Gabriel de Perthuis wrote:
I'm afraid that doesn't work: with that patch, my backing device doesn't even get registered anymore, since blkid will detect it as XFS:
I just tried making an xfs filesystem on a bcache device,
and the xfs superblock isn't visible to the backing device.
Your problem is likely an old superblock; use wipefs before make-bcache.
If you do find a filesystem that doesn't put its blkid magic
at a fixed offset from the start of the device, we could
consider alternatives, like whitelisting them or porting to blkid.
For now, better safe than sorry.
After zeroing my devices and trying again, I cannot reproduce the issue.
I guess you're right, I must have had an old superblock or something.
Thanks for the fix.
Cyril
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