LXD 5.0 on Ubuntu 22.04 LTS fails to start 22.04/20.04 containers

LXD
1

I have upgraded a spare i7 laptop w/32GB memory and 2TB SSD to 22.04 LTS (released version)

$ uname -a
Linux w540 5.15.0-25-generic #25-Ubuntu SMP Wed Mar 30 15:54:22 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux

$ lxd --version
5.0.0

I created an Ubuntu 22.04 LXD Container (cn1).

$ lxc ls
±---------±-------------±-------±------±------------------±------------------+
| NAME | STATE | IPV4 | IPV6 | TYPE | SNAPSHOTS |
±---------±-------------±-------±------±------------------±------------------+
| cn1 | STOPPED | | | CONTAINER | 0 |
±--------±--------------±-------±------±------------------±------------------+

$ lxc start cn1
Error: Failed to run: /snap/lxd/current/bin/lxd forkstart cn1 /var/snap/lxd/common/lxd/containers /var/snap/lxd/common/lxd/logs/cn1/lxc.conf:
Try lxc info --show-log cn1 for more info

$ lxc info --show-log cn1
Name: cn1
Status: STOPPED
Type: container
Architecture: x86_64
Created: 2022/04/07 17:26 EDT
Last Used: 2022/04/09 10:58 EDT

Log:

lxc cn1 20220409145838.109 WARN conf - conf.c:lxc_map_ids:3592 - newuidmap binary is missing
lxc cn1 20220409145838.109 WARN conf - conf.c:lxc_map_ids:3598 - newgidmap binary is missing
lxc cn1 20220409145838.110 WARN conf - conf.c:lxc_map_ids:3592 - newuidmap binary is missing
lxc cn1 20220409145838.110 WARN conf - conf.c:lxc_map_ids:3598 - newgidmap binary is missing
lxc cn1 20220409145838.203 ERROR cgfsng - cgroups/cgfsng.c:cgfsng_mount:1772 - No such file or directory - Failed to create cgroup at_mnt 24()
lxc cn1 20220409145838.203 ERROR conf - conf.c:lxc_mount_auto_mounts:851 - No such file or directory - Failed to mount "/sys/fs/cgroup"
lxc cn1 20220409145838.203 ERROR conf - conf.c:lxc_setup:4396 - Failed to setup remaining automatic mounts
lxc cn1 20220409145838.203 ERROR start - start.c:do_start:1275 - Failed to setup container "cn1"
lxc cn1 20220409145838.203 ERROR sync - sync.c:sync_wait:34 - An error occurred in another process (expected sequence number 4)
lxc cn1 20220409145838.209 WARN network - network.c:lxc_delete_network_priv:3617 - Failed to rename interface with index 0 from “eth0” to its initial name “vethd28dcbdd”
lxc cn1 20220409145838.209 ERROR lxccontainer - lxccontainer.c:wait_on_daemonized_start:877 - Received container state “ABORTING” instead of "RUNNING"
lxc cn1 20220409145838.209 ERROR start - start.c:__lxc_start:2074 - Failed to spawn container “cn1”
lxc cn1 20220409145838.209 WARN start - start.c:lxc_abort:1039 - No such process - Failed to send SIGKILL via pidfd 19 for process 4181
lxc cn1 20220409145843.315 WARN conf - conf.c:lxc_map_ids:3592 - newuidmap binary is missing
lxc cn1 20220409145843.315 WARN conf - conf.c:lxc_map_ids:3598 - newgidmap binary is missing
lxc 20220409145843.345 ERROR af_unix - af_unix.c:lxc_abstract_unix_recv_fds_iov:218 - Connection reset by peer - Failed to receive response
lxc 20220409145843.345 ERROR commands - commands.c:lxc_cmd_rsp_recv_fds:127 - Failed to receive file descriptors for command "get_state"

So there are multiple errors above? My install was all defaults.

Any ideas whats broken.

thanks.

brian

3

Hmm, not too sure what’s going on here. I’m running 22.04 on both my desktop and laptop and haven’t seen any such problem.

The error suggests either an issue with /sys/fs/cgroup on the host or missing path in the guest. Can you do ls -lh /sys/fs/cgroup on the host and try creating a container from another image (lxc launch images:alpine/edge a1 for example)?

7

resolved by completely reinstalling Ubuntu 22.04 and before restoring my 20.04 /home directory I deleted any reference to LXD on the backup then restored that backup /home to my new 22.04 install.

LXD now seems to work.