5?-dracut*.install: Allow scripts to install the initramfs in /boot dir

The GRUB 2 bootloaders expect the initrd to be installed in /boot instead
of /boot/$MACHINE_ID/$KERNEL_VERSION/{linux,initrd}, so if that directory
doesn't exists, install the initramfs images on the /boot directory.

Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>

50-dracut.install

@@ -11,6 +11,13 @@ if ! [[ ${KERNEL_INSTALL_MACHINE_ID-x} ]]; then
     exit 0
 fi
 
+if [[ -d "$BOOT_DIR_ABS" ]]; then
+    INITRD="initrd"
+else
+    BOOT_DIR_ABS="/boot"
+    INITRD="initramfs-${KERNEL_VERSION}.img"
+fi
+
 ret=0
 case "$COMMAND" in
     add)
@@ -18,9 +25,9 @@ case "$COMMAND" in
         if [[ -f ${INITRD_IMAGE_PREGENERATED} ]]; then
             # we found an initrd at the same place as the kernel
             # use this and don't generate a new one
-            cp --reflink=auto "$INITRD_IMAGE_PREGENERATED" "$BOOT_DIR_ABS/initrd" \
-                && chown root:root "$BOOT_DIR_ABS/initrd" \
-                && chmod 0600 "$BOOT_DIR_ABS/initrd" \
+            cp --reflink=auto "$INITRD_IMAGE_PREGENERATED" "$BOOT_DIR_ABS/$INITRD" \
+                && chown root:root "$BOOT_DIR_ABS/$INITRD" \
+                && chmod 0600 "$BOOT_DIR_ABS/$INITRD" \
                 && exit 0
         fi
 
@@ -42,11 +49,11 @@ case "$COMMAND" in
                 break
             fi
         done
-	dracut ${noimageifnotneeded:+--noimageifnotneeded} "$BOOT_DIR_ABS"/initrd "$KERNEL_VERSION"
+	dracut ${noimageifnotneeded:+--noimageifnotneeded} "$BOOT_DIR_ABS/$INITRD" "$KERNEL_VERSION"
         ret=$?
 	;;
     remove)
-        rm -f -- "$BOOT_DIR_ABS"/initrd
+        rm -f -- "$BOOT_DIR_ABS/$INITRD"
         ret=$?
 	;;
 esac

51-dracut-rescue.install

@@ -63,15 +63,30 @@ if ! [[ ${BOOT_OPTIONS[*]} ]]; then
     exit 1
 fi
 
+if [[ -d "$BOOT_DIR_ABS" ]]; then
     BOOT_DIR="/${MACHINE_ID}/0-rescue"
     BOOT_ROOT=${BOOT_DIR_ABS%$BOOT_DIR}
     LOADER_ENTRY="$BOOT_ROOT/loader/entries/${MACHINE_ID}-0-rescue.conf"
+    KERNEL="linux"
+    INITRD="initrd"
+else
+    BLS_DIR="/boot/loader/entries"
+    if [ -d /sys/firmware/efi ]; then
+	BLS_DIR="/boot/efi/EFI/${ID}/loader/entries"
+    fi
+
+    BOOT_DIR_ABS="/boot"
+    LOADER_ENTRY="$BLS_DIR/${MACHINE_ID}-0-rescue.conf"
+    KERNEL="vmlinuz-0-rescue-${MACHINE_ID}"
+    INITRD="initramfs-0-rescue-${MACHINE_ID}.img"
+fi
 
 ret=0
 
 case "$COMMAND" in
     add)
-        [[ -f "$LOADER_ENTRY" ]] && exit 0
+        [[ -f "$LOADER_ENTRY" ]] && [[ -f "$BOOT_DIR_ABS/$KERNEL" ]] \
+            && [[ -f "$BOOT_DIR_ABS/$INITRD" ]] && exit 0
 
         # source our config dir
         for f in $(dropindirs_sort ".conf" "/etc/dracut.conf.d" "/usr/lib/dracut/dracut.conf.d"); do
@@ -82,13 +97,16 @@ case "$COMMAND" in
 
         [[ -d "$BOOT_DIR_ABS" ]] || mkdir -p "$BOOT_DIR_ABS"
 
-        if ! cp --reflink=auto "$KERNEL_IMAGE" "$BOOT_DIR_ABS"/linux; then
-            echo "Can't copy '$KERNEL_IMAGE to '$BOOT_DIR_ABS/linux'!" >&2
+        if ! cp --reflink=auto "$KERNEL_IMAGE" "$BOOT_DIR_ABS/$KERNEL"; then
+            echo "Can't copy '$KERNEL_IMAGE to '$BOOT_DIR_ABS/$KERNEL'!" >&2
         fi
 
-        dracut --no-hostonly -a "rescue" "$BOOT_DIR_ABS"/initrd "$KERNEL_VERSION"
+        if [[ ! -f "$BOOT_DIR_ABS/$INITRD" ]]; then
+            dracut --no-hostonly -a "rescue" "$BOOT_DIR_ABS/$INITRD" "$KERNEL_VERSION"
             ((ret+=$?))
+        fi
 
+        if [[ -d "$BOOT_DIR" ]]; then
             {
                 echo "title      $PRETTY_NAME - Rescue Image"
                 echo "version    $KERNEL_VERSION"
@@ -97,6 +115,11 @@ case "$COMMAND" in
                 echo "linux      $BOOT_DIR/linux"
                 echo "initrd     $BOOT_DIR/initrd"
             } > $LOADER_ENTRY
+        else
+            cp -aT "${KERNEL_IMAGE%/*}/bls.conf" $LOADER_ENTRY
+            sed -i 's/'$KERNEL_VERSION'/0-rescue-'${MACHINE_ID}'/' $LOADER_ENTRY
+        fi
+
         ((ret+=$?))
         ;;