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Add steps in install documentation

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Rodrigo Arias 2023-04-27 16:36:48 +02:00
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doc/install.md Normal file
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# Installing NixOS in a new node
This article shows the steps to install NixOS in a node following the
configuration of the repo.
## Prepare the disk
Create a main partition and label it `nixos` following [the manual][1].
[1]: https://nixos.org/manual/nixos/stable/index.html#sec-installation-manual-partitioning.
```
# disk=/dev/sdX
# parted $disk -- mklabel msdos
# parted $disk -- mkpart primary 1MB 100%
# parted $disk -- set 1 boot on
```
Then create an etx4 filesystem, labeled `nixos` where the system will be
installed. **Ensure that no other partition has the same label.**
```
# mkfs.ext4 -L nixos "${disk}1"
# mount ${disk}1 /mnt
# lsblk -f $disk
NAME FSTYPE LABEL UUID MOUNTPOINT
sdX
`-sdX1 ext4 nixos 10d73b75-809c-4fa3-b99d-4fab2f0d0d8e /mnt
```
## Prepare nix and nixos-install
Mount the nix store from the xeon07 node in read-only /nix.
```
# mkdir /nix
# mount -o ro xeon07:/nix /nix
```
Get the nix binary and nixos-install tool from xeon07:
```
# ssh xeon07 'readlink -f $(which nix)'
/nix/store/0sxbaj71c4c4n43qhdxm31f56gjalksw-nix-2.13.3/bin/nix
# ssh xeon07 'readlink -f $(which nixos-install)'
/nix/store/9yq8ps06ysr2pfiwiij39ny56yk3pdcs-nixos-install/bin/nixos-install
```
And add them to the PATH:
```
# export PATH=$PATH:/nix/store/0sxbaj71c4c4n43qhdxm31f56gjalksw-nix-2.13.3/bin
# export PATH=$PATH:/nix/store/9yq8ps06ysr2pfiwiij39ny56yk3pdcs-nixos-install/bin/
# nix --version
nix (Nix) 2.13.3
```
## Build the nixos kexec image
```
# nix build .#nixosConfigurations.xeon02.config.system.build.kexecTree -v
```

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xeon02/configuration.nix
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{ config, pkgs, modulesPath, lib, ... }:
{
imports = [ ../common/main.nix (modulesPath + "/installer/netboot/netboot-minimal.nix") ];
imports = [
#(modulesPath + "/installer/netboot/netboot-minimal.nix")
../common/main.nix
];
# Select the this using the ID to avoid mismatches
boot.loader.grub.device = "/dev/disk/by-id/wwn-0x55cd2e414d535629";
#programs.ssh.forwardX11 = false;
programs.ssh.setXAuthLocation = lib.mkForce true;
#programs.ssh.setXAuthLocation = lib.mkForce true;
networking = {
hostName = "xeon02";