[SOLVED] Ubuntu 24.04 not supported??

[Hellman_x]

I updated one of my guest VMs just to keep it up-to-date and now i've discovered that proxmox can't handle Ubuntu 24.04?

What now? Is there a way to roll back the update?

 

[gurubert]

Why would a virtualized Ubuntu 24.04 not be supported by KVM / Proxmox?

If you made a snapshot of the VM before the upgrade you could roll back to it.

 

[t.lamprecht]

Yeah, recent Ubuntu 24.04 works just fine here in both virtual machines and containers.

Maybe post more details w.r.t. what the error is and also the full guest config.

 

[Hellman_x]

Yeah, recent Ubuntu 24.04 works just fine here in both virtual machines and containers.

Maybe post more details w.r.t. what the error is and also the full guest config.

Sure,

Task Viewer output:

run_buffer: 571 Script exited with status 255
lxc_init: 845 Failed to run lxc.hook.pre-start for container "105"
__lxc_start: 2034 Failed to initialize container "105"
TASK ERROR: startup for container '105' failed

Shell debug:

root@prox:~# pct start 105 --debug
run_buffer: 571 Script exited with status 255
lxc_init: 845 Failed to run lxc.hook.pre-start for container "105"
__lxc_start: 2034 Failed to initialize container "105"
0 hostid 100000 range 65536
INFO     lsm - ../src/lxc/lsm/lsm.c:lsm_init_static:38 - Initialized LSM security driver AppArmor
INFO     utils - ../src/lxc/utils.c:run_script_argv:587 - Executing script "/usr/share/lxc/hooks/lxc-pve-prestart-hook" for container "105", config section "lxc"
DEBUG    utils - ../src/lxc/utils.c:run_buffer:560 - Script exec /usr/share/lxc/hooks/lxc-pve-prestart-hook 105 lxc pre-start produced output: unsupported Ubuntu version '24.04'

ERROR    utils - ../src/lxc/utils.c:run_buffer:571 - Script exited with status 255
ERROR    start - ../src/lxc/start.c:lxc_init:845 - Failed to run lxc.hook.pre-start for container "105"
ERROR    start - ../src/lxc/start.c:__lxc_start:2034 - Failed to initialize container "105"
INFO     utils - ../src/lxc/utils.c:run_script_argv:587 - Executing script "/usr/share/lxc/hooks/lxc-pve-poststop-hook" for container "105", config section "lxc"
startup for container '105' failed

 

[leesteken]

That's what Proxmox calls a container and not a VM. Did you update your Proxmox to the latest 8.2 version?
I think PVE 7 does not support Ubuntu 24.04 containers (and is out of support by Proxmox), so you better use a VM.

EDIT: You also need to enable nesting (which is the new default): https://forum.proxmox.com/threads/privileged-ubuntu-ct-wont-start.153207/#post-696092

 

[Hellman_x]

That's what Proxmox calls a container and not a VM. Did you update your Proxmox to the latest 8.2 version?
I think PVE 7 does not support Ubuntu 24.04 containers (and is out of support by Proxmox), so you better use a VM.

Linux prox 6.2.16-3-pve #1 SMP PREEMPT_DYNAMIC PVE 6.2.16-3 (2023-06-17T05:58Z) x86_64
Is my current version. If I run an apt update & upgrade I won't receive any more updates.

I noticed 8.0.3 at the top left, so I guess I'm not up to date somehow.

 

[leesteken]

If I run an apt update & upgrade I won't receive any more updates.

I noticed 8.0.3 at the top left, so I guess I'm not up to date somehow.

Please use the documentation (and search the forum about common update problems): https://pve.proxmox.com/pve-docs/pve-admin-guide.html#sysadmin_package_repositories

 

[Hellman_x]

Please use the documentation (and search the forum about common update problems): https://pve.proxmox.com/pve-docs/pve-admin-guide.html#sysadmin_package_repositories

Thank you for pointing me to the 3.2 section in the documentation. I was missing apt-get dist-upgrade