[Hackndev-commit] SF.net SVN: hackndev: [537] linux4palm

[<bob...@us...>]

Revision: 537
Author:   bobofdoom
Date:     2006-08-09 02:09:27 -0700 (Wed, 09 Aug 2006)
ViewCVS:  http://svn.sourceforge.net/hackndev/?rev=537&view=rev

Log Message:
-----------
Initial import of Cris' initramfs scripts.

Added Paths:
-----------
    linux4palm/initramfs/
    linux4palm/initramfs/Makefile
    linux4palm/initramfs/files/
    linux4palm/initramfs/files/etc/
    linux4palm/initramfs/files/etc/modules.initrd
    linux4palm/initramfs/files/init
    linux4palm/initramfs/svn-commit.tmp
Added: linux4palm/initramfs/Makefile
===================================================================
--- linux4palm/initramfs/Makefile	                        (rev 0)
+++ linux4palm/initramfs/Makefile	2006-08-09 09:09:27 UTC (rev 537)
@@ -0,0 +1,3 @@
+# TODO;
+# Build an initramfs image from busybox source.
+# Using klibc if possible for nice smallness.

Added: linux4palm/initramfs/files/etc/modules.initrd
===================================================================
--- linux4palm/initramfs/files/etc/modules.initrd	                        (rev 0)
+++ linux4palm/initramfs/files/etc/modules.initrd	2006-08-09 09:09:27 UTC (rev 537)
@@ -0,0 +1,3 @@
+fat.ko
+vfat.ko
+loop.ko


Property changes on: linux4palm/initramfs/files/etc/modules.initrd
___________________________________________________________________
Name: svn:executable
   + 

Added: linux4palm/initramfs/files/init
===================================================================
--- linux4palm/initramfs/files/init	                        (rev 0)
+++ linux4palm/initramfs/files/init	2006-08-09 09:09:27 UTC (rev 537)
@@ -0,0 +1,132 @@
+#!/bin/sh
+# $Id: $
+# authors: Cristiano P.
+#
+
+# TODO: echo only if VERBOSE
+# TODO: check the whole thing ...
+
+# defaults:
+VERBOSE=true
+FILES_DEV=/dev/mmcblk0p1
+FILES_MNT=/media/mmc1
+ROOT_DEV=$FILES_MNT/opie-image-v0.8.4-rc3-palmtx.rootfs.ext2
+#ROOT_DEV=/dev/mmcblk0p5
+#SWAP_DEV=$CARD_MNT/swap.fs
+SWAP_DEV=/dev/mmcblk0p7
+
+MODULES_DIR="/lib/modules"
+POST_MODULES_SCRIPT=""
+
+echo initram init started
+
+
+if [ -f /etc/modules.initrd ]; then
+  echo loading initial modules
+  cat /etc/modules.initrd | while read module; do
+    echo loading module: $module
+    /sbin/insmod $MODULES_DIR/$module > /dev/null
+  done
+fi
+
+echo mounting sysfs
+#mount -n -t sysfs none /sys
+mount -n -t sysfs sys /sys >/dev/null 2>&1 || mount -t sysfs sys /sys
+
+echo mounting proc filesystem
+#mount -n -t proc /proc
+mount -n -t proc none /proc >/dev/null  2>&1 || mount -t proc none /proc
+
+if [ -b $FILES_DEV ]; then 
+  echo -n "linux.boot.cfg on $FILES_DEV: "
+  /bin/mount -n -t vfat -o rw $FILES_DEV $FILES_MNT
+  /bin/sleep 1
+  # todo: check parameters/files?
+  if [ -f $FILES_MNT/linux.boot.cfg ]; then
+    echo found.
+    .  $FILES_MNT/linux.boot.cfg
+
+    if [ -f $FILES_MNT/modules.initrd ]; then
+      echo loading additional modules now:
+      cat $FILES_MNT/modules.initrd | while read module; do
+        loading module: $module
+        /sbin/insmod $MODULES_DIR/$module > /dev/null
+      done
+    fi
+
+  else
+    echo not found.
+  fi
+else
+  echo fat16 partition not found.
+fi
+
+
+# this script could be used to update the rootfs before booting familiar (new modules, scripts, config, ...)
+echo -n "post_module script: "
+if [ -n "$POST_MODULES_SCRIPT" ]; then
+  if [ -f "$POST_MODULES_SCRIPT" ]; then
+    echo found $POST_MODULES_SCRIPT .
+    $POST_MODULES_SCRIPT
+  fi
+else
+  echo not found.
+fi
+
+# probably swap should/can be enabled by familiar
+# is it the right place to mount swap?
+if [ -n "$SWAP_DEV" ]; then
+  echo -n "mount swap at $SWAP_DEV: "
+
+  if [ -f $SWAP_DEV -o -b $SWAP_DEV ]; then
+    /sbin/swapon $SWAP_DEV > /dev/null 2>&1
+    echo done.
+  else
+    echo not found.
+  fi
+fi
+
+
+echo attempting to mount rootfs [$ROOT_DEV]
+
+ROOT_MOUNTED=true
+UMOUNT_MMC=true
+
+if [ -f $ROOT_DEV ]; then
+  #echo 0x702 > /proc/sys/kernel/real-root-dev
+  mount -n $ROOT_DEV /newroot -o rw loop 2>/dev/null
+  [ $? ] || ROOT_MOUNTED=false
+  UMOUNT_MMC=false
+elif [ -b $ROOT_DEV ]; then
+  mount -n $ROOT_DEV /newroot -o rw 2>/dev/null
+  [ $? ] || ROOT_MOUNTED=false
+else
+  ROOT_MOUNTED=false
+fi
+
+# probably this is not anymore needed here ... umount and free memory
+if [ $UMOUNT_MMC = "true" ]; then
+  umount $FILES_MNT
+fi
+
+# TODO: should initial /dev (/oldroot/dev) be unmounted after init by GPE?
+if [ $ROOT_MOUNTED = "true" ]; then
+  echo root fs mounted
+
+  # force umount sys and proc (otherwise we'll find them mounted twice)
+  umount -l /sys
+  umount -l /proc
+
+  # method 2: use switch_root (needs initramfs)
+  exec /sbin/switch_root -c /dev/console /newroot /sbin/init 5
+
+  echo "*  * * chroot failed!  * * *"
+else
+  echo could not mount root fs: init failed!
+  echo please, reset, check your configuration and retry.
+  sleep 100000
+fi
+
+# TODO: run ezhikov's keyshell here?
+exec /bin/sh
+


Property changes on: linux4palm/initramfs/files/init
___________________________________________________________________
Name: svn:executable
   + 

Added: linux4palm/initramfs/svn-commit.tmp
===================================================================
--- linux4palm/initramfs/svn-commit.tmp	                        (rev 0)
+++ linux4palm/initramfs/svn-commit.tmp	2006-08-09 09:09:27 UTC (rev 537)
@@ -0,0 +1,4 @@
+Initial import of Cris' initramfs scripts.
+--This line, and those below, will be ignored--
+
+A    .


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