improve install instructions

README.md

@@ -7,8 +7,21 @@ Mostly focusing on setting things up on NixOS, but supporting other OSes where p
 2. change password for the default user `nixos`
 3. ssh from another, already bootstrapped, machine
 
-remote (sata):
+remote (sata + MBR):
 
+```bash
+sudo su -
+parted /dev/sda -- mklabel msdos
+parted /dev/sda -- rm 1
+parted /dev/sda -- rm 2
+parted /dev/sda -- rm 3
+parted /dev/sda -- rm 4
+parted /dev/sda -- mkpart primary 1MiB 1GiB
+parted /dev/sda -- mkpart primary 1GiB 100%
+cryptsetup luksFormat /dev/sda2
+```
+
+remote (sata):
 ```bash
 sudo su -
 # `efibootmgr -b 000x -B` if you want to remove entry number x
@@ -51,10 +64,21 @@ remote (nvme):
 cryptsetup luksOpen /dev/nvme0n1p2 crypt
 ```
 
-remote (sata):
+remote (sata+MBR):
+
+```bash
+mkfs.ext2 /dev/sda1 -L boot
+```
+
+remote (sata + GPT):
 
 ```bash
 mkfs.fat -F 32 -n boot /dev/sda1
+```
+
+remote (sata):
+
+```bash
 mkfs.btrfs -L nixos /dev/mapper/crypt
 cryptsetup luksClose crypt
 cryptsetup luksOpen /dev/sda2 crypt