X-Git-Url: http://git.grml.org/?a=blobdiff_plain;f=scripts%2Flive-helpers;h=0e9b0d02d2cc655fdfbb270b2062fe1c629ea953;hb=274ce8e4e2b902e4e7b4871c284cee0285cf18a6;hp=1b4286d17fdb3e02ed9346d22744c126dbdd5986;hpb=85e2939c446d0ead490be57d0a0edac9f6a3f772;p=live-boot-grml.git

diff --git a/scripts/live-helpers b/scripts/live-helpers
index 1b4286d..0e9b0d0 100644
--- a/scripts/live-helpers
+++ b/scripts/live-helpers
@@ -1,4 +1,4 @@
-# live-initramfs helper functions, used by live-initramfs on boot and by live-snapshot
+# live-boot helper functions, used by live-boot on boot and by live-snapshot
 
 if [ ! -x "/bin/fstype" ]
 then
@@ -76,17 +76,7 @@ is_supported_fs ()
 
 get_fstype ()
 {
-	# udev >=146-1 no longer provides vol_id:
-	if [ -x /lib/udev/vol_id ]
-	then
-		/lib/udev/vol_id -t ${1} 2>/dev/null
-	else
-		eval $(blkid -o udev "${1}")
-		if [ -n "$ID_FS_TYPE" ]
-		then
-			echo "${ID_FS_TYPE}"
-		fi
-	fi
+	/sbin/blkid -s TYPE -o value $1 2>/dev/null
 }
 
 where_is_mounted ()
@@ -189,7 +179,11 @@ setup_loop ()
 	local encryption=${5}
 	local readonly=${6}
 
-	modprobe -q -b "${module}"
+	# the output of setup_loop is evaluated in other functions,
+	# modprobe leaks kernel options like "libata.dma=0"
+	# as "options libata dma=0" on stdout, causing serious
+	# problems therefor, so instead always avoid output to stdout
+	modprobe -q -b "${module}" 1>/dev/null
 
 	udevadm settle
 
@@ -307,7 +301,7 @@ find_cow_device ()
 		do
 			devname=$(sys2dev "${dev}")
 
-			if echo "${black_listed_devices}" | grep -q "${devname}"
+			if echo "${black_listed_devices}" | grep -q -w "${devname}"
 			then
 				# skip this device enterely
 				break
@@ -343,21 +337,10 @@ find_cow_device ()
 				done
 			fi
 
-			# udev >=146-1 no longer provides vol_id:
-			if [ -x /lib/udev/vol_id ]
+			if [ "$(/sbin/blkid -s LABEL -o value $devname 2>/dev/null)" = "${pers_label}" ]
 			then
-				if [ "$(/lib/udev/vol_id -l ${devname} 2>/dev/null)" = "${pers_label}" ]
-				then
-					echo "${devname}"
-					return 0
-				fi
-			else
-				eval $(blkid -o udev "${devname}")
-				if [ "$ID_FS_LABEL" = "${pers_label}" ]
-				then
-					echo "${devname}"
-					return 0
-				fi
+				echo "${devname}"
+				return 0
 			fi
 
 			if [ "${PERSISTENT}" = "nofiles" ]
@@ -405,7 +388,7 @@ find_files ()
 			devname=$(sys2dev "${dev}")
 			devfstype="$(get_fstype ${devname})"
 
-			if echo "${black_listed_devices}" | grep -q "${devname}"
+			if echo "${black_listed_devices}" | grep -q -w "${devname}"
 			then
 				# skip this device enterely
 				break