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Hard Drive Problem / Parted [ debian 7 ]
When I reboot my server, one of my fakeraid RAID 1 cannot be loaded.
So I dig in:
I was not able to mount /dev/mapper/isw_chcgejcdfg_Volume0p1 because it says device missing. But here are some information. How do I recover my partition ?
fdisk -l
Disk /dev/mapper/isw_chcgejcdfg_Volume0: 1000.2 GB, 1000202178560 bytes
255 heads, 63 sectors/track, 121600 cylinders, total 1953519880 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x00000000Device Boot Start End Blocks Id System
/dev/mapper/isw_chcgejcdfg_Volume0p1 1 1953519879 976759939+ ee GPT
Partition 1 does not start on physical sector boundary.parted /dev/mapper/isw_chcgejcdfg_Volume0 print
Model: Linux device-mapper (mirror) (dm)
Disk /dev/mapper/isw_chcgejcdfg_Volume0: 1000GB
Sector size (logical/physical): 512B/4096B
Partition Table: gptNumber Start End Size File system Name Flags
1 17.4kB 1000GB 1000GB ext4fsck /dev/mapper/isw_chcgejcdfg_Volume0
fsck from util-linux 2.20.1
e2fsck 1.42.5 (29-Jul-2012)
ext2fs_open2: Bad magic number in super-block
fsck.ext2: Superblock invalid, trying backup blocks...
fsck.ext2: Bad magic number in super-block while trying to open /dev/mapper/isw
chcgejcdfg_Volume0The 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
TestDisk 6.13, Data Recovery Utility, November 2011
Christophe GRENIER grenier@cgsecurity.org
http://www.cgsecurity.org
Please wait...
Disk /dev/sda - 1000 GB / 931 GiB - CHS 121601 255 63, sector size=512
Disk /dev/sdb - 1000 GB / 931 GiB - CHS 121601 255 63, sector size=512
Disk /dev/sdc - 1000 GB / 931 GiB - CHS 121601 255 63, sector size=512
Disk /dev/mapper/isw_chcgejcdfg_Volume0 - 1000 GB / 931 GiB - CHS 1953519880 1 1
, sector size=512
Disk /dev/mapper/pve-data - 863 GB / 804 GiB - CHS 1686142976 1 1, sector size=5
12
Disk /dev/mapper/pve-root - 103 GB / 96 GiB - CHS 201326592 1 1, sector size=512
Disk /dev/mapper/pve-swap - 16 GB / 15 GiB - CHS 31457280 1 1, sector size=512
Disk /dev/dm-0 - 103 GB / 96 GiB - CHS 201326592 1 1, sector size=512
Disk /dev/dm-1 - 1000 GB / 931 GiB - CHS 1953519880 1 1, sector size=512
Disk /dev/dm-2 - 16 GB / 15 GiB - CHS 31457280 1 1, sector size=512
Disk /dev/dm-3 - 863 GB / 804 GiB - CHS 1686142976 1 1, sector size=512
Disk /dev/sda - 1000 GB / 931 GiB - CHS 121601 255 63
Partition Start End Size in sectors
1 P Unknown 2048 4095 2048 [primary]
2 P EFI System 4096 1048575 1044480 [primary]
3 P Linux LVM 1048576 1953523711 1952475136 [primary]
Disk /dev/sdb - 1000 GB / 931 GiB - CHS 121601 255 63
Partition Start End Size in sectors
1 P MS Data 34 1953519846 1953519813
Disk /dev/sdc - 1000 GB / 931 GiB - CHS 121601 255 63
Partition Start End Size in sectors
1 P MS Data 34 1953519846 1953519813
Disk /dev/mapper/isw_chcgejcdfg_Volume0 - 1000 GB / 931 GiB - CHS 1953519880 1 1
Partition Start End Size in sectors
1 P MS Data 34 1953519846 1953519813
Disk /dev/mapper/pve-data - 863 GB / 804 GiB - CHS 1686142976 1 1
Partition Start End Size in sectors
P ext3 0 1686142975 1686142976
Disk /dev/mapper/pve-root - 103 GB / 96 GiB - CHS 201326592 1 1
Partition Start End Size in sectors
P ext3 0 201326591 201326592
Disk /dev/mapper/pve-swap - 16 GB / 15 GiB - CHS 31457280 1 1
Partition Start End Size in sectors
P Linux SWAP 2 0 31457279 31457280
Disk /dev/dm-0 - 103 GB / 96 GiB - CHS 201326592 1 1
Partition Start End Size in sectors
P ext3 0 201326591 201326592
Disk /dev/dm-1 - 1000 GB / 931 GiB - CHS 1953519880 1 1
Partition Start End Size in sectors
1 P MS Data 34 1953519846 1953519813
Disk /dev/dm-2 - 16 GB / 15 GiB - CHS 31457280 1 1
Partition Start End Size in sectors
P Linux SWAP 2 0 31457279 31457280
Disk /dev/dm-3 - 863 GB / 804 GiB - CHS 1686142976 1 1
Partition Start End Size in sectors
P ext3 0 1686142975 1686142976
Comments
testdisk ?
