Write rules for symlinks to /dev/.udev/rules.d for later usage

We want some symlinks to persist in the real root, so we write them to
/dev/.udev/rules.d, that they survive a retrigger.

modules.d/90dmsquash-live/dmsquash-live-genrules.sh

@@ -1,14 +1,16 @@
 if [ "${root%%:*}" = "live" ]; then
-    (
+    [ -d /dev/.udev/rules.d ] || mkdir -p /dev/.udev/rules.d
+    {
     printf 'KERNEL=="%s", SYMLINK+="live"\n' \
     	${root#live:/dev/} 
     printf 'SYMLINK=="%s", SYMLINK+="live"\n' \
 	${root#live:/dev/} 
+    } >> /dev/.udev/rules.d/99-live-mount.rules
+    {
     printf 'KERNEL=="%s", RUN+="/sbin/initqueue --settled --onetime --unique /sbin/dmsquash-live-root $env{DEVNAME}"\n' \
     	${root#live:/dev/} 
     printf 'SYMLINK=="%s", RUN+="/sbin/initqueue --settled --onetime --unique /sbin/dmsquash-live-root $env{DEVNAME}"\n' \
 	${root#live:/dev/} 
-
-    ) >> /etc/udev/rules.d/99-live-mount.rules
+    } >> /etc/udev/rules.d/99-live-mount.rules
     echo '[ -e /dev/root ]' > /initqueue-finished/dmsquash.sh
 fi

modules.d/90dmsquash-live/dmsquash-liveiso-genrules.sh

@@ -1,7 +1,7 @@
 if [ "${root%%:*}" = "liveiso" ]; then
-    (
+    {
      printf 'KERNEL=="loop0", RUN+="/sbin/initqueue --settled --onetime --unique /sbin/dmsquash-live-root `/sbin/losetup -f --show %s`"\n' \
 	  ${root#liveiso:}
-    ) >> /etc/udev/rules.d/99-liveiso-mount.rules
+    } >> /etc/udev/rules.d/99-liveiso-mount.rules
     echo '[ -e /dev/root ]' > /initqueue-finished/dmsquash.sh
 fi

modules.d/95resume/resume-genrules.sh

@@ -1,13 +1,17 @@
 if [ -n "$resume" ]; then
+    [ -d /dev/.udev/rules.d ] || mkdir -p /dev/.udev/rules.d
     {
-    printf "KERNEL==\"%s\", ACTION==\"add|change\", ENV{ID_FS_TYPE}==\"suspend|swsuspend|swsupend\", RUN+=\"/bin/sh -c 'echo %%M:%%m > /sys/power/resume'\"\n" \
-		${resume#/dev/};
-    printf "SYMLINK==\"%s\", ACTION==\"add|change\", ENV{ID_FS_TYPE}==\"suspend|swsuspend|swsupend\", RUN+=\"/bin/sh -c 'echo %%M:%%m > /sys/power/resume'\"\n" \
-		${resume#/dev/};
     printf "KERNEL==\"%s\", ACTION==\"add|change\", SYMLINK+=\"/dev/resume\"\n" \
 		${resume#/dev/};
     printf "SYMLINK==\"%s\", ACTION==\"add|change\", SYMLINK+=\"/dev/resume\"\n" \
 		${resume#/dev/};
+    } >> /dev/.udev/rules.d/99-resume.rules
+
+    {
+    printf "KERNEL==\"%s\", ACTION==\"add|change\", ENV{ID_FS_TYPE}==\"suspend|swsuspend|swsupend\", RUN+=\"/bin/sh -c 'echo %%M:%%m > /sys/power/resume'\"\n" \
+		${resume#/dev/};
+    printf "SYMLINK==\"%s\", ACTION==\"add|change\", ENV{ID_FS_TYPE}==\"suspend|swsuspend|swsupend\", RUN+=\"/bin/sh -c 'echo %%M:%%m > /sys/power/resume'\"\n" \
+		${resume#/dev/};
     } >> /etc/udev/rules.d/99-resume.rules
 
     printf '[ -e "%s" ] && { ln -s "%s" /dev/resume; rm "$job"; }\n' \

modules.d/95rootfs-block/block-genrules.sh

@@ -1,10 +1,11 @@
 if [ "${root%%:*}" = "block" ]; then
-    (
+    [ -d /dev/.udev/rules.d ] || mkdir -p /dev/.udev/rules.d
+    {
     printf 'KERNEL=="%s", SYMLINK+="root"\n' \
 	${root#block:/dev/} 
     printf 'SYMLINK=="%s", SYMLINK+="root"\n' \
 	${root#block:/dev/} 
-    ) >> /etc/udev/rules.d/99-mount.rules
+    } >> /dev/.udev/rules.d/99-root.rules
     
     printf '[ -e "%s" ] && { ln -s "%s" /dev/root 2>/dev/null; rm "$job"; }\n' \
 	"${root#block:}" "${root#block:}" >> /initqueue-settled/blocksymlink.sh