Re: Need help to recover root filesystem after a power supply issue

Chris Murphy
2019-07-10T14:30:50Z

On Wed, Jul 10, 2019 at 3:52 AM Andrey Zhunev <a-j@a-j.ru> wrote:
>
> [root@tftp ~]# xfs_repair /dev/centos/root
> Phase 1 - find and verify superblock...
> superblock read failed, offset 53057945600, size 131072, ag 2, rval -1
>
> fatal error -- Input/output error
> [root@tftp ~]#

# smartctl -l scterc /dev/

Point it to the physical device. If it's a consumer drive, it might
support a configurable SCT ERC. Also need to see the kernel messages
at the time of the i/o error. There's some chance if a deep recover
read is possible, it'll recover the data. But I don't see how this is
related to power supply failure.

--
Chris Murphy