canonical-livepatch failing to enable

[Adam Chou]

I'm trying to enable canonical-livepatch but I keep getting an error about the freezer cgroup. See below:

$ uname -a
Linux laptop-ubuntu 4.15.0-29-generic #31-Ubuntu SMP Tue Jul 17 15:39:52 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 18.04.1 LTS
Release: 18.04
Codename: bionic

$ sudo snap remove canonical-livepatch
canonical-livepatch removed

$ sudo snap install canonical-livepatch
canonical-livepatch 8.0.2 from 'canonical' installed

$ sudo canonical-livepatch enable REDACTED
cannot open freezer cgroup (/sys/fs/cgroup/freezer): No such file or directory

[Ryan Bach (romulasry)]

This is the error I get on 20.04, with focal proposed enabled:

Failed to enable Livepatch: ('Connection aborted.', FileNotFoundError(2, 'No such file or directory'))

[Yotam Benshalom (benshalom)]

I get the same error message with 20.04 whenever I try to activate livepatch.

[Casey Marshall (cmars)]

Canonical Live Patch Client bug reporting guidelines:
Please include the output from the following commands in your report as plain text.

snap info canonical-livepatch
canonical-livepatch status --verbose
lsb_release -a
uname -a
journalctl -t canonical-livepatch
snap interfaces
dmesg

[James E Grimes Jr (wmtjames)]

I'm getting this on Ubuntu 20.04. I'm attaching the screenshot of the error message.

[Domas Monkus (tasdomas)]

This looks like a snapd problem.

[Zygmunt Krynicki (zyga)]

Hello.

Could the reporter please explain their system customization a little? The freezer cgroup is mounted by default in all versions of Ubuntu. Is this perhaps running in a unified cgroupv2 mode?

What is the output of:

cat /proc/self/mountinfo

cat /proc/cmdline

[Launchpad Janitor (janitor)]

[Expired for snapd because there has been no activity for 60 days.]