X-Git-Url: https://git.grml.org/?a=blobdiff_plain;f=scripts%2Flive;h=16a54c2059206d6750fd69acd2a46048dfa15ca3;hb=f197369a2f2a0078e58b869f5884254d138e5894;hp=ebac3aec7d87149fe97896ce1f68983676fcf583;hpb=12f41659d6b3a30451d293f4ae5d3f385c8662e0;p=live-boot-grml.git

diff --git a/scripts/live b/scripts/live
index ebac3ae..16a54c2 100755
--- a/scripts/live
+++ b/scripts/live
@@ -79,6 +79,9 @@ Arguments ()
 				export USERFULLNAME LIVECONF
 				;;
 
+			ignore_uuid)
+				IGNORE_UUID="Yes" ;;
+
 			ip=*)
 				STATICIP="${ARGUMENT#ip=}"
 
@@ -434,6 +437,22 @@ is_live_path ()
 	return 1
 }
 
+matches_uuid() {
+    if [ "$IGNORE_UUID" ] || [ ! -e /conf/uuid.conf ]; then
+        return 0
+    fi
+    path="$1"
+    uuid="$(cat /conf/uuid.conf)"
+    for try_uuid_file in "$mountpoint/.disk/casper-uuid"*; do
+        [ -e "$try_uuid_file" ] || continue
+        try_uuid="$(cat "$try_uuid_file")"
+        if [ "$uuid" = "$try_uuid" ]; then
+            return 0
+        fi
+    done
+    return 1
+}
+
 get_backing_device ()
 {
 	case "${1}" in
@@ -983,6 +1002,7 @@ check_dev ()
 {
 	sysdev="${1}"
 	devname="${2}"
+	skip_uuid_check="${3}"
 
 	if [ -z "${devname}" ]
 	then
@@ -1002,7 +1022,8 @@ check_dev ()
 		mount -t ${fstype} -o ro,noatime,nodiratime "${devname}" ${mountpoint} || continue
 
 		if is_live_path ${mountpoint}
-		then
+		if is_live_path $mountpoint && \
+			([ "$skip_uuid_check" ] || matches_uuid $mountpoint); then
 			echo ${mountpoint}
 			return 0
 		else
@@ -1025,7 +1046,7 @@ find_livefs ()
 	# first look at the one specified in the command line
 	if [ ! -z "${LIVE_MEDIA}" ]
 	then
-		if check_dev "null" "${LIVE_MEDIA}"
+		if check_dev "null" "${LIVE_MEDIA}" "skip_uuid_check"
 		then
 			return 0
 		fi