File 0285-dmsquash-live-enable-live-boot-with-netroot-iscsi.patch of Package dracut

From 7596b72b394fe3def6192ea5776e18c7e85adc50 Mon Sep 17 00:00:00 2001
From: Harald Hoyer <harald@redhat.com>
Date: Thu, 20 Sep 2012 14:20:23 +0200
Subject: [PATCH] dmsquash-live: enable live boot with "netroot:iscsi:..."

---
 modules.d/90dmsquash-live/dmsquash-live-genrules.sh | 16 ----------------
 modules.d/90dmsquash-live/dmsquash-live-root        |  2 +-
 modules.d/90dmsquash-live/install                   |  1 -
 modules.d/90dmsquash-live/parse-dmsquash-live.sh    | 20 ++++++++++++++++++--
 4 files changed, 19 insertions(+), 20 deletions(-)
 delete mode 100644 modules.d/90dmsquash-live/dmsquash-live-genrules.sh

diff --git a/modules.d/90dmsquash-live/dmsquash-live-genrules.sh b/modules.d/90dmsquash-live/dmsquash-live-genrules.sh
deleted file mode 100644
index f3ea0a3..0000000
--- a/modules.d/90dmsquash-live/dmsquash-live-genrules.sh
+++ /dev/null
@@ -1,16 +0,0 @@
-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' \
-	${root#live:/dev/} 
-    } >> /etc/udev/rules.d/99-live-squash.rules
-    echo '[ -e /dev/root ]' > /initqueue-finished/dmsquash.sh
-fi
diff --git a/modules.d/90dmsquash-live/dmsquash-live-root b/modules.d/90dmsquash-live/dmsquash-live-root
index 1b7fe19..38c4819 100755
--- a/modules.d/90dmsquash-live/dmsquash-live-root
+++ b/modules.d/90dmsquash-live/dmsquash-live-root
@@ -174,7 +174,7 @@ if [ -n "$ROOTFLAGS" ]; then
     ROOTFLAGS="-o $ROOTFLAGS"
 fi
 
-ln -s /dev/mapper/live-rw /dev/root
+ln -fs /dev/mapper/live-rw /dev/root
 printf '/bin/mount %s /dev/mapper/live-rw %s\n' "$ROOTFLAGS" "$NEWROOT" > /mount/01-$$-live.sh
 
 exit 0
diff --git a/modules.d/90dmsquash-live/install b/modules.d/90dmsquash-live/install
index ad1d29c..e65ccdf 100755
--- a/modules.d/90dmsquash-live/install
+++ b/modules.d/90dmsquash-live/install
@@ -16,7 +16,6 @@ fi
 inst blockdev
 which checkisomd5 >/dev/null 2>&1 && inst checkisomd5
 inst_hook cmdline 30 "$moddir/parse-dmsquash-live.sh"
-inst_hook pre-udev 30 "$moddir/dmsquash-live-genrules.sh"
 inst_hook pre-udev 30 "$moddir/dmsquash-liveiso-genrules.sh"
 inst "$moddir/dmsquash-live-root" "/sbin/dmsquash-live-root"
 # should probably just be generally included
diff --git a/modules.d/90dmsquash-live/parse-dmsquash-live.sh b/modules.d/90dmsquash-live/parse-dmsquash-live.sh
index 24b854e..a029152 100755
--- a/modules.d/90dmsquash-live/parse-dmsquash-live.sh
+++ b/modules.d/90dmsquash-live/parse-dmsquash-live.sh
@@ -39,5 +39,21 @@ case "$liveroot" in
 esac
 info "root was $root, liveroot is now $liveroot"
 
-# make sure that init doesn't complain
-[ -z "$root" ] && root="live"
+if [ "${root##live:/dev/}:" != "$root" ]; 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/98-dracut-20-live-squash.rules
+    echo '[ -e /dev/live ]' > /initqueue-finished/dmsquash.sh
+    root=/dev/mapper/live-rw
+    unset rootok
+fi
-- 
1.8.3.1