** Changed in: systemd (Ubuntu Trusty)
Assignee: (unassigned) => Rafael David Tinoco (inaddy)
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https://bugs.launchpad.net/bugs/1718966
Title:
Cannot install snaps on Ubuntu 14.04 with /var on its own partition
Status in snapd:
Confirmed
Status in systemd package in Ubuntu:
In Progress
Status in systemd source package in Trusty:
Confirmed
Bug description:
Installing snaps is not possible on Ubuntu 14.04 when having /var on
its own partition, whether its LVM or not.
The issue is with the core snap being unable to mount:
The error with /var isolated and using LVM:
root@ubuntu:~# snap install canonical-livepatch
error: cannot perform the following tasks:
- Mount snap "core" (2898) ([start snap-core-2898.mount] failed with exit
status 6: Failed to issue method call: Unit
systemd-fsck@dev-mapper-vg00\x2dvarvol.service failed to load: No such file or
directory. See system logs and 'systemctl status
systemd-fsck@dev-mapper-vg00\x2dvarvol.service' for details.
)
The error with /var isolated but without using LVM:
root@ubuntu:~# snap install canonical-livepatch
error: cannot perform the following tasks:
- Mount snap "core" (2898) ([start snap-core-2898.mount] failed with exit
status 6: Failed to issue method call: Unit
systemd-fsck@dev-disk-by\x2duuid-7383abd2\x2d019c\x2d46c2\x2d8b36\x2d34633cc8f3ca.service
failed to load: No such file or directory. See system logs and 'systemctl
status
systemd-fsck@dev-disk-by\x2duuid-7383abd2\x2d019c\x2d46c2\x2d8b36\x2d34633cc8f3ca.service'
for details.
)
The same error happens if I try to install the hello-world snap (with
LVM in this example):
root@ubuntu:~# snap install hello-world
error: cannot perform the following tasks:
- Mount snap "core" (2898) ([start snap-core-2898.mount] failed with exit
status 6: Failed to issue method call: Unit
systemd-fsck@dev-mapper-vg00\x2dvarvol.service failed to load: No such file or
directory. See system logs and 'systemctl status
systemd-fsck@dev-mapper-vg00\x2dvarvol.service' for details.
)
I cannot reproduce the issue in Ubuntu 16.04.
I couldn't reproduce this issue by using the Ubuntu 14.04 cloud image
which doesn't isolate /var on its own partition. I tried adding a
secondary disk to that cloud image VM and create a dummy VG and LV,
but couldn't reproduce the issue.
Also could not reproduce using Ubuntu 14.04 (with LVM or not) but with
only a / partition and swap.
Steps to reproduce:
===================
# Install Ubuntu 14.04 in KVM (I used the 14.04.4 server iso) and
configure /, /var and swap on their own partitions (with LVM or not,
the issue happens in both situations).
root@ubuntu:~# lvs
LV VG Attr LSize Pool Origin Data% Move Log Copy% Convert
rootvol vg00 -wi-ao--- 3.72g
swap vg00 -wi-ao--- 3.72g
varvol vg00 -wi-ao--- 3.72g
root@ubuntu:~# df -h
Filesystem Size Used Avail Use% Mounted on
udev 484M 4.0K 484M 1% /dev
tmpfs 100M 988K 99M 1% /run
/dev/dm-0 3.7G 1.7G 1.8G 49% /
none 4.0K 0 4.0K 0% /sys/fs/cgroup
none 5.0M 0 5.0M 0% /run/lock
none 497M 0 497M 0% /run/shm
none 100M 0 100M 0% /run/user
/dev/mapper/vg00-varvol 3.7G 716M 2.8G 21% /var
# Upgrade system, install snapd and reboot
root@ubuntu:~# apt update
root@ubuntu:~# apt upgrade -y
root@ubuntu:~# apt install -y snapd
root@ubuntu:~# reboot
# After reboot, check kernel version and try to install the
canonical-livepatch snap:
root@ubuntu:~# uname -a
Linux ubuntu 4.4.0-96-generic #119~14.04.1-Ubuntu SMP Wed Sep 13 08:40:48 UTC
2017 x86_64 x86_64 x86_64 GNU/Linux
root@ubuntu:~# snap list
No snaps are installed yet. Try "snap install hello-world".
root@ubuntu:~# snap install canonical-livepatch
error: cannot perform the following tasks:
- Mount snap "core" (2898) ([start snap-core-2898.mount] failed with exit
status 6: Failed to issue method call: Unit
systemd-fsck@dev-mapper-vg00\x2dvarvol.service failed to load: No such file or
directory. See system logs and 'systemctl status
systemd-fsck@dev-mapper-vg00\x2dvarvol.service' for details.
)
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