Comment 15 for bug 1969247

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Andreas Hasenack (ahasenack) wrote :

On jammy, it works on btrfs:

root@nsn7:/mnt# rm -f foo.img; touch foo.img; fallocate -z -l 10M foo.img; ls -lah foo.img
-rw-r--r-- 1 root root 10M abr 19 10:46 foo.img

root@nsn7:/mnt# mount -t btrfs
/btrfs.img on /mnt type btrfs (rw,relatime,ssd,space_cache=v2,subvolid=5,subvol=/)