initramfs-jffs2: Initramfs to boot from jffs2 ramdisk.

* jffs2 ramdisk == mtdram device
* jffs2 is included in initramfs
* This is core of LiveRamdisk technology

3 files changed, 26 insertions, 0 deletions

diff --git a/packages/initrdscripts/initramfs-jffs2/.mtn2git_empty b/packages/initrdscripts/initramfs-jffs2/.mtn2git_empty
new file mode 100644
index 0000000000..e69de29bb2
--- /dev/null
+++ b/packages/initrdscripts/initramfs-jffs2/.mtn2git_empty
diff --git a/packages/initrdscripts/initramfs-jffs2/jffs2boot.sh b/packages/initrdscripts/initramfs-jffs2/jffs2boot.sh
new file mode 100644
index 0000000000..81077eeae5
--- /dev/null
+++ b/packages/initrdscripts/initramfs-jffs2/jffs2boot.sh
@@ -0,0 +1,18 @@
+#!/bin/sh
+
+echo "Starting initrd boot..."
+mkdir /proc
+mount -t proc proc /proc
+
+modprobe mtdram total_size=24576 erase_size=256
+sleep 1
+
+ID=`grep "mtdram test device" /proc/mtd | cut -d: -f1| cut -b4-`
+
+cat /initrd.jffs2 >/dev/mtdblock$ID
+
+mkdir /mnt
+mount -t jffs2 /dev/mtdblock$ID /mnt
+
+cd /mnt
+exec switch_root -c /dev/console /mnt /sbin/init
diff --git a/packages/initrdscripts/initramfs-jffs2_0.1.bb b/packages/initrdscripts/initramfs-jffs2_0.1.bb
new file mode 100644
index 0000000000..78034c99c9
--- /dev/null
+++ b/packages/initrdscripts/initramfs-jffs2_0.1.bb
@@ -0,0 +1,8 @@
+SRC_URI = "file://jffs2boot.sh"
+PR = "r0"
+
+do_install() {
+        install -m 0755 ${WORKDIR}/jffs2boot.sh ${D}/init
+}
+
+FILES_${PN} += " /init "