rc: Add linuxrc file.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

diff --git a/root_image/linuxrc b/root_image/linuxrc
new file mode 100755 (executable)
index 0000000..5893023
--- /dev/null
+++ b/root_image/linuxrc
@@ -0,0 +1,39 @@
+#!/bin/ash
+mount -t proc /proc /proc
+/bin/busybox --install -s
+
+mount -t sysfs /sys /sys
+echo Creating /dev
+mount -o mode=0755 -t tmpfs /dev /dev
+mkdir /dev/pts
+mount -t devpts -o gid=5,mode=620 /dev/pts /dev/pts
+mkdir /dev/shm
+mkdir /dev/mapper
+echo Creating initial device nodes
+mknod /dev/null c 1 3
+mknod /dev/zero c 1 5
+mknod /dev/systty c 4 0
+mknod /dev/tty c 5 0
+mknod /dev/console c 5 1
+mknod /dev/ptmx c 5 2
+mknod /dev/rtc c 10 135
+mknod /dev/tty0 c 4 0
+mknod /dev/tty1 c 4 1
+mknod /dev/tty2 c 4 2
+mknod /dev/tty3 c 4 3
+mknod /dev/tty4 c 4 4
+mknod /dev/tty5 c 4 5
+mknod /dev/tty6 c 4 6
+mknod /dev/tty7 c 4 7
+mknod /dev/tty8 c 4 8
+mknod /dev/tty9 c 4 9
+mknod /dev/tty10 c 4 10
+mknod /dev/tty11 c 4 11
+mknod /dev/tty12 c 4 12
+mknod /dev/ttyS0 c 4 64
+mknod /dev/ttyS1 c 4 65
+mknod /dev/ttyS2 c 4 66
+mknod /dev/ttyS3 c 4 67
+
+mkdir /tmp
+exec /sbin/init