While attempting to expand a 1.64T ext4 volume to 2.18T the F9 kernel
deadlocked. (I have photo of screen/oops if anybody's interested.)
Now after recovery, the filesystem won't mount
EXT4-fs: ext4_check_descriptors: Block bitmap for group 13413 not in
group (block 0)!<3>EXT4-fs: group descriptors corrupted!
and fsck won't run:
fsck.ext4: Group descriptors look bad... trying backup blocks...
inst: recovering journal
fsck.ext4: unable to set superblock flags on inst
I peeked at all backup superblocks, but they all appear the same--the
larger/newer 2.18T geometry. :-(
What is the best way to recover? I know exactly how the original
filesystem was created. Is there a way to just replay the old superblocks
and trick it into thinking it never resized?
../C
dumpe2fs 1.41.0 (10-Jul-2008)
Filesystem volume name: inst
Last mounted on: <not available>
Filesystem UUID: ddabbf0c-bf3f-495a-9777-e832cc14e9df
Filesystem magic number: 0xEF53
Filesystem revision #: 1 (dynamic)
Filesystem features: has_journal ext_attr resize_inode dir_index filetype extent sparse_super large_file
Filesystem flags: signed_directory_hash test_filesystem
Default mount options: journal_data_writeback
Filesystem state: clean
Errors behavior: Remount read-only
Filesystem OS type: Linux
Inode count: 9080832
Block count: 581173248
Reserved block count: 5808792
Free blocks: 6282771
Free inodes: 4331111
First block: 0
Block size: 4096
Fragment size: 4096
Reserved GDT blocks: 885
Blocks per group: 32768
Fragments per group: 32768
Inodes per group: 512
Inode blocks per group: 16
RAID stride: 32
RAID stripe width: 64
Filesystem created: Sun Jul 27 21:02:11 2008
Last mount time: Wed Aug 13 18:28:35 2008
Last write time: Sat Oct 18 12:39:13 2008
Mount count: 2
Maximum mount count: -1
Last checked: Sun Jul 27 21:02:11 2008
Check interval: 0 (<none>)
Reserved blocks uid: 0 (user root)
Reserved blocks gid: 0 (group root)
First inode: 11
Inode size: 128
Journal inode: 8
Default directory hash: tea
Directory Hash Seed: c6e2cfa3-0545-46a4-8240-ccb987191b88
Journal backup: inode blocks
Journal size: 256M
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