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README: fix partition guide

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Jörg Thalheim 2021-05-12 20:27:38 +02:00
parent 5d7dd7d57e
commit e38cac70af
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1 changed files with 17 additions and 12 deletions

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README.md
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@ -97,12 +97,15 @@ $ ./deploy --force-reboot --include build02
# - partition 1 will be the boot partition, needed for legacy (BIOS) boot
# - partition 2 is for boot partition
# - partition 3 takes up the rest of the space and is for the system
$ sgdisk -n 1:2048:4095 -n 2:4096:+512M -N 3 -t 1:ef02 -t 2:8304 -t 3:8304 /dev/nvme0n1
$ sgdisk -n 1:2048:4095 -n 2:4096:+512M -N 3 -t 1:ef02 -t 2:8304 -t 3:8304 /dev/nvme1n1
$ sgdisk -n 1:2048:4095 -n 2:4096:+2G -N 3 -t 1:ef02 -t 2:8304 -t 3:8304 /dev/nvme0n1
$ sgdisk -n 1:2048:4095 -n 2:4096:+2G -N 3 -t 1:ef02 -t 2:8304 -t 3:8304 /dev/nvme1n1
# create mdadm raid for /boot with ext4
$ sudo mdadm --create --verbose /dev/md127 --level=0 --raid-devices=2 /dev/nvme{0,1}n1p2
$ sudo mkfs.ext4 -F /dev/md127
$ mdadm --create --verbose /dev/md127 --raid-devices=2 --level=1 /dev/nvme{0,1}n1p2
$ mkfs.ext4 -F /dev/md127
# format zpool
# use partuuids as they are more stable than device names
$ ls -la /dev/disk/by-partuuid/
$ zpool create zroot -O acltype=posixacl -O xattr=sa -O compression=lz4 mirror /dev/disk/by-partuuid/long-uuid1 /dev/disk/by-partuuid/long-uuid2
$ zpool create zroot -O acltype=posixacl -O xattr=sa -O compression=lz4 mirror /dev/nvme{0,1}n1p3
$ zfs create -o mountpoint=none zroot/root
$ zfs create -o mountpoint=legacy zroot/root/nixos
@ -124,14 +127,16 @@ $ nixos-generate-config --root /mnt
$ diff -aur /mnt/etc/nixos/hardware-configuration.nix buildXX/hardware-configuration.nix
```
4. Build new system closure:
``` console
nix-shell> nix-build -A buildXX-system
```
5. Install system closure
4. Build and install system
```console
$ nixos-install --system ./result
$ nixos-install --system $(nix-build -A buildXX-system)
```
### Debug VM
You can start a vm from the rescue system in order to debug the boot:
```console
$ nix-shell -p qemu_kvm --run 'qemu-kvm -m 10G -hda /dev/sda -hdb /dev/sdb -curses -cpu host -enable-kvm'
```