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|
# Apply standard partition layout to a disk device.
{ pkgs, ... }:
pkgs.writeShellApplication {
name = "partitioner";
runtimeInputs = with pkgs; [
gptfdisk
dosfstools
zfs
coreutils
util-linux
];
text = ''
set -euo pipefail
if [ $# -ne 1 ]; then
echo "Usage: $0 <device>"
echo "Example: $0 /dev/sda or /dev/nvme0n1"
exit 1
fi
DISK="$1"
if [ ! -b "$DISK" ]; then
echo "Error: $DISK is not a valid block device"
exit 1
fi
echo "creating partition table on $DISK"
# create gpt partition table
sgdisk --zap-all "$DISK"
echo "creating efi partition"
sgdisk --new=1:0:+1G --typecode=1:EF00 --change-name=1:ESP "$DISK"
echo "creating zfs partition with remaining space"
sgdisk --new=2:0:0 --typecode=2:BF00 --change-name=2:ZROOT "$DISK"
if [[ "$DISK" == *"nvme"* ]]; then
EFI_PART="''${DISK}p1"
ZFS_PART="''${DISK}p2"
else
EFI_PART="''${DISK}1"
ZFS_PART="''${DISK}2"
fi
sleep 1
echo "formatting rfi partition ($EFI_PART)"
mkfs.fat -F32 -n ESP "$EFI_PART"
echo "creating pool on $ZFS_PART"
zpool create -f \
-o ashift=12 \
-o autotrim=on \
-O acltype=posixacl \
-O canmount=off \
-O compression=on \
-O mountpoint=none \
-O normalization=formD \
-O relatime=off \
-O xattr=sa \
zroot "$ZFS_PART"
# create ZFS datasets
echo "Creating datasets"
zfs create \
-o refreservation=10G \
-o mountpoint=none \
zroot/reserved
zfs create -o mountpoint=legacy zroot/nix
zfs create -o mountpoint=legacy zroot/home
zfs create -o mountpoint=legacy zroot/persist
echo "---"
echo "done"
'';
}
|
