Unable to *RE*-install lxd on debian 12

LXD
1

I uninstalled lxd a few weeks ago and I tried re-installing it now but it fails on lxd init with the following message:

$sudo lxd init
Would you like to use LXD clustering? (yes/no) [default=no]: 
Do you want to configure a new storage pool? (yes/no) [default=yes]: 
Name of the new storage pool [default=default]: 
Name of the storage backend to use (dir, lvm) [default=dir]: 
Would you like to connect to a MAAS server? (yes/no) [default=no]: 
Would you like to create a new local network bridge? (yes/no) [default=yes]: 
What should the new bridge be called? [default=lxdbr0]: 
What IPv4 address should be used? (CIDR subnet notation, “auto” or “none”) [default=auto]: 
What IPv6 address should be used? (CIDR subnet notation, “auto” or “none”) [default=auto]: 
Would you like the LXD server to be available over the network? (yes/no) [default=no]: 
Would you like stale cached images to be updated automatically? (yes/no) [default=yes]: no
Would you like a YAML "lxd init" preseed to be printed? (yes/no) [default=no]: 
Error: Failed to create local member network "lxdbr0" in project "default": Failed to setup firewall: Failed adding outbound NAT rules for network "lxdbr0" (inet): Failed apply nftables config: Failed to run: nft -f -: exit status 1 (/dev/stdin:4:7-9: Error: No such file or directory; did you mean chain ‘pstrt.lxdbr0’ in table inet ‘lxd’?
	type nat hook postrouting priority 100; policy accept;
	     ^^^
/dev/stdin:3:7-18: Error: Could not process rule: No such file or directory
chain pstrt.lxdbr0 {
      ^^^^^^^^^^^^
/dev/stdin:3:7-18: Error: Could not process rule: No such file or directory
chain pstrt.lxdbr0 {
      ^^^^^^^^^^^^)

I tried giving a different name to the bridge device (lxdbr1) and the same error happen.

I’m running the current debian 12 lxd package (5.0.2) and I have nftables installed ($ whereis nft nft: /usr/sbin/nft /usr/share/man/man8/nft.8.gz).

Here is the output of lxc warning ls:

+--------------------------------------+------------------------------------------------------+--------+----------+-------+---------+------------------------------+
|                 UUID                 |                         TYPE                         | STATUS | SEVERITY | COUNT | PROJECT |          LAST SEEN           |
+--------------------------------------+------------------------------------------------------+--------+----------+-------+---------+------------------------------+
| 327760d1-87bb-4904-a8ec-8676c94456f3 | Couldn't find the CGroup network priority controller | NEW    | LOW      | 1     |         | May 15, 2023 at 3:41am (UTC) |
+--------------------------------------+------------------------------------------------------+--------+----------+-------+---------+------------------------------+
| feae225a-6e1c-4db4-b17c-e96d8aec2ed1 | Couldn't find the CGroup hugetlb controller          | NEW    | LOW      | 1     |         | May 15, 2023 at 3:41am (UTC) |
+--------------------------------------+------------------------------------------------------+--------+----------+-------+---------+------------------------------+

Any idea how I can get lxd to work again?

Thanks!

2

What kernel version are you running?

I suspect you are missing the sufficient kernel modules for nftables to work with inet table types.

Or you’re missing the nat support for nftables.

3

Thanks for the follow up Thomas. The issue is fixed now and my guess is that it was a broken kernel update that interfered with kernel modules.

For anyone that landed here through a search engine, here is what I did:

  • booted using the previous kernel and test lxd (it was working fine)
  • re-installed the most recent kernel, booted again using the re-installed kernel and lxd was working fine
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