A client's (truly ancient) file server running CentOS 7 suddenly
started misbehaving, and I believe the ext4 filesystem on
/dev/mapper/cl-root may be corrupted. A reboot fails with a file system
check and drops me into maintenance mode. I tried booting from a live
C7 DVD and as root running e2fsck. It complains that the superblock
could not be read and suggests running "e2fsck -b 8193 <device>". That
also fails.
Is there a way to more forcefully "encourage" e2fsck to do its job
without totally destroying that filesystem?
--Doc Savage
Fairview Heights, IL
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