+++ /dev/null
-#!/bin/bash -x
-
-# Set grub to boot into a different distro, and reboot unless -r
-# $0 [DISTRO_NAME]
-# with no argument, print available distros
-
-# DISTRO_NAME is based on the partition names in /boot. eg boot_debianjessie
-
-set -eE -o pipefail
-trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?"' ERR
-
-[[ $EUID == 0 ]] || exec sudo "$BASH_SOURCE" "$@"
-
-reboot=true
-while [[ $1 == -* ]]; do
- case $1 in
- -r) reboot=false; shift ;;
- --) break ;;
- esac
-done
-
-
-distro=$1
-
-###### end command line parsing #####
-
-if [[ ! $distro ]]; then
- echo "available distros:"
- btrfs subvolume list /boot | sed -rn 's/^.*boot_(.*)/\1/p'
- exit 0
-fi
-
-if ! btrfs subvolume list /boot | grep "_$distro$" &>/dev/null; then
- echo "$0: error: _$distro$ not found in btrfs subvolume list /boot:"
- btrfs subvolume list /boot
- exit 1
-fi
-
-e() { echo "$@"; "$@"; }
-
-boot_dev=$(mount | sed -rn "s#^(\S+) on /boot .*#\1#p")
-
-mount_point=$(mktemp -d)
-
-e mount -o subvol=boot_$distro $boot_dev $mount_point
-
-boot_disk=${boot_dev%%[0-9]*}
-
-# arch doesn't have $mount_point/grub/device.map, accoring to the grub manual,
-# it just generates one if the file doesn't exist.
-# https://www.gnu.org/software/grub/manual/html_node/Device-map.html
-e grub-bios-setup -d $mount_point/grub/i386-pc -s -m $mount_point/grub/device.map $boot_disk
-
-e umount $mount_point
-e rmdir $mount_point