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disko

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disko - declarative disk partitioning - https://github.com/nix-community/disko93 Servers

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13 Mar 2025
@waltmck:matrix.orgwaltmck * in my disko config the drives are referred to as /dev/disk/by-id identifiers, so I want to make sure that there is no hard-coded fstab entry or anything that uses those 16:00:27
@disco_stick:matrix.orgfood style edible product changed their display name from KFC is All I See to That's "Mr. Anarchist" to you.17:48:08
14 Mar 2025
@phaer:matrix.orgphaerIn a typical zfs setup, fstab doesn't reference the underlying devices but only the datasets (i.e. rpool/root, not /dev/disk/by-id/...) here. the initrd pretty much does a zpool import on boot, so you should be good after zpool replace. (but no warranty and all ;))15:46:25
@phaer:matrix.orgphaer* In a typical zfs setup, fstab doesn't reference the underlying devices but only the datasets (i.e. rpool/root, not /dev/disk/by-id/...) here. the initrd pretty much does a zpool import on boot, so you should be good after zpool replace. (but no warranty as usual ;))15:46:32
@waltmck:matrix.orgwaltmckI see. So I understand that it works roughly like: ZFS scans all storage devices for zfs disks, and then makes the pools it finds available which can be referred to by name in the legacy mount scripts?15:48:01
@phaer:matrix.orgphaerYes, exactly15:48:34
@phaer:matrix.orgphaer Had missed that one before: but that's exactly how it is. It should be safe to re-run but as the license says: this software comes without warranty of any kind. So better check your backups ;) 15:51:09
@phaer:matrix.orgphaerNot a btrfs user myself, but the conflicting definitions do sound solvable. Do you have your config online somewhere? 15:55:08
16 Mar 2025
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17 Mar 2025
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18 Mar 2025
@matthewcroughan:defenestrate.itmatthewcroughan Any opposition to renaming installTest to diskoInstallTest ? 18:06:55
@matthewcroughan:defenestrate.itmatthewcroughan or in putting disko attrs into a disko set? like system.config.build.disko.installTest? 18:07:23
@matthewcroughan:defenestrate.itmatthewcroughan It has always annoyed me when trying to find installTest, because I ignore this attribute believing it to be a nixpkgs one, not realising disko introduced it 18:07:48
@matthewcroughan:defenestrate.itmatthewcroughan
[root@nixos:/home/nixos/nixcfg]# nix run .#nixosConfigurations.p4.config.system.build.diskoScript
warning: Git tree '/home/nixos/nixcfg' is dirty
error: unable to execute '/nix/store/i1v0hbscb3m3bib3f90dsm479d6aisk8-disko/bin/disko': Not a directory
18:36:34
@matthewcroughan:defenestrate.itmatthewcroughanDid not realise before that the disko script was not runnable 18:36:41
19 Mar 2025
@erahhal:homefree.hosterahhal joined the room.03:05:37
@erahhal:homefree.hosterahhal

Hi! I've used disko with nixos-anywhere on a few machines and now on a newer machine having some trouble. Not sure if I broken something in the config or something changed out since NixOS has been bumped since then. I'm seeing this error and no idea what it means:

error: flake 'git+file:///home/erahhal/Code/nixcfg' does not provide attribute 'packages.x86_64-linux.nixosConfigurations."msi-linux".config.system.build.diskoScript', 'legacyPackages.x86_64-linux.nixosConfigurations."msi-linux".config.system.build.diskoScript' or 'nixosConfigurations."msi-linux".config.system.build.diskoScript'

Does it mean that it can't find the disk device so it's not able to build a script? Perhaps I've provided the wrong device? I triple checked it though and it seems to be correct.

03:09:45
@enzime:nixos.devEnzime if you open nix repl ~/Code/nixcfg then type in nixosConfigurations.msi-linux.config.system.build.toplevel 03:13:26
@enzime:nixos.devEnzime what happens? 03:13:34
@erahhal:homefree.hosterahhalSays it's missing. I must have a typo in my root flake? Looking03:15:22
@erahhal:homefree.hosterahhalUgh, I put the host config one level too high in the scope. Surprised the it didn't cause problems when I tried building other machines that are also defined in the flake03:16:51
@erahhal:homefree.hosterahhalthank you!03:16:52
@erahhal:homefree.hosterahhalI need to get more familiar with using the repl03:17:13
@erahhal:homefree.hosterahhal Ok, another question, so I installed to a second drive. The first drive has windows. I'm going to change the boot order so that the linux drive is first. The problem is that it didn't register the drive with the boot manager. I had to manually run efibootmgr -c etc etc etc. Is there a way to make sure the second drive gets registered with the boot manager? 04:42:45
@erahhal:homefree.hosterahhalThough actually, it's still not showing up in the BIOS boot options. Guess that wasn't enough04:44:01
@erahhal:homefree.hosterahhalI'm guessing some extra config is necessary to get it to install a fully bootable system on a second drive?04:44:25

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