| 24 Mar 2025 |
 sboe | I figured this out!
of course disko doesn't set usage limits on the subvolumes
and apparently I can't manually make my own swapfile on btrfs because chattr doesn't work.
But btrfs has a subcommand to make swapfiles!
This fixed my issue!
sudo btrfs filesystem mkswapfile --size 16G /.swapvol/swapfile
| 18:23:19 |
|  food style edible product changed their display name from I won't be a human battery to Meat Robot. | 21:34:28 |
| 25 Mar 2025 |
| sboe | Can disko be used to create new additional btrfs subvolumes? Or do I need to manually create them and add them to my disko config? | 09:58:36 |
 SigmaSquadron | The latter, unfortunately. Disko can only alter your disks if you run disko format, which will wipe them as well. | 10:05:28 |
| sboe | Thank you, is there any consideration I have to take when making subvolumes? I'd like it to be consistent with how disko makes it
"/snapshots" = {
mountpoint = "/snapshots";
mountOptions = [ "compress=zstd" "noatime" ];
};
When I sudo btrfs subvolume list /home -t I notice that there are no slashes in the path name
ID gen top level path
-- --- --------- ----
256 87522 5 home
257 87348 5 nix
258 87522 5 persist
259 87283 5 swap
| 10:08:55 |
 Marie | are you sure? It doesn't do that for zfs from my experience | 11:27:44 |
| SigmaSquadron | I wiped my disk entire once when I tried to remove a subvolume. I assume the same happens when you add one. | 11:28:39 |
| SigmaSquadron | * I wiped my disk entire once when I tried to remove a subvolume with disko. I assume the same happens when you add one. | 11:28:51 |
| SigmaSquadron | but hey, only one way to find out. | 11:29:07 |
| sboe | Thanks, don't want to try this, the explanation of format isn't very clear on if it will destroy anything | 12:40:23 |
| Marie changed their display name from Marie to Marie Ramlow. | 17:42:21 |
| Marie changed their display name from Marie Ramlow to Marie. | 17:44:49 |
| 26 Mar 2025 |
 phaer | Was that recently or a while ago? | 09:27:52 |
| phaer | I wouldn't recommend you to try without a backup :)
That being said, it shouldn't nowadays. You can also proof-read the generated script by building nix build .#nixosConfigurations.<host>.config.system.build.formatScript and reading the result | 09:32:15 |
| SigmaSquadron | In reply to @phaer:matrix.org
Was that recently or a while ago? three months ago | 10:11:48 |
 matthewcroughan | Anyone got a zfs luks example I can copy? | 17:49:43 |
| Marie | https://github.com/NyCodeGHG/dotfiles/blob/28111240f3f2d0e07150712452cbacf919d31692/hosts/marie-nas/disko.nix | 17:50:29 |
| matthewcroughan | Ah nice, a big esp | 17:54:02 |
| matthewcroughan | I might need a big ESP too for lanzaboote | 17:54:03 |
| matthewcroughan | Are you also doing lanzaboote Marie ? | 17:54:15 |
| matthewcroughan | I see you use restic, I haven't looked into backups too much so maybe I'll give that a try | 17:55:01 |
| Marie | nope | 17:55:11 |
| Marie | futureproofing™ | 17:55:52 |
| Marie | had to increase my ESP once, wasn't very fun | 17:56:10 |
| matthewcroughan | I like your ashift 12 | 17:57:16 |
| matthewcroughan | that's for SSD right? | 17:57:21 |
| Marie | both pools have it | 17:57:57 |
| matthewcroughan | What's the idea behind naming the dataset local/ | 17:58:21 |
| matthewcroughan | since this dataset can never not be local | 17:58:32 |
| Marie | local = unimportant stuff which doesn't need backups | 17:58:48 |
