Public bug reported:
I've the following zfs:
# zfs list -r rpool/VARSHARE
NAME USED AVAIL REFER MOUNTPOINT
rpool/VARSHARE 114K 165G 30K /var/share
rpool/VARSHARE/lxc 84K 165G 19K /var/share/lxc
rpool/VARSHARE/lxc/xenial 65K 165G 19K
/var/share/lxc/xenial
rpool/VARSHARE/lxc/xenial/pkg 19K 165G 19K
/var/share/lxc/xenial/pkg
rpool/VARSHARE/lxc/xenial/rootfs-amd64 27K 165G 27K
/var/share/lxc/xenial/rootfs-amd64
On boot, we see
Starting Mount ZFS filesystems...
[FAILED] Failed to start Mount ZFS filesystems.
See 'systemctl status zfs-mount.service' for details.
Welcome to emergPress Enter for maintenance
(or press Control-D to continue):
# df -h /var/share
rpool/VARSHARE/lxc 165G 0 165G 0% /var/share/lxc
rpool/VARSHARE/lxc/xenial 165G 0 165G 0%
/var/share/lxc/xenial
rpool/VARSHARE/lxc/xenial/pkg 165G 0 165G 0%
/var/share/lxc/xenial/pkg
rpool/VARSHARE/lxc/xenial/rootfs-amd64 165G 0 165G 0%
/var/share/lxc/xenial/rootfs-amd64
Obviously rpool/VARSHARE - the parent of rpool/VARSHARE/lxc - was not mounted,
even so canmount property is for all set to on, rpool/VARSHARE's mountpoint to
/var/share and rpool/VARSHARE/lxc children inherit their mountpoint.
# systemctl status zfs-mount.service
● zfs-mount.service - Mount ZFS filesystems
Loaded: loaded (/lib/systemd/system/zfs-mount.service; static; vendor
preset: enabled)
Active: failed (Result: exit-code) since Sun 2017-05-28 04:51:46 CEST; 13min
ago
Process: 6935 ExecStart=/sbin/zfs mount -a (code=exited, status=1/FAILURE)
Main PID: 6935 (code=exited, status=1/FAILURE)
May 28 04:51:45 ares systemd[1]: Starting Mount ZFS filesystems...
May 28 04:51:45 ares zfs[6935]: cannot mount '/var/share': directory is not
empty
May 28 04:51:46 ares systemd[1]: zfs-mount.service: Main process exited,
code=exited, status=1/FAILURE
May 28 04:51:46 ares systemd[1]: Failed to start Mount ZFS filesystems.
May 28 04:51:46 ares systemd[1]: zfs-mount.service: Unit entered failed state.
May 28 04:51:46 ares systemd[1]: zfs-mount.service: Failed with result
'exit-code'.
So 'zfs mount ...' seems to be severely buggy.
** Affects: zfs-linux (Ubuntu)
Importance: Undecided
Status: New
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Packages, which is subscribed to zfs-linux in Ubuntu.
https://bugs.launchpad.net/bugs/1694090
Title:
ZoL: wrong import order prevents boot
Status in zfs-linux package in Ubuntu:
New
Bug description:
I've the following zfs:
# zfs list -r rpool/VARSHARE
NAME USED AVAIL REFER MOUNTPOINT
rpool/VARSHARE 114K 165G 30K /var/share
rpool/VARSHARE/lxc 84K 165G 19K /var/share/lxc
rpool/VARSHARE/lxc/xenial 65K 165G 19K
/var/share/lxc/xenial
rpool/VARSHARE/lxc/xenial/pkg 19K 165G 19K
/var/share/lxc/xenial/pkg
rpool/VARSHARE/lxc/xenial/rootfs-amd64 27K 165G 27K
/var/share/lxc/xenial/rootfs-amd64
On boot, we see
Starting Mount ZFS filesystems...
[FAILED] Failed to start Mount ZFS filesystems.
See 'systemctl status zfs-mount.service' for details.
Welcome to emergPress Enter for maintenance
(or press Control-D to continue):
# df -h /var/share
rpool/VARSHARE/lxc 165G 0 165G 0% /var/share/lxc
rpool/VARSHARE/lxc/xenial 165G 0 165G 0%
/var/share/lxc/xenial
rpool/VARSHARE/lxc/xenial/pkg 165G 0 165G 0%
/var/share/lxc/xenial/pkg
rpool/VARSHARE/lxc/xenial/rootfs-amd64 165G 0 165G 0%
/var/share/lxc/xenial/rootfs-amd64
Obviously rpool/VARSHARE - the parent of rpool/VARSHARE/lxc - was not
mounted, even so canmount property is for all set to on, rpool/VARSHARE's
mountpoint to /var/share and rpool/VARSHARE/lxc children inherit their
mountpoint.
# systemctl status zfs-mount.service
● zfs-mount.service - Mount ZFS filesystems
Loaded: loaded (/lib/systemd/system/zfs-mount.service; static; vendor
preset: enabled)
Active: failed (Result: exit-code) since Sun 2017-05-28 04:51:46 CEST;
13min ago
Process: 6935 ExecStart=/sbin/zfs mount -a (code=exited, status=1/FAILURE)
Main PID: 6935 (code=exited, status=1/FAILURE)
May 28 04:51:45 ares systemd[1]: Starting Mount ZFS filesystems...
May 28 04:51:45 ares zfs[6935]: cannot mount '/var/share': directory is not
empty
May 28 04:51:46 ares systemd[1]: zfs-mount.service: Main process exited,
code=exited, status=1/FAILURE
May 28 04:51:46 ares systemd[1]: Failed to start Mount ZFS filesystems.
May 28 04:51:46 ares systemd[1]: zfs-mount.service: Unit entered failed state.
May 28 04:51:46 ares systemd[1]: zfs-mount.service: Failed with result
'exit-code'.
So 'zfs mount ...' seems to be severely buggy.
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