Debian 12 CT under a debian 11 host with kernel 6.1 (LXC/LXD)?

LXC
1

Hi,
I have a Debian 11 host, using kernel 6.1.0, and I wonder if I can upgrade one of its CT from Debian 11 to Debian 12. For specific reason, I cannot upgrade the host to Debian 12.

Is that a non-sense? Or is it just an usual Debian migration for that CT ?

Is the situation different for LXC and LXD? (I know LXD have gone out of linuxcontainer.org, but we are running both LXC and LXD here).

2

That should be fine, Debian 12 should work just fine with the 6.1 kernel you’re using.

1 Like
3

Yes, that works. I just confirmed it.

root@vm-debian-11-cli:~# lsb_release -a
No LSB modules are available.
Distributor ID: Debian
Description:    Debian GNU/Linux 11 (bullseye)
Release:        11
Codename:       bullseye

root@vm-debian-11-cli:~# uname -a
Linux vm-debian-11-cli 5.10.0-25-amd64 #1 SMP Debian 5.10.191-1 (2023-08-16) x86_64 GNU/Linux

root@vm-debian-11-cli:~# lxc list
+--------+---------+------+------+-----------+-----------+
|  NAME  |  STATE  | IPV4 | IPV6 |   TYPE    | SNAPSHOTS |
+--------+---------+------+------+-----------+-----------+
| debian | RUNNING |      |      | CONTAINER | 0         |
+--------+---------+------+------+-----------+-----------+

root@vm-debian-11-cli:~# lxc config show debian
architecture: x86_64
config:
  image.architecture: amd64
  image.description: Debian bookworm amd64 (20230906_05:24)
  image.os: Debian
  image.release: bookworm
  image.serial: "20230906_05:24"
  image.type: squashfs
  image.variant: default
  security.idmap.isolated: "true"
  volatile.base_image: bd2f0e44e1b587ee25abe75065f488ee7f4d44ee5dcd1b2368ea061ccaf1654a
  volatile.cloud-init.instance-id: c737f6de-345b-46d7-a5c1-a8fedc02160f
  volatile.eth0.host_name: veth9423a596
  volatile.eth0.hwaddr: 00:16:3e:ab:ae:4c
  volatile.idmap.base: "1065536"
  volatile.idmap.current: '[{"Isuid":true,"Isgid":false,"Hostid":1065536,"Nsid":0,"Maprange":65536},{"Isuid":false,"Isgid":true,"Hostid":1065536,"Nsid":0,"Maprange":65536}]'
  volatile.idmap.next: '[{"Isuid":true,"Isgid":false,"Hostid":1065536,"Nsid":0,"Maprange":65536},{"Isuid":false,"Isgid":true,"Hostid":1065536,"Nsid":0,"Maprange":65536}]'
  volatile.last_state.idmap: '[{"Isuid":true,"Isgid":false,"Hostid":1065536,"Nsid":0,"Maprange":65536},{"Isuid":false,"Isgid":true,"Hostid":1065536,"Nsid":0,"Maprange":65536}]'
  volatile.last_state.power: RUNNING
  volatile.last_state.ready: "false"
  volatile.uuid: 76a8ffba-9b2a-4f23-8eaf-e616b406da12
  volatile.uuid.generation: 76a8ffba-9b2a-4f23-8eaf-e616b406da12
devices: {}
ephemeral: false
profiles:
- default
stateful: false
description: ""