kernel-install: don't make unused parameter mandatory

[elogind.git] / src / kernel-install / kernel-install

diff --git a/src/kernel-install/kernel-install b/src/kernel-install/kernel-install
index 769c6096062ed16e2d9e5388672afe511c6b31c8..9f3a5232181de5ef1dd0fc737d5513e3c6b313c5 100644 (file)
--- a/src/kernel-install/kernel-install
+++ b/src/kernel-install/kernel-install
@@ -28,14 +28,14 @@ KERNEL_IMAGE="$3"
 [[ -f /etc/os-release ]] && . /etc/os-release
 if ! [[ $ID ]]; then
     echo "Can't determine the name of your distribution. Please create /etc/os-release." >&2
-    echo "See http://www.freedesktop.org/software/systemd/man/os-release.html" >&2
+    echo "See man:os-release(5)" >&2
     exit 1
 fi
 
 [[ -f /etc/machine-id ]] && read MACHINE_ID < /etc/machine-id
 if ! [[ $MACHINE_ID ]]; then
     echo "Can't determine your machine id. Please create /etc/machine-id!" >&2
-    echo "See http://www.freedesktop.org/software/systemd/man/machine-id.html" >&2
+    echo "See man:machine-id(5)" >&2
     exit 1
 fi
 
@@ -62,14 +62,14 @@ usage()
     } >&2
 }
 
-if ! ( [[ $COMMAND ]] && [[ $KERNEL_VERSION ]] && [[ $KERNEL_IMAGE ]] ); then
+if ! ( [[ $COMMAND ]] && [[ $KERNEL_VERSION ]] ); then
     usage
     exit 1
 fi
 
-BOOT_DIR="$MACHINE_ID/$KERNEL_VERSION"
-BOOT_DIR_ABS="/boot/$BOOT_DIR"
-LOADER_ENTRY="/boot/loader/entries/${ID}-${KERNEL_VERSION}-${MACHINE_ID}.conf"
+BOOT_DIR="/${MACHINE_ID}/${KERNEL_VERSION}"
+BOOT_DIR_ABS="/boot${BOOT_DIR}"
+LOADER_ENTRY="/boot/loader/entries/${MACHINE_ID}-${KERNEL_VERSION}.conf"
 ret=0
 
 dropindirs_sort()
@@ -101,6 +101,10 @@ readarray -t PLUGINS < <(
 
 case "$COMMAND" in
     add)
+        if [[ -z $KERNEL_IMAGE ]]; then
+            usage
+            exit 1
+        fi
         mkdir -p "$BOOT_DIR_ABS" || exit 1
 
         for f in "${PLUGINS[@]}"; do