Only set a default GRUB_PRELOAD_MODULES if not already defined; otherwise used the existing values.

7 years ago · a75544e0c3
parent f48670cec5
commit a75544e0c3
1 changed files with 2 additions and 1 deletions
--- a/live-build/ubuntu-cpc/hooks/033-disk-image-uefi.binary
+++ b/live-build/ubuntu-cpc/hooks/033-disk-image-uefi.binary
@ -82,8 +82,9 @@ install_grub() {
    cat << EOF >> mountpoint/etc/default/grub.d/50-cloudimg-settings.cfg
 ${CLOUD_IMG_STR}
 # For Cloud Image compatability
-GRUB_PRELOAD_MODULES="${grub_modules}"
+GRUB_PRELOAD_MODULES="${GRUB_PRELOAD_MODULES:-$grub_modules}"
 EOF
+
    chroot mountpoint grub-install "${loop_device}" \
        --boot-directory=/boot \
        --efi-directory=/boot/efi \