(address . bug-guix@gnu.org)
The filesystem options declared for the root file system are apparently
ignored. This happens for a btrfs root filesystem on a LUKS volume.
Exerpt from '/etc/config.scm":
Toggle snippet (28 lines)
(mapped-devices
(list (mapped-device
(source
(uuid "ee90b2aa-97e8-4ae5-ac72-9bf9058cc949"))
(target "cryptroot")
(type luks-device-mapping))
(mapped-device
(source
(uuid "ec9cd327-0370-4e20-baa4-254d03b1901e"))
(target "cryptguillaume")
(type luks-device-mapping))))
(file-systems
(cons* (file-system
(mount-point "/")
(device "/dev/mapper/cryptroot")
(type "btrfs")
(options "autodefrag,compress=lzo")
(dependencies mapped-devices))
(file-system
(mount-point "/home/guillaume")
(device "/dev/mapper/cryptguillaume")
(type "btrfs")
(options "autodefrag,compress=lzo")
(dependencies mapped-devices))
%base-file-systems))
Exerpt from '/etc/fstab':
Toggle snippet (5 lines)
/dev/mapper/cryptroot / btrfs autodefrag,compress=lzo
/dev/mapper/cryptguillaume /home/guillaume btrfs autodefrag,compress=lzo
Exerpt from '/etc/mtab':
Toggle snippet (13 lines)
/dev/mapper/cryptroot / btrfs
rw,relatime,ssd,space_cache,subvolid=5,subvol=/
0 0
/dev/mapper/cryptguillaume /home/guillaume btrfs
rw,relatime,compress=lzo,ssd,space_cache,autodefrag,subvolid=5,subvol=/
0 0
/dev/mapper/cryptroot /gnu/store btrfs
ro,relatime,ssd,space_cache,subvolid=5,subvol=/gnu/store
0 0
Here we see that the options 'autodefrag' and 'compress=lzo' have
disappeared on the root filesystem. Maybe it has something to do with
the new '/gnu/store' subvolume that appeared?