Fix docache (bug #397309)

ChangeLog

@@ -5,6 +5,10 @@
 # Distributed under the GPL v2
 # $Id$
 
+  17 Mar 2012; Sebastian Pipping <sping@gentoo.org> defaults/initrd.scripts,
+  defaults/linuxrc:
+  Fix docache (bug #397309)
+
   16 Mar 2012; Sebastian Pipping <sping@gentoo.org> defaults/initrd.scripts,
   defaults/linuxrc:
   Drop into debug shell when squashfs could not be mounted

defaults/initrd.scripts

@@ -191,12 +191,11 @@ cache_cd_contents() {
 			cp -a ${CDROOT_PATH}/${LOOP} ${NEW_ROOT}/mnt/${LOOP}
 			if [ $? -ne 0 ]
 			then
-				bad_msg "Failed to cache the loop file! Lack of space?"
+				warn_msg "Failed to cache the loop file! Lack of RAM?"
+				rm -rf ${NEW_ROOT}/mnt/${LOOP} 2>/dev/null
 				rm -rf ${NEW_ROOT}/mnt/livecd.* 2>/dev/null
 				rm -rf ${NEW_ROOT}/mnt/image.* 2>/dev/null
 				rm -rf ${NEW_ROOT}/mnt/zisofs 2>/dev/null
-			else
-				LOOPEXT='../'
 			fi
 		fi
 	fi

defaults/linuxrc

@@ -627,7 +627,12 @@ then
 		then
 			if [ "${USE_AUFS_NORMAL}" != '1' ]; then
 				good_msg 'Mounting squashfs filesystem'
-				mount -t squashfs -o loop,ro "${CDROOT_PATH}/${LOOPEXT}${LOOP}" "${NEW_ROOT}/mnt/livecd" || {
+				_CACHED_SQUASHFS_PATH="${NEW_ROOT}/mnt/${LOOP}"
+				_squashfs_path="${CDROOT_PATH}/${LOOPEXT}${LOOP}"  # Default to uncached
+				# Upgrade to cached version if possible
+				[ "${DO_cache}" -a -f "${_CACHED_SQUASHFS_PATH}" ] \
+						&& _squashfs_path=${_CACHED_SQUASHFS_PATH}
+				mount -t squashfs -o loop,ro "${_squashfs_path}" "${NEW_ROOT}/mnt/livecd" || {
 					bad_msg "Squashfs filesystem could not be mounted, dropping into shell."
 					if [ -e /proc/filesystems ]; then
 						fgrep -q squashfs /proc/filesystems || \