X-Git-Url: https://git.rohieb.name/openwrt.git/blobdiff_plain/8e779fde4fa7e44a6f4ff82000cf468ed02b880f..9c0d199275f54f1b1f1e972f6cdcda067c941e88:/package/base-files/files/sbin/mount_root

diff --git a/package/base-files/files/sbin/mount_root b/package/base-files/files/sbin/mount_root
index 7b89e8f3f..1aa7db725 100755
--- a/package/base-files/files/sbin/mount_root
+++ b/package/base-files/files/sbin/mount_root
@@ -3,29 +3,56 @@
 . /etc/functions.sh
 
 mount none /proc -t proc
-size=$(awk '/Mem:/ {l=5242880;print((s=$2/2)<l)?$2-l:s}' /proc/meminfo)
+
+size=$(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
 	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 --max-children 3
+	/sbin/hotplug2 --no-persistent --coldplug --set-rules-file /etc/hotplug2-init.rules
+	M0=/dev/ptmx
+	M1=/dev/ptmx
+	HOTPLUG=
 fi
-mkdir -p /dev/pts
+
+mkdir -p /dev/pts /dev/shm
 mount none /dev/pts -t devpts
 
+# 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
+
+echo "$HOTPLUG" > /proc/sys/kernel/hotplug
+
+jffs2_ready () {
+	mtdpart="$(find_mtd_part rootfs_data)"
+	magic=$(hexdump $mtdpart -n 4 -e '4/1 "%02x"')
+	[ "$magic" != "deadc0de" ]
+}
+
 [ failsafe != "$1" ] && {
 	grep rootfs /proc/mtd >/dev/null 2>/dev/null && {
 		mtd unlock rootfs
 		grep rootfs_data /proc/mtd >/dev/null 2>/dev/null && {
 			. /bin/firstboot
-			echo "switching to jffs2"
-			mount "$(find_mtd_part rootfs_data)" /jffs -t jffs2
-			fopivot /jffs /rom
+			jffs2_ready && {
+				echo "switching to jffs2"
+				mount "$(find_mtd_part rootfs_data)" /jffs -t jffs2
+				fopivot /jffs /rom
+			} || {
+				echo "jffs2 not ready yet; using ramdisk"
+				ramoverlay
+			}
 		}
 	} || mount -o remount,rw /dev/root /
 }