[tom@localhost ~]$ mount | grep sda2 /dev/sda2 on / type btrfs (rw,relatime,ssd,space_cache) [tom@localhost ~]$ cat /proc/self/mountinfo | grep sda2 19 0 0:17 /arch / rw,relatime shared:1 - btrfs /dev/sda2 rw,ssd,space_cache [tom@localhost ~]$ findmnt /dev/sda2 TARGET SOURCE FSTYPE OPTIONS / /dev/sda2[/arch] btrfs rw,relatime,ssd,space_cache It won't be shown as a mount option. On 15 June 2015 at 19:28, Karel Zak <kzak@xxxxxxxxxx> wrote: > On Sun, Jun 14, 2015 at 04:50:09PM -0400, james harvey wrote: >> Not sure if this could be a linux-unionfs (btrfs) bug instead... >> >> On arch, /etc/fstab includes: >> >> /dev/sda1 /.snapshots btrfs >> rw,noatime,compress=lzo,ssd,discard,space_cache,subvol=.snapshots 0 >> 0 >> >> But mount includes: >> >> /dev/sda1 on /.snapshots type btrfs >> (rw,noatime,compress=lzo,ssd,discard,space_cache) >> >> The subvol option isn't reported in mount. > > > mount(8) uses /proc/self/mountinfo as source, do you see the subvol= > mount option there? > > (well, I guess you have system without mtab and recent util-linux.) > > Karel > > -- > Karel Zak <kzak@xxxxxxxxxx> > http://karelzak.blogspot.com > -- > To unsubscribe from this list: send the line "unsubscribe util-linux" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe util-linux" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html