what's testdisk
http://www.cgsecurity.org/wiki/TestDisk
TestDisk 6.13, Data Recovery Utility, November 2011
Christophe GRENIER grenier@cgsecurity.org
http://www.cgsecurity.org
Please wait...
Disk /dev/sda - 1000 GB / 931 GiB - CHS 121601 255 63, sector size=512
Disk /dev/sdb - 1000 GB / 931 GiB - CHS 121601 255 63, sector size=512
Disk /dev/sdc - 1000 GB / 931 GiB - CHS 121601 255 63, sector size=512
Disk /dev/mapper/isw_chcgejcdfg_Volume0 - 1000 GB / 931 GiB - CHS 1953519880 1 1
, sector size=512
Disk /dev/mapper/pve-data - 863 GB / 804 GiB - CHS 1686142976 1 1, sector size=5
12
Disk /dev/mapper/pve-root - 103 GB / 96 GiB - CHS 201326592 1 1, sector size=512
Disk /dev/mapper/pve-swap - 16 GB / 15 GiB - CHS 31457280 1 1, sector size=512
Disk /dev/dm-0 - 103 GB / 96 GiB - CHS 201326592 1 1, sector size=512
Disk /dev/dm-1 - 1000 GB / 931 GiB - CHS 1953519880 1 1, sector size=512
Disk /dev/dm-2 - 16 GB / 15 GiB - CHS 31457280 1 1, sector size=512
Disk /dev/dm-3 - 863 GB / 804 GiB - CHS 1686142976 1 1, sector size=512
Disk /dev/sda - 1000 GB / 931 GiB - CHS 121601 255 63
Partition Start End Size in sectors
1 P Unknown 2048 4095 2048 [primary]
2 P EFI System 4096 1048575 1044480 [primary]
3 P Linux LVM 1048576 1953523711 1952475136 [primary]
Disk /dev/sdb - 1000 GB / 931 GiB - CHS 121601 255 63
Partition Start End Size in sectors
1 P MS Data 34 1953519846 1953519813
Disk /dev/sdc - 1000 GB / 931 GiB - CHS 121601 255 63
Partition Start End Size in sectors
1 P MS Data 34 1953519846 1953519813
Disk /dev/mapper/isw_chcgejcdfg_Volume0 - 1000 GB / 931 GiB - CHS 1953519880 1 1
Partition Start End Size in sectors
1 P MS Data 34 1953519846 1953519813
Disk /dev/mapper/pve-data - 863 GB / 804 GiB - CHS 1686142976 1 1
Partition Start End Size in sectors
P ext3 0 1686142975 1686142976
Disk /dev/mapper/pve-root - 103 GB / 96 GiB - CHS 201326592 1 1
Partition Start End Size in sectors
P ext3 0 201326591 201326592
Disk /dev/mapper/pve-swap - 16 GB / 15 GiB - CHS 31457280 1 1
Partition Start End Size in sectors
P Linux SWAP 2 0 31457279 31457280
Disk /dev/dm-0 - 103 GB / 96 GiB - CHS 201326592 1 1
Partition Start End Size in sectors
P ext3 0 201326591 201326592
Disk /dev/dm-1 - 1000 GB / 931 GiB - CHS 1953519880 1 1
Partition Start End Size in sectors
1 P MS Data 34 1953519846 1953519813
Disk /dev/dm-2 - 16 GB / 15 GiB - CHS 31457280 1 1
Partition Start End Size in sectors
P Linux SWAP 2 0 31457279 31457280
Disk /dev/dm-3 - 863 GB / 804 GiB - CHS 1686142976 1 1
Partition Start End Size in sectors
P ext3 0 1686142975 1686142976
root@kvm:~#
< PRE >
I updated original post
I ran a testdisk to scan the disk. I did not finished it. But suddenly, I can mount the partition. Not sure what happened.
how to properly configure fstab for gpt?