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Full Discussion: Remove /dev/sdb partition using fdisk - BY ACCIDENT!
Top Forums UNIX for Advanced & Expert Users Remove /dev/sdb partition using fdisk - BY ACCIDENT! Post 302180609 by kevindoman on Monday 31st of March 2008 03:46:37 PM
Old 03-31-2008
Remove /dev/sdb partition using fdisk - BY ACCIDENT!
Quote:
Originally Posted by era
It will probably be gone after the next reboot. RAID complicates matters, but I think you just might be lucky enough that it could be recovered if you can figure out what numbers to put in when you create a new partition with exactly the same parameters as the one you deleted.

There are also tools which can help you make an educated guess. TestDisk - CGSecurity is one I personally had some success with under similar circumstances.

This is Linux, right? Make a lot of sense to include platform information for this sort of question.
Sorry, I was in sort of a panic mode and forgot other detail. This is a server running CentOS 4.5. The system partition is on a separate raid1 set and identified as /dev/sda; The one I messed up was /dev/sdb, and it contains all the users "home" directory. As of now, from the user's side, I don't think my mistake affect anyone. But for how long, I really don't know.

I will take a look at TestDisk and would really appreciate all advice and suggestions.

K.
 

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LEARN ABOUT DEBIAN

testdisk

TESTDISK(8)						       Administration Tools						       TESTDISK(8)

NAME

       testdisk - Scan and repair disk partitions

SYNOPSIS

       testdisk [/log] [/debug] [/dump] [device|image.dd|image.e01]

       testdisk /version

       testdisk /list [/log]

DESCRIPTION

	  TestDisk checks and recovers lost partitions
	  It works with :
	  - BeFS (BeOS)
	  - BSD disklabel (FreeBSD/OpenBSD/NetBSD)
	  - CramFS, Compressed File System
	  - DOS/Windows FAT12, FAT16 and FAT32
	  - HFS and HFS+, Hierarchical File System
	  - JFS, IBM's Journaled File System
	  - Linux ext2/ext3/ext4
	  - Linux Raid
	    RAID 1: mirroring
	    RAID 4: striped array with parity device
	    RAID 5: striped array with distributed parity information
	    RAID 6: striped array with distributed dual redundancy information
	  - Linux Swap (versions 1 and 2)
	  - LVM and LVM2, Linux Logical Volume Manager
	  - Mac partition map
	  - Novell Storage Services NSS
	  - NTFS (Windows NT/2K/XP/2003/Vista/...)
	  - ReiserFS 3.5, 3.6 and 4
	  - Sun Solaris i386 disklabel
	  - Unix File System UFS and UFS2 (Sun/BSD/...)
	  - XFS, SGI's Journaled File System

	  It can undelete files from
	  - DOS/Windows FAT12, FAT16 and FAT32
	  - Linux ext2
	  - NTFS (Windows NT/2K/XP/2003/Vista/...)

OPTIONS

       /log   create a testdisk.log file

       /debug add debug information

       /dump  dump raw sectors

       /list  display current partitions

SEE ALSO

       fdisk(8), photorec(8).

AUTHOR

       TestDisk 6.13, Data Recovery Utility, November 2011
       Christophe GRENIER <grenier@cgsecurity.org>
       http://www.cgsecurity.org

2011								     November							       TESTDISK(8)
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