cleanup the broadcom preinit.arch

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@7176 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 17 insertions, 14 deletions

diff --git a/package/base-files/files/sbin/mount_root b/package/base-files/files/sbin/mount_root
index a783f3d8ff..f1d93bafc3 100755
--- a/package/base-files/files/sbin/mount_root
+++ b/package/base-files/files/sbin/mount_root
@@ -2,34 +2,37 @@
 # Copyright (C) 2006 OpenWrt.org
 . /etc/functions.sh
 
+mkdir -p /dev/pts /dev/shm
+mount none /dev/pts -t devpts
 mount none /proc -t proc
 
 size=$(awk '/MemTotal:/ {l=5242880;mt=($2*1024);print((s=mt/2)<l)?mt-l:s}' /proc/meminfo)
 mount none /tmp -t tmpfs -o size=$size,nosuid,nodev,mode=1777
 
-if grep devfs /proc/filesystems >/dev/null; then
+if grep devfs /proc/filesystems > /dev/null; then
 	mount none /dev -t devfs
+	M0=/dev/pty/m0
+	M1=/dev/pty/m1
+	HOTPLUG=/sbin/hotplug-call
 else
+	mount -t sysfs none /sys
 	mount -t tmpfs tmpfs /dev -o size=512K
 	mknod /dev/console c 5 1
-	exec >/dev/console </dev/console 2>&1
+	mkdir /dev/shm
+	/sbin/hotplug2 --no-persistent --coldplug --set-rules-file /etc/hotplug2-init.rules
+	M0=/dev/ptmx
+	M1=/dev/ptmx
+	HOTPLUG=
 fi
 
-mkdir /dev/shm
+# the shell really doesn't like having stdin/out closed
+# that's why we use /dev/pty/m0 and m1 as replacement
+# for /dev/console if there's no serial console available
+dd if=/dev/console of=/dev/null bs=1 count=0 >/dev/null 2>/dev/null || \
+	exec <$M0 >$M1 2>&0
 
-if grep sysfs /proc/filesystems >/dev/null; then
-	mount -t sysfs none /sys
-	HOTPLUG=""
-	# use a minimal ruleset only for creating device nodes
-	/sbin/hotplug2 --no-persistent --coldplug --set-rules-file /etc/hotplug2-init.rules
-else
-	HOTPLUG="/sbin/hotplug2-dnode"
-fi
 echo "$HOTPLUG" > /proc/sys/kernel/hotplug
 
-mkdir -p /dev/pts
-mount none /dev/pts -t devpts
-
 jffs2_ready () {
 	mtdpart="$(find_mtd_part rootfs_data)"
 	magic=$(hexdump $mtdpart -n 4 -e '4/1 "%02x"')