Recover failed ubuntu partition/hard disk

How to recover the hard disk or partition on ubuntu server if it gets corrupted or inaccessible?
Is there any specific command line tool or something?
Thyagaraj03Asked:
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sasi_kmrCommented:
connect the HDD to another PC and access the HDD from explore2fs-1.07 software.
 take the backup and reinstall the OS.

thanks,
Sasi
liddlerCommented:
boot of an ubuntu live cd and then try and mount the disk, if the partitions mount OK, it could be just the boot file is corrupt, this can be re-installed with grub-install:
http://ubuntuforums.org/showthread.php?t=1581099
Thyagaraj03Author Commented:
I would like to clarify one thing.  Can I use live cd even for servers?. How would be the interface, gui or tui?
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liddlerCommented:
Yes you can use the live cd on a server, have you got a monitor you can connect to server? or LOM / DRAC card ot serial connection?
maxalarieCommented:
I support liddler post.
Thyagaraj03Author Commented:
I'm just wondering why not to use parted, gpart, foremost, testdisk to recover partitions.
expert_tanmayCommented:
you can use partimage to recover a partition...

cheers

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