[BlueOnyx:25328] Re: [EXTERNAL] Re: Failed to mount /sysroot (metadata corruption detected) BO 5209R

Fri Jan 28 17:09:26 -05 2022

Hi Michael,

disk are just a few months old. I used an installation usb to get into recovery. Checked a few things, and discovered the software raid was missing sda1 and sda2 from md0 and md1 (removed).
TRIED ADDING WITH MDADM --ADD, BUT SDA1 AND SDA2 (SORRY, CAPSLOCK) but sda1 and 2 were busy. So tried to remove them with mdadm. Not in an array?!?
Looked at dmsetup table. Nothing strange.
So I just plunged into the deep with an xfs_repair -v -L /dev/dm-0, and then a xfs_repair -v -L /dev/mapper/VolumeGroup00-root.

cat /proc/mdstat. Peel my tangerines, sda and sdb active.
mdadm --detail /dev/md0. Praise be, up and running.

Reboot.

It runs!

Still no idea what and why, but we're back in bussiness. Thnx!

________________________________
From: Blueonyx <blueonyx-bounces at mail.blueonyx.it> on behalf of Michael Stauber <mstauber at blueonyx.it>
Sent: Friday, January 28, 2022 10:22 PM
To: blueonyx at mail.blueonyx.it <blueonyx at mail.blueonyx.it>
Subject: [EXTERNAL] [BlueOnyx:25327] Re: Failed to mount /sysroot (metadata corruption detected) BO 5209R

Hi Arie,

> Out of the blue the server rebooted at 16:18. And will not boot
> properly. Tried all five kernels, recovery, to no avail.
> Few lines from journal:
> XFS (dm-0): Starting recovery (logdev: internal)
> XFS (dm-0): Metadata corruption detected at
> xfs_inode_buf_verify+0x14d/0x160 [XFS], XFS_INODE BLOCK 0X402540
> XFS_INODE  etc etc
> blablabla
> blablabla
> XFS (dm-0) log mount/recover failed: error 117
> XFS (dm-0) log mount failed
> mount: mount /dev/mapper etc on /sysroot failed: Structure needs cleaning
> code=exited status=32
> Failed to mount /sysroot.
>
> Ideas, anyone, apart from booting recovery dvd and attepmting xfs_repair??

Sorry, but at that point there is only two options: Boot off a rescue
media and see what you can salvage from the trashed disk, or (better
yet) go for the backups. :-/

--
With best regards

Michael Stauber
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