X-Git-Url: https://iankelling.org/git/?a=blobdiff_plain;f=install-chboot;fp=install-chboot;h=838c0ae02e63565a37963088f8c65490734dc45d;hb=cfe7d2a4eb0e0af4cd59df420f76ea4d5ee755fd;hp=0000000000000000000000000000000000000000;hpb=114c4b67d43d7fa1cd7b5014153b82aa8492c74d;p=automated-distro-installer

diff --git a/install-chboot b/install-chboot
new file mode 100755
index 0000000..838c0ae
--- /dev/null
+++ b/install-chboot
@@ -0,0 +1,44 @@
+#!/bin/bash
+# Copyright (C) 2016 Ian Kelling
+
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+[[ $EUID == 0 ]] || exec sudo -E "$BASH_SOURCE" "$@"
+
+set -eE -o pipefail
+trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?" >&2' ERR
+
+# usage install-chboot: isntalls chboot to all /boot subvols,
+# in case there is an issue booting and it is needed.
+# Run this when chboot changes.
+
+cd "${BASH_SOURCE%/*}"
+
+e() { echo "$@"; "$@"; }
+
+boot_dev=$(mount | sed -rn "s#^(\S+) on /boot .*#\1#p")
+mount_point=$(mktemp -d)
+e mount -o subvolid=0 $boot_dev $mount_point
+
+shopt -s nullglob
+for dir in $mount_point/*; do
+    btrfs subvol show $dir &>/dev/null || continue
+    if [[ -e $dir/boot ]]; then
+        dir=$dir/boot
+    fi
+    e install -m 755 -o root -g root chboot $dir
+done
+e umount $mount_point
+e rmdir $mount_point