Comments (7)
dryya
commented on May 23, 2024
2
I just tested again with the same config, and couldn't reproduce the issue. I was doing it from an installed nixos though, not a live USB, which makes me wonder if that was the issue, maybe if something could have been pointing to a path on the USB's store?
I will try to test again from a USB later and report back!
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Mic92
commented on May 23, 2024
@lilyinstarlight any idea?
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Mic92
commented on May 23, 2024
Can you provide the difference in /etc/fstab? nixos-rebuild build will produce a result/ link and cat result/etc/fstab contains the mount configuration.
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lilyinstarlight
commented on May 23, 2024
@lilyinstarlight any idea?
Nope, I've no idea. Evaluating that disko.nix locally in a minimal config gives mostly the same fileSystems config so I don't know how one would be working but not the other
The only differences in the evaluated config really are the inclusion of the @snapshot subvolume in the disko-based config, the subvol= options being like subvol=/@ in the disko-based config instead of subvol=@, and the use of /dev/sdaN in the disko-based config instead of using by-uuid
None of those differences should matter afaik. In case anyone else notices something I don't, here's the evaluated config JSON from using the snippets provided:
config.fileSystems
{
"/": {
"autoFormat": false,
"autoResize": false,
"depends": [],
"device": "/dev/mapper/nixos",
"encrypted": {
"blkDev": null,
"enable": false,
"keyFile": null,
"label": null
},
"formatOptions": "",
"fsType": "btrfs",
"label": null,
"mountPoint": "/",
"neededForBoot": false,
"noCheck": false,
"options": [
"compress=zstd",
"noatime",
"subvol=/@"
]
},
"/boot": {
"autoFormat": false,
"autoResize": false,
"depends": [],
"device": "/dev/sda1",
"encrypted": {
"blkDev": null,
"enable": false,
"keyFile": null,
"label": null
},
"formatOptions": "",
"fsType": "vfat",
"label": null,
"mountPoint": "/boot",
"neededForBoot": false,
"noCheck": false,
"options": [
"defaults"
]
},
"/home": {
"autoFormat": false,
"autoResize": false,
"depends": [],
"device": "/dev/mapper/nixos",
"encrypted": {
"blkDev": null,
"enable": false,
"keyFile": null,
"label": null
},
"formatOptions": "",
"fsType": "btrfs",
"label": null,
"mountPoint": "/home",
"neededForBoot": false,
"noCheck": false,
"options": [
"compress=zstd",
"noatime",
"subvol=/@home"
]
},
"/nix": {
"autoFormat": false,
"autoResize": false,
"depends": [],
"device": "/dev/mapper/nixos",
"encrypted": {
"blkDev": null,
"enable": false,
"keyFile": null,
"label": null
},
"formatOptions": "",
"fsType": "btrfs",
"label": null,
"mountPoint": "/nix",
"neededForBoot": false,
"noCheck": false,
"options": [
"compress=zstd",
"noatime",
"subvol=/@nix"
]
},
"/snapshots": {
"autoFormat": false,
"autoResize": false,
"depends": [],
"device": "/dev/mapper/nixos",
"encrypted": {
"blkDev": null,
"enable": false,
"keyFile": null,
"label": null
},
"formatOptions": "",
"fsType": "btrfs",
"label": null,
"mountPoint": "/snapshots",
"neededForBoot": false,
"noCheck": false,
"options": [
"compress=zstd",
"noatime",
"subvol=/@snapshots"
]
},
"/swap": {
"autoFormat": false,
"autoResize": false,
"depends": [],
"device": "/dev/mapper/nixos",
"encrypted": {
"blkDev": null,
"enable": false,
"keyFile": null,
"label": null
},
"formatOptions": "",
"fsType": "btrfs",
"label": null,
"mountPoint": "/swap",
"neededForBoot": false,
"noCheck": false,
"options": [
"defaults",
"subvol=/@swap"
]
}
}config.boot.initrd.luks.devices
{
"nixos": {
"allowDiscards": false,
"bypassWorkqueues": false,
"crypttabExtraOpts": [],
"device": "/dev/sda2",
"fallbackToPassword": false,
"fido2": {
"credential": null,
"credentials": [],
"gracePeriod": 10,
"passwordLess": false
},
"gpgCard": null,
"header": null,
"keyFile": null,
"keyFileOffset": null,
"keyFileSize": null,
"name": "nixos",
"postOpenCommands": "",
"preLVM": true,
"preOpenCommands": "",
"yubikey": null
}
}from disko.
ghostbuster91
commented on May 23, 2024
I have just tested it and it works fine after updating the configuration to the latest disko release and setting .grub.enabledCryptodisk to true
Although, the btrfs swap subvolume isn't mounted automatically as swap space. After some reading it seems that one should use that subvolume to keep there the swap file. However, it is not clear to me how to make that swapfile mounted on boot, since the etc/fstab configuration is managed by the disko module.
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Lassulus
commented on May 23, 2024
I just set this in my configuration:
swapDevices = [{
device = "/swapfile";
}];
after creating the swapfile with btrfs filesystem mkswapfile -s 50g /swapfile not sure if we want declarative swapfile creating in disko? probably yes, but not sure how the interface should look like
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dryya
commented on May 23, 2024
Sorry I didn't report back on this issue for a while - I can confirm what ghostbuster said, which is that the issue seems to have been solved in the meantime, although I'm not quite sure what fixed it. And regarding the swapfile, I did exactly the same thing. Feel free to close!
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