On Fri, 18 Mar 2022 at 19:47, Paolo Galtieri <pgaltieri@xxxxxxxxx> wrote:
I'm having issues with a VM.
It would be useful to mention the host OS. From the name, I guess your
VM is running Fedora 34.
The VM was originally created under VMware and has worked fine for a
while. Today when I booted it up instead of seeing the usual MATE login
screen I get a login prompt:
f34-01-vm:
no matter what I enter, root or pgaltieri as login it never asks for
password and immediately says login incorrect. While it's booting I see
several [FAILED]... messages, e.g. [FAILED] to start CUPS Scheduler
I booted the system again and this time it dropped into emergency mode.
In emergency mode I see the following messages in dmesg:
BTRFS info (device sda2): flagging fs with big metadata feature
BTRFS info (device sda2): disk space caching is enabled
BTRFS info (device sda2): has skinny extents
BTRFS info (device sda2): start tree-log replay
BTRFS info (device sda2): parent transid verify failed on 61849600
wanted 145639 fount 145637
BTRFS info (device sda2): parent transid verify failed on 61849600
wanted 145639 fount 145637
BTRFS: error (device sda2) in btrfs_replay_log:2423 errno=-5 IO failure
(Failed to recover log tree)
BTRFS error (device sda2) open_ctree failed
I ran btrfs check in emergency mode and it came up with a lot of errors.
How do i recover the partition(s) so I can boot the system, or at least
mount them?
The underlying problem could be the physical disk that holds the VM's
virtual disk file, or a corrupt btrfs. Avoid doing anything that would write to the
virtual disk. Make a backup copy of the virtual disk. If the physical drive
is OK, use a separate VM to mount the Fedora 34 virtual disk for repair
attempts.
How do I recover from a parent transid verify failed error?
At one time VirtualBox had issues with btrfs. You should check for similar
reports for VMWare and btrfs.
George N. White III
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