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disko

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

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7 Apr 2024
@lassulus:lassul.uslassulusI will prepare a commit10:12:02
@lassulus:lassul.uslassulusgive me 5min10:12:04
@perchun:matrix.orgPerchun Pak I already did everything with my disk, it is not a blocker for me 10:12:38
@perchun:matrix.orgPerchun Pak * I already did everything with my disk, it is not a problem for me 10:12:47
@perchun:matrix.orgPerchun Pak Just a thing I noticed  10:12:59
@xxxcrow:matrix.orgn3v3r_a9a1nhalo! has anyone achieved disko + nixos-anywhere + impermanence btrfs? (+sops) 10:13:01
@perchun:matrix.orgPerchun Pak
In reply to @xxxcrow:matrix.org
halo!
has anyone achieved disko + nixos-anywhere + impermanence btrfs? (+sops)
Vimjoyer did config for btrfs + impermanence, don't know about other things 
https://youtu.be/YPKwkWtK7l0?feature=shared 		10:14:30
@lassulus:lassul.uslassulushmm, indeed weird, that sgdisk exists with 0 on an error10:20:57
@xxxcrow:matrix.orgn3v3r_a9a1n
In reply to @perchun:matrix.org
Vimjoyer did config for btrfs + impermanence, don't know about other things 
https://youtu.be/YPKwkWtK7l0?feature=shared

disko has gone crazy, or me?

                content = {
                  type = "btrfs";
                  extraArgs = ["-f"];
                  subvolumes = {
                    "/root" = {
                      mountpoint = "/";
                      mountOptions = ["compress=zstd" "noatime"];
                    };

mounts / in /root

10:34:06
@perchun:matrix.orgPerchun Pak
In reply to @xxxcrow:matrix.org

disko has gone crazy, or me?

                content = {
                  type = "btrfs";
                  extraArgs = ["-f"];
                  subvolumes = {
                    "/root" = {
                      mountpoint = "/";
                      mountOptions = ["compress=zstd" "noatime"];
                    };

mounts / in /root

It backups all your data on every reboot. I can show you the folder structure when I arrive home
10:35:16
@xxxcrow:matrix.orgn3v3r_a9a1nso, i can find all the stuff in /root directory10:35:16
@xxxcrow:matrix.orgn3v3r_a9a1n
In reply to @perchun:matrix.org
It backups all your data on every reboot. I can show you the folder structure when I arrive home
i mean, it's not even that much of impermanence, but really about disko 		10:36:14
@xxxcrow:matrix.orgn3v3r_a9a1n

ok, this is the drive:

            luks = {
              size = "100%";
              content = {
                type = "luks";
                name = "nvme-crypt";
                # disable settings.keyFile if you want to use interactive password entry
                #passwordFile = "/tmp/secret.key"; # Interactive
                settings = {
                  allowDiscards = true;
                  #keyFile = "/tmp/secret.key";
                };
                #additionalKeyFiles = ["/tmp/additionalSecret.key"];
                content = {
                  type = "btrfs";
                  extraArgs = ["-f"];
                  subvolumes = {
                    "/root" = {
                      mountpoint = "/";
                      mountOptions = ["compress=zstd" "noatime"];
                    };
                    "/home" = {
                      mountpoint = "/home";
                      mountOptions = ["compress=zstd" "noatime"];
                    };
                    "/nix" = {
                      mountpoint = "/nix";
                      mountOptions = ["compress=zstd" "noatime"];
                    };
                    "/persist" = {
                      mountpoint = "/persist";
                      mountOptions = ["compress=zstd" "noatime"];
                    };
                    "/log" = {
                      mountpoint = "/var/log";
                      mountOptions = ["compress=zstd" "noatime"];
                    };
                    "/swap" = {
                      mountpoint = "/.swapvol";
                      swap.swapfile.size = "8G";
                    };
                  };
                };
              };
            };
          };
        };
      };
10:36:46
@perchun:matrix.orgPerchun Pak When you're booted into the system, root is in /. When you mount the disk, structure is something like
```
- nix/store
- old_roots
 - $(date) # older than 30d are automatically deleted
- root
- and some fourth folder name of which I completely forgot
``` 		10:37:23
@perchun:matrix.orgPerchun Pak Fourth is persist 10:38:10
@perchun:matrix.orgPerchun Pak Btw, here is how you can use it with luks
https://gist.github.com/PerchunPak/0df4fa9117dfb036b0564a9f058f539c 		10:39:49
@xxxcrow:matrix.orgn3v3r_a9a1n
In reply to @xxxcrow:matrix.org

ok, this is the drive:

