!VhzbGHamdfMiGxpXyg:robins.wtf

NixOS Incus and LXC

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lxc, lxd, incus discussions related to NixOS19 Servers

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1 Apr 2026
@adam:robins.wtfadamcstephenshttps://github.com/lxc/incus/issues/2956#issuecomment-417307665021:37:17
@tom:dragar.deTomYeah, that's good to hear :)22:24:56
2 Apr 2026
@adam:robins.wtfadamcstephensyeah, i hope they find something to swap out before 7.017:22:32
3 Apr 2026
@silverhadch07:matrix.orgHadi 🤒 changed their display name from Hadi Chokr to Hadi.17:50:16
6 Apr 2026
@tom:dragar.deTom There is now a virtualisation.incus.useACMEHost option. :) 09:53:31
@flx-:matrix.orgflx joined the room.20:15:06
20 Apr 2026
@tom:dragar.deTomi'm getting more worried by the day 🫠21:58:49
22 Apr 2026
@silverhadch07:matrix.orgHadi 🤒 changed their display name from Hadi to Hadi 🤒.18:11:32
23 Apr 2026
@tom:dragar.deTomhttps://github.com/lxc/incus/issues/316118:00:10
@tom:dragar.deTomnot too wild18:00:39
@tom:dragar.deTom* not too wild for now18:00:59
25 Apr 2026
@hexa:lossy.networkhexahttps://discuss.linuxcontainers.org/t/what-happened-to-the-nixos-images/26596/109:21:10
@hexa:lossy.networkhexahttps://jenkins.linuxcontainers.org/view/Images/job/image-nixos/09:21:49
@tom:dragar.deTomhttps://discuss.linuxcontainers.org/t/what-happened-to-the-nixos-images/26596/217:12:43
@adam:robins.wtfadamcstephenssigh17:53:59
@adam:robins.wtfadamcstephensi follow the image failures, but this is the first time we've triggered this test job failure. which unfortunately is mixed with all images so can't be tracked by rss17:55:32
@adam:robins.wtfadamcstephens===> FAIL: systemd clean: test-image-4ErzRs-unpriv ===> DEBUG: systemd failed: test-image-4ErzRs-unpriv UNIT LOAD ACTIVE SUB DESCRIPTION ● nix-channel-init.service loaded failed failed Initialize NixOS Channel Legend: LOAD → Reflects whether the unit definition was properly loaded. ACTIVE → The high-level unit activation state, i.e. generalization of SUB. SUB → The low-level unit activation state, values depend on unit type. 1 loaded units listed.17:56:12
@adam:robins.wtfadamcstephens *
===> FAIL: systemd clean: test-image-4ErzRs-unpriv
===> DEBUG: systemd failed: test-image-4ErzRs-unpriv
  UNIT                     LOAD   ACTIVE SUB    DESCRIPTION
● nix-channel-init.service loaded failed failed Initialize NixOS Channel

Legend: LOAD   → Reflects whether the unit definition was properly loaded.
        ACTIVE → The high-level unit activation state, i.e. generalization of SUB.
        SUB    → The low-level unit activation state, values depend on unit type.

1 loaded units listed.
17:56:26
@hexa:lossy.networkhexaamazing, how as a maintainer you find out via the forums17:57:41
@hexa:lossy.networkhexaand only after removal17:57:51
@adam:robins.wtfadamcstephensi've silently complained about this "publish within 10 days or your images are gone" to myself before17:58:28
@adam:robins.wtfadamcstephense.g. when the downloads were getting blocked by hydra17:58:53
@tom:dragar.deTomYeah, that's like an order of magnitude too low18:08:28
@adam:robins.wtfadamcstephens
𑁱 nix-build ./nixos/release.nix --attr incusContainerMeta --attr incusContainerImage --arg supportedSystems '["x86_64-linux"]'
/nix/store/fkw4c0h4mmkangllkaqcs3vjzp03bizl-tarball
/nix/store/fg0a6klhgc7ainws189yh1llcaplbv28-nixos-lxc-image-x86_64-linux

𑁱 incus image import --alias nixos/manual ./result/tarball/nixos-image-lxc-26.05pre708350.gfedcba-x86_64-linux.tar.xz ./result-2/nixos-lxc-image-x86_64-linux.squashfs
Image imported with fingerprint: 81e4e80d471b9fed3ebca2f2a2d05b1e01e7ef5aecf82d576a037f0396eac38f

𑁱 incus launch --ephemeral nixos/manual
Launching the instance
Instance name is: valid-goose

𑁱 incus shell valid-goose

[root@nixos:~]# journalctl --no-pager -eu nix-channel-init.service
Apr 25 18:12:46 nixos systemd[1]: Starting Initialize NixOS Channel...
Apr 25 18:12:46 nixos nix-channel-init-start[350]: unpacking the NixOS/Nixpkgs sources...
Apr 25 18:12:46 nixos nix-channel-init-start[373]: ln: failed to create symbolic link '/root/.nix-defexpr/channels/channels': Read-only file system
Apr 25 18:12:46 nixos systemd[1]: nix-channel-init.service: Main process exited, code=exited, status=1/FAILURE
Apr 25 18:12:46 nixos systemd[1]: nix-channel-init.service: Failed with result 'exit-code'.
Apr 25 18:12:46 nixos systemd[1]: Failed to start Initialize NixOS Channel.

18:14:23
@adam:robins.wtfadamcstephensoh, fun. the 25.11 images having been passing because they're unaffected by that issue. but they got purged anyway18:43:28
@adam:robins.wtfadamcstephensthis is the offending PR https://github.com/NixOS/nixpkgs/pull/49685218:56:25
@adam:robins.wtfadamcstephensi did approve it, but we also don't test the channel stuff currently since it makes iteration on the incus tests very slow, so it wasn't caught by the tests18:57:17
@adam:robins.wtfadamcstephenstypical symlink args gotcha19:32:18
@adam:robins.wtfadamcstephenshttps://github.com/NixOS/nixpkgs/pull/51344120:01:28
@tom:dragar.deTomstgraber seems to be quite opposed to extend the 10 day ttl :/21:42:09

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