hello

I currently have a disk of 2tb with 1.5tb partition for my current OS (fedora) and 500gb of free space. Is it possible to install NixOS via disko only on free space, without touching existing partitions?
I could format the disk by hand, but I have +- complex config, and I am afraid I couldn't reproduce it by hand (at least at first try).

In reply to @lassulus:lassul.us
you basically need to configure your existing partitons in disko (content can be null for the fedore ones) and then try to run the createScript (not the diskoScript!, as that one will wipe your drives first)

In reply to @perchun:matrix.org
well, this doesn't work
https://gist.github.com/PerchunPak/00acc9f000667c5c4dca4b8d4a6c76b0
(i am currently trying this in vm to be safe; without changes into modules/nixos/disko.nix, it gives the same result)

I did it!

[nixos@nixos:~/nixos-dotfiles]$ lsblk
NAME               MAJ:MIN RM   SIZE RO TYPE  MOUNTPOINTS
loop0                7:0    0 904.4M  1 loop  /nix/.ro-store
sr0                 11:0    1   950M  0 rom   /iso
vda                253:0    0   100G  0 disk  
├─vda1             253:1    0   500M  0 part  
├─vda2             253:2    0    10G  0 part  
├─vda3             253:3    0     1M  0 part  
├─vda4             253:4    0   500M  0 part  /mnt/boot
├─vda5             253:5    0     8G  0 part  [SWAP]
└─vda6             253:6    0    81G  0 part  
  └─encrypted      254:0    0    81G  0 crypt 
    └─root_vg-root 254:1    0    81G  0 lvm   /mnt/persist
                                              /mnt/nix
                                              /mnt

basically I [just modified script, produced by nix run ...disko... --mode disko ... --dry-run (mode is disko because format didn't create luks partition for some reason)

In reply to @perchun:matrix.org
well, this doesn't work
https://gist.github.com/PerchunPak/00acc9f000667c5c4dca4b8d4a6c76b0
(i am currently trying this in vm to be safe; without changes into modules/nixos/disko.nix, it gives the same result)

I did it!

[nixos@nixos:~/nixos-dotfiles]$ lsblk
NAME               MAJ:MIN RM   SIZE RO TYPE  MOUNTPOINTS
loop0                7:0    0 904.4M  1 loop  /nix/.ro-store
sr0                 11:0    1   950M  0 rom   /iso
vda                253:0    0   100G  0 disk  
├─vda1             253:1    0   500M  0 part  
├─vda2             253:2    0    10G  0 part  
├─vda3             253:3    0     1M  0 part  
├─vda4             253:4    0   500M  0 part  /mnt/boot
├─vda5             253:5    0     8G  0 part  [SWAP]
└─vda6             253:6    0    81G  0 part  
  └─encrypted      254:0    0    81G  0 crypt 
    └─root_vg-root 254:1    0    81G  0 lvm   /mnt/persist
                                              /mnt/nix
                                              /mnt

basically I [just modified script](https://gist.github.com/PerchunPak/94a54415887c3a0a89c00a875c4cd204), produced by nix run ...disko... --mode disko ... --dry-run (mode is disko because format didn't create luks partition for some reason)

I did it!

[nixos@nixos:~/nixos-dotfiles]$ lsblk
NAME               MAJ:MIN RM   SIZE RO TYPE  MOUNTPOINTS
loop0                7:0    0 904.4M  1 loop  /nix/.ro-store
sr0                 11:0    1   950M  0 rom   /iso
vda                253:0    0   100G  0 disk  
├─vda1             253:1    0   500M  0 part  
├─vda2             253:2    0    10G  0 part  
├─vda3             253:3    0     1M  0 part  
├─vda4             253:4    0   500M  0 part  /mnt/boot
├─vda5             253:5    0     8G  0 part  [SWAP]
└─vda6             253:6    0    81G  0 part  
  └─encrypted      254:0    0    81G  0 crypt 
    └─root_vg-root 254:1    0    81G  0 lvm   /mnt/persist
                                              /mnt/nix
                                              /mnt

basically I just modified script, produced by nix run ...disko... --mode disko ... --dry-run (mode is disko because format didn't create luks partition for some reason)