On Mon, 04 May 2015 23:25:19 +0200, Goffredo Baroncelli wrote:
> A disk is missing, in this case you should use the "degraded" mount option:
>
> mount -o degraded /dev/sdaa /mnt/roms03
Goffredo - Thanks for responding - I tried that, but to no avail:
$ sudo mount -o degraded /dev/sdaa /mnt/roms03
mount: wrong fs type, bad option, bad superblock on /dev/sdaa,
missing codepage or helper program, or other error
In some cases useful info is found in syslog - try
dmesg | tail or so
$ dmesg -T|tail
[Mon May 4 14:33:17 2015] BTRFS info (device sdaa): allowing degraded mounts
[Mon May 4 14:33:17 2015] BTRFS info (device sdaa): disk space caching is enabled
[Mon May 4 14:33:17 2015] BTRFS: has skinny extents
[Mon May 4 14:33:17 2015] BTRFS: bdev (null) errs: wr 3, rd 28773, flush 2, corrupt 0, gen 0
[Mon May 4 14:33:22 2015] BTRFS (device sdaa): bad tree block start 8714499618262386624 1585233920
[Mon May 4 14:33:22 2015] BTRFS (device sdaa): bad tree block start 8714499618262386624 1585233920
[Mon May 4 14:33:22 2015] BTRFS (device sdaa): bad tree block start 8714499618262386624 1585233920
[Mon May 4 14:33:22 2015] BTRFS (device sdaa): bad tree block start 8714499618262386624 1585233920
[Mon May 4 14:33:22 2015] BTRFS: Failed to read block groups: -5
[Mon May 4 14:33:22 2015] BTRFS: open_ctree failed
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