X-Git-Url: https://iankelling.org/git/?a=blobdiff_plain;f=install-chboot;h=69f46dfb99848bbbdd6641a98ae15108d0df165a;hb=99439572819ac875b329189d7b9162a5bb8bc805;hp=d066101642454420d7664649dbc1f9fc88d61104;hpb=83828fe2683227f4d8ecb2343eff28439741b490;p=automated-distro-installer

diff --git a/install-chboot b/install-chboot
index d066101..69f46df 100755
--- a/install-chboot
+++ b/install-chboot
@@ -20,12 +20,25 @@
 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.
 
 x=$(readlink -f "$BASH_SOURCE"); cd ${x%/*}
 
+usage() {
+    cat <<EOF
+Usage: ${0##*/} [-h|--help]
+reinstall chboot to /boot subvols, for chboot updates.
+
+We install to /boot in case there is an issue booting and only the /boot
+vol is readily available. For the bootstrap subvol, this is the normal
+case.
+EOF
+    exit $1
+}
+case $1 in
+    -h|--help) usage ;;
+esac
+
+
 e() { echo "$@"; "$@"; }
 
 boot_dev=$(mount | sed -rn "s#^(\S+) on /boot .*#\1#p")