Yeah, I tried that but ran into a problem. It came up fine in
single-user/maintenance mode. The mount command shows all of the
mounted file systems, but after I 'chroot /sysroot', the mount failed
(with some problem with mtab, sorry don't have the exact error
message). So I couldn't mount my 32TB RAID (where the xfsdump file was).
On 5/13/2020 12:48 AM, Simon Matter via CentOS wrote:
Hi,
I'm having some difficulty finding a method to shrink my /home to expand
my /. They both correspond to LVMs. It is my understanding that one
cannot shrink a xfs filesystem. One must back it up (xfsdump), remove
(lvremove) redefine it and then restore it back (xfsrestore).
Okay, I'm running into a problem where /home needs to be "unused". If
tried going in to "maintance mode", but I ran into a problem with the
mount command (after issuing a 'chroot /sysroot'). I then tried using
SystemRescueCD to boot to, but it wouldn't mount my 32TB RAID USB drive
(something about too big).
Any thoughts or suggestions?
What is the problem if you boot directly into maintenance mode? Then it
should be possible to backup home to a remote destination, unmount /home,
remove the home LV, expand /, recreate home and mount it, restore from
backup and you're done. No need to use any SystemRescueCD or other tool.
Regards,
Simon
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