From 980ba4d5a527d0e011ad9410d3873dd28292a8c6 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <eelco.dolstra@logicblox.com>
Date: Fri, 22 Jun 2012 13:51:42 -0400
Subject: [PATCH] stage-1: mount /proc, /sys, /dev in the target root

The switch_root in BusyBox doesn't do this (while the one in
util-linux does).  So we have to do this ourselves.
---
 modules/system/boot/stage-1-init.sh | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/modules/system/boot/stage-1-init.sh b/modules/system/boot/stage-1-init.sh
index 83300b0d2b8b..33eaee826aa8 100644
--- a/modules/system/boot/stage-1-init.sh
+++ b/modules/system/boot/stage-1-init.sh
@@ -336,8 +336,7 @@ echo /sbin/modprobe > /proc/sys/kernel/modprobe
 
 
 # Start stage 2.  `switch_root' deletes all files in the ramfs on the
-# current root.  It also moves the /proc, /sys and /dev mounts over to
-# the new root.  Note that $stage2Init might be an absolute symlink,
+# current root.  Note that $stage2Init might be an absolute symlink,
 # in which case "-e" won't work because we're not in the chroot yet.
 if ! test -e "$targetRoot/$stage2Init" -o -L "$targetRoot/$stage2Init"; then
     echo "stage 2 init script ($targetRoot/$stage2Init) not found"
@@ -346,7 +345,9 @@ fi
 
 mkdir -m 0755 -p $targetRoot/proc $targetRoot/sys $targetRoot/dev $targetRoot/run
 
-# `switch_root' doesn't move /run yet, so we have to do it ourselves.
+mount --bind /proc $targetRoot/proc
+mount --bind /sys $targetRoot/sys
+mount --bind /dev $targetRoot/dev
 mount --bind /run $targetRoot/run
 
 exec switch_root "$targetRoot" "$stage2Init"