kernelsign

commit 72721fe7c3f85cb5f08f414eeb82ecff6a17052b
parent b50250728f467edbf91dc57264c37a638ccdd89b
Author: nanmi <nanmi@member.fsf.org>
Date:   Fri, 16 Dec 2022 02:24:52 +0900

Check for bzImage before backup

Diffstat:
M
ks.sh
 | 
10
+++++++---

1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/ks.sh b/ks.sh
@@ -1,5 +1,5 @@
 #!/usr/bin/env sh
-# Kernelsign v0.1.0
+# Kernelsign v0.1.1
 
 set -eu
 # To find the UUIDs, run `lsblk -f` as root
@@ -20,6 +20,11 @@ _text() {
     printf " ${INSTALL}*${GENTOO} %s\n" "${*}"
 }
 
+_backupKernel() {
+    _text "Backing up old kernel at ${MNT}..."
+    mv -uv "${ESP}/bzImage.efi" "${MNT}/bzImage.efi.old"
+}
+
 prepareKeys() {
     _text "Opening keys partition as ${NAME}..."
     cryptsetup -v luksOpen UUID="${KEYS_UUID}" "${NAME}"
@@ -30,8 +35,7 @@ prepareKeys() {
 prepareESP() {
     _text "Mounting ESP..."
     mount -vU "${ESP_UUID}" "${ESP}"
-    _text "Backing up old kernel at ${MNT}..."
-    mv -uv "${ESP}/bzImage.efi" "${MNT}/oldbzImage.efi"
+    [ -s "${ESP}/bzImage.efi" ] && _backupKernel
 }
 
 signKernel() {