Hey Stefan--

On 11/22/2017 11:42 AM, Stefan Priebe - Profihost AG wrote:

I found the problem the device is not detected as bcache by blkid - see
here:

'/sbin/blkid -o udev -p /dev/sdf1'(out) 'ID_FS_AMBIVALENT=other:bcache
other:xfs_external_log'

normally it looks like this:
'/sbin/blkid -o udev -p /dev/sdg1'(out) 'ID_FS_TYPE=bcache'

so instead of setting the FS_TYPE to bcache it's ID_FS_AMBIVALENT which
skips the bcache udev rules.

Just no idea how to fix that.

Stefan

Good find.  Can you send me the first 8k of /dev/sdf1?  I'll poke at it
(no promises though).

Mike