection. Then my lappy reverted back to the original state. I thought everything was fine. But the next time I started the lappy, it said it was unable to mount the root drive. Please I need to recover my data from the lappy.

I tried Using the Live-CD and then accessing the HDD but it shows the following error:

Error mounting: 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

then as said in the above error I opeed the terminal and typed "dmesg | tail". It said:

ubuntu@ubuntu:~$ dmesg | tail [ 1446.284420] 72 03 11 04 00 00 00 0c 00 0a 80 00 00 00 00 00 [ 1446.284430] 1c c5 9b 01 [ 1446.284435] sd 0:0:0:0: [sda] Add. Sense: Unrecovered read error - auto reallocate failed [ 1446.284444] sd 0:0:0:0: [sda] CDB: Read(10): 28 00 1c c5 9b 00 00 00 08 00 [ 1446.284453] end_request: I/O error, dev sda, sector 482712321 [ 1446.284467] ata1: EH complete [ 1451.533783] JBD2: Failed to read block at offset 12896 [ 1451.533789] JBD2: IO error -5 recovering block 12896 in log [ 1454.136060] JBD2: recovery failed

[ 1454.136069] EXT4-fs (sda1): error loading journal

to provide further info. about my system, I have done several HDD tests/checks from the live CD. They don't show that the Disk is getting old. All they say is the's ONE BAD SECTOR on the HDD. Secondly, I have not partitioned my HDD. I use the 497.6 GB for my Ubuntu OS & the rest is allotted to SWAP filesys.

Also visit here for more info. https://www.quora.com/Ubuntu/Problem-booting-the-Ubuntu-12-04-01-OS-due-to-bad-sectors-on-the-HDD

share|improve this question
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Browse other questions tagged or ask your own question.