On Thu, 23 Jul 2026 19:02:23 +0200 Michael Biebl <[email protected]> wrote:
< interestingly, running it once again then works again > # mkfs.btrfs -f -q -L Test -U 'f42896b1-3815-4e1e-a01a-9261c5bab6f8' $DEVICE ERROR: superblock magic doesn't match
It does output an error here, but the resulting fs has the correct UUID, btrfsck does not complain and the fs can be mounted successfully.
The return code is also "0". So it looks like "ERROR: superblock magic doesn't match" can be ignored? Michael
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