Problem with LVM superblock on volume prevent system from booting
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Description
Experience Level: Intermediate
Hi there, one of our dedicated servers is down due to /dev/mapper/vg00-home volume having a problem with it's superblock.
On boot it shows: [/sbin/fsck.ext4 (1) -- /home] fsck.ext4 -a /dev/mapper/vg00-home
home: The filesystem size (according to the superblock) is 27262976 blocks
The physical size of the device is 6370304 blocks
Either the superblock or the partition table is likely to be corrupted
Trying to mount that volume shows:
EXT4-fs (dm-4): bad geometry: block count 27262976 exceeds size of device (6370304 blocks)
We somehow need to get this volume mounted without losing any data urgently. Running CentOS 6 (64 bit) and have access to serial console and rescue system
Many thanks
On boot it shows: [/sbin/fsck.ext4 (1) -- /home] fsck.ext4 -a /dev/mapper/vg00-home
home: The filesystem size (according to the superblock) is 27262976 blocks
The physical size of the device is 6370304 blocks
Either the superblock or the partition table is likely to be corrupted
Trying to mount that volume shows:
EXT4-fs (dm-4): bad geometry: block count 27262976 exceeds size of device (6370304 blocks)
We somehow need to get this volume mounted without losing any data urgently. Running CentOS 6 (64 bit) and have access to serial console and rescue system
Many thanks
Sean P.
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