X-Git-Url: http://git.grml.org/?a=blobdiff_plain;f=scripts%2Flive-helpers;h=5306cf5ba6292bf6f4a8555842b10402942ab089;hb=65dc1e4b2ba0d3e086308d4ad3104a1ce3a098cd;hp=0ab36b9b4ed3cb65bfe5e06d374e6602ab426d6e;hpb=a9d29ee385fb31d8e5bda0ba649afb54914673c5;p=live-boot-grml.git

diff --git a/scripts/live-helpers b/scripts/live-helpers
index 0ab36b9..5306cf5 100644
--- a/scripts/live-helpers
+++ b/scripts/live-helpers
@@ -530,6 +530,24 @@ what_is_mounted_on ()
 	grep -m1 "^[^ ]\+ ${dir} " /proc/mounts | cut -d' ' -f1
 }
 
+chown_ref ()
+{
+	local reference="${1}"
+	shift
+	local targets=${@}
+	local owner=$(stat -c %u:%g "${reference}")
+	chown -h ${owner} ${targets}
+}
+
+chmod_ref ()
+{
+	local reference="${1}"
+	shift
+	local targets=${@}
+	local rights=$(stat -c %a "${reference}")
+	chmod ${rights} ${targets}
+}
+
 lastline ()
 {
 	while read lines
@@ -1164,17 +1182,19 @@ link_files ()
 			then
 				mkdir -p "${dest}"
 				prev="$(dirname "${dest}")"
-				chown --reference "${prev}" "${dest}"
-				chmod --reference "${prev}" "${dest}"
+				chown_ref "${prev}" "${dest}"
+				chmod_ref "${prev}" "${dest}"
 			fi
 			link_files "${src}" "${dest}" "${src_mask}"
 		else
+			local final_src=${src}
 			if [ -n "${src_mask}" ]
 			then
-				src="$(echo ${src} | sed "s|^${src_mask}||")"
+				final_src="$(echo ${final_src} | sed "s|^${src_mask}||")"
 			fi
 			rm -rf "${dest}" 2> /dev/null
-			ln -s "${src}" "${dest}"
+			ln -s "${final_src}" "${dest}"
+			chown_ref "${src}" "${dest}"
 		fi
 	done
 }
@@ -1394,33 +1414,29 @@ activate_custom_mounts ()
 			continue
 		fi
 
-		# FIXME: we don't handle already existing
-		# non-directory files in the paths of both $source and
-		# $dest.
-
 		if [ ! -d "${dest}" ]
 		then
-			# if ${dest} is in /home/$user, try fixing
-			# proper ownership
-			# FIXME: this should really be handled by
-			# live-config since we don't know for sure
-			# which uid a certain user has until then
-			if trim_path ${dest} | grep -qe "^${rootmnt}/*home/[^/]\+"
-			then
-				path="/"
-				for dir in $(echo ${dest} | sed -e 's|/\+| |g')
-				do
-					path=${path}/${dir}
-					if [ ! -e ${path} ]
+			# create the destination and delete existing files in
+			# its path that are in the way
+			path="/"
+			for dir in $(echo ${dest} | sed -e 's|/\+| |g')
+			do
+				path=$(trim_path ${path}/${dir})
+				if [ -f ${path} ]
+				then
+					rm -f ${path}
+				fi
+				if [ ! -e ${path} ]
+				then
+					mkdir -p ${path}
+					if echo ${path} | grep -qe "^${rootmnt}/*home/[^/]\+"
 					then
-						mkdir -p ${path}
-						# assume that the intended user is the first, which is usually the case
+						# if ${dest} is in /home try fixing proper ownership by assuming that the intended user is the first, which is usually the case
+						# FIXME: this should really be handled by live-config since we don't know for sure which uid a certain user has until then
 						chown 1000:1000 ${path}
 					fi
-				done
-			else
-				mkdir -p ${dest}
-			fi
+				fi
+			done
 		fi
 
 		# if ${source} doesn't exist on our persistent media
@@ -1436,9 +1452,9 @@ activate_custom_mounts ()
 			then
 				# unions and don't need to be bootstrapped
 				# linkfiles dirs can't be bootstrapped in a sensible way
-				mkdir "${source}"
-				chown --reference "${dest}" "${source}"
-				chmod --reference "${dest}" "${source}"
+				mkdir -p "${source}"
+				chown_ref "${dest}" "${source}"
+				chmod_ref "${dest}" "${source}"
 			else
 				# ensure that $dest is not copied *into* $source
 				mkdir -p "$(dirname ${source})"
@@ -1498,8 +1514,8 @@ activate_custom_mounts ()
 				rm -rf "${cow_dir}"
 			fi
 			mkdir -p ${cow_dir}
-			chown --reference "${source}" "${cow_dir}"
-			chmod --reference "${source}" "${cow_dir}"
+			chown_ref "${source}" "${cow_dir}"
+			chmod_ref "${source}" "${cow_dir}"
 			do_union ${dest} ${cow_dir} ${source} ${rofs_dest_backing}
 		fi