merge of a43a3081d043237ce284af591c69b35171e746be

     and b91f743ce475bca1b138c7fd63260e83a34f53c2

1 files changed, 70 insertions, 0 deletions

diff --git a/packages/nslu2-binary-only/unslung-rootfs-2.3r63/linuxrc b/packages/nslu2-binary-only/unslung-rootfs-2.3r63/linuxrc
new file mode 100755
index 0000000000..cc53d447c3
--- /dev/null
+++ b/packages/nslu2-binary-only/unslung-rootfs-2.3r63/linuxrc
@@ -0,0 +1,70 @@
+#!/bin/sh
+
+# ****  DO NOT EVEN THINK OF EDITING OR REMOVING THIS FILE  ****
+# **** UNLESS YOU REALLY KNOW *EXACTLY* WHAT YOU ARE DOING. ****
+
+
+# Perform prepatory tasks, and determine whether an alternate rootfs is viable.
+
+/bin/mount -t proc proc /proc
+
+echo "1" > /proc/sys/kernel/panic
+
+/bin/echo "Sleeping while waiting for disk..."
+cnt=20
+while [ $cnt -gt 0 ] ; do
+  echo -ne "\r$cnt "
+  sleep 1
+  [ -f /proc/hdd_sdb ] && cnt=0
+  [ -f /proc/hdd_sda ] && cnt=0
+  cnt=`expr $cnt - 1`
+done
+echo
+
+sleep 5
+
+mounted=
+
+for prefroot in sdb1 sda1 ; do
+  if [ -z "$mounted" ] ; then
+    if /bin/mount -rt ext3 /dev/$prefroot /mnt ; then
+      if [ -x /mnt/bin/init ] ; then
+        /bin/echo "Root filesystem will be mounted from /dev/$prefroot ..."
+        mounted=/mnt
+      else
+        /bin/umount /mnt
+        /bin/echo "Can't find valid rootfs on /dev/$prefroot ..."
+      fi
+    fi
+  fi
+done
+
+if [ -z "$mounted" ] ; then
+  /bin/echo "Can't find valid rootfs, using ramdisk ..."
+  mounted=
+fi
+
+/bin/umount /proc
+
+# Pivot to the desired rootfs and run the initial executable.
+
+if [ -n "$mounted" ] ; then
+
+    cd $mounted
+
+    /bin/echo "Pivoting to external rootfs ..."
+    /sbin/pivot_root . initrd
+
+    exec /usr/sbin/chroot . /bin/init < /dev/console 1> /dev/console 2> /dev/console
+
+else
+
+    exec /bin/init
+
+fi
+
+/bin/echo "Can't pivot to external rootfs, using ramdisk ..."
+exec /bin/init
+
+# Last-resort fall-back - this should never be reached.
+/bin/sh