            luks = {
              size = "100%";
              content = {
                type = "luks";
                name = "nvme-crypt";
                # disable settings.keyFile if you want to use interactive password entry
                #passwordFile = "/tmp/secret.key"; # Interactive
                settings = {
                  allowDiscards = true;
                  #keyFile = "/tmp/secret.key";
                };
                #additionalKeyFiles = ["/tmp/additionalSecret.key"];
                content = {
                  type = "btrfs";
                  extraArgs = ["-f"];
                  subvolumes = {
                    "/root" = {
                      mountpoint = "/";
                      mountOptions = ["compress=zstd" "noatime"];
                    };
                    "/home" = {
                      mountpoint = "/home";
                      mountOptions = ["compress=zstd" "noatime"];
                    };
                    "/nix" = {
                      mountpoint = "/nix";
                      mountOptions = ["compress=zstd" "noatime"];
                    };
                    "/persist" = {
                      mountpoint = "/persist";
                      mountOptions = ["compress=zstd" "noatime"];
                    };
                    "/log" = {
                      mountpoint = "/var/log";
                      mountOptions = ["compress=zstd" "noatime"];
                    };
                    "/swap" = {
                      mountpoint = "/.swapvol";
                      swap.swapfile.size = "8G";
                    };
                  };
                };
              };
            };
          };
        };
      };
ok, what do you thing the result of this would be? 		10:42:22
@xxxcrow:matrix.orgn3v3r_a9a1n

i do:
nix run github:nix-community/nixos-anywhere -- --flake .#immortal root@192.168.1.100 --no-reboot

10:44:32
@xxxcrow:matrix.orgn3v3r_a9a1nthen mount /dev/mapper/nvme-crypt /mnt10:44:50
@xxxcrow:matrix.orgn3v3r_a9a1n 
[root@nixos:~]# ls /mnt/
home  log  nix  persist  root  swap

[root@nixos:~]# ls /mnt/root
bin  boot  dev  etc  home  lib  lib64  nix  persist  proc  root  run  srv  sys  tmp  usr  var

[root@nixos:~]# btrfs subvolume list /mnt
ID 256 gen 29 top level 5 path home
ID 257 gen 33 top level 5 path log
ID 258 gen 33 top level 5 path nix
ID 259 gen 29 top level 5 path persist
ID 260 gen 36 top level 5 path root
ID 261 gen 18 top level 5 path swap
ID 262 gen 29 top level 260 path root/srv
ID 263 gen 30 top level 260 path root/var/lib/portables
ID 264 gen 31 top level 260 path root/var/lib/machines
ID 265 gen 33 top level 260 path root/var/tmp
10:47:53
@xxxcrow:matrix.orgn3v3r_a9a1n
In reply to @xxxcrow:matrix.org
then mount /dev/mapper/nvme-crypt /mnt
or i shouldn't do it at all? 		10:50:02
@lassulus:lassul.uslassulus Perchun Pak: I created this PR to fix the gpt behaviour: https://github.com/nix-community/disko/pull/595 10:51:22
@xxxcrow:matrix.orgn3v3r_a9a1n
In reply to @xxxcrow:matrix.org
or i shouldn't do it at all?
if i mount the way tutorials on impermanence+btrfs say, everything looks fine,but how do i take the snapshot 		10:54:15
@xxxcrow:matrix.orgn3v3r_a9a1n
In reply to @perchun:matrix.org
Vimjoyer did config for btrfs + impermanence, don't know about other things 
https://youtu.be/YPKwkWtK7l0?feature=shared
also, sorry if it's not true, but i think the way way he implements everything is not really ok
1st. https://discourse.nixos.org/t/what-does-impermanence-add-over-built-in-functionality/27939/16
2nd. it doesn't work with some stuff (can't remember what exactly either lanzaboote, or clevis, or something like that)
3rd. something else i forgot exactly what 		11:22:11
@perchun:matrix.orgPerchun Pak
In reply to @xxxcrow:matrix.org
also, sorry if it's not true, but i think the way way he implements everything is not really ok
1st. https://discourse.nixos.org/t/what-does-impermanence-add-over-built-in-functionality/27939/16
2nd. it doesn't work with some stuff (can't remember what exactly either lanzaboote, or clevis, or something like that)
3rd. something else i forgot exactly what
Yeah, it deleted all of my data if there wasn't something correct in the setup. Like no /persist/system or wrong permissions on /persist/home (in second scenario, home manager just failed to start completely). Though it is probably the fault of impermanence.

But for now, it works on my machine™. Feel free to send your final setup, I will happily steal it ;) 		11:57:22
@lassulus:lassul.uslassuluswhoops, I accidently ran sgdisk -o isntead -p on my main disk :D12:52:35
@lassulus:lassul.uslassulusluckily I could recover it with disko12:52:46
@lassulus:lassul.uslassulusbut why are those 2 parameters (-p pronts, -o wipes) so close together on the keyboard :D12:53:07
@lassulus:lassul.uslassulus * but why are those 2 parameters (-p prints, -o wipes) so close together on the keyboard :D12:53:14
@xxxcrow:matrix.orgn3v3r_a9a1n Quick questiono about disko and nixos-anywhere!
How do I skip disko in nixos-anywhere? 		16:01:36

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