mirror of
https://git.yoctoproject.org/poky
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9bdc5a0129
git-svn-id: https://svn.o-hand.com/repos/poky/trunk@5173 311d38ba-8fff-0310-9ca6-ca027cbcb966
71 lines
1.2 KiB
Bash
71 lines
1.2 KiB
Bash
#!/bin/sh
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ROOT_MOUNT="/rootfs/"
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ROOT_IMAGE=rootfs.img
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MOUNT="/bin/mount"
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UMOUNT="/bin/umount"
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early_setup() {
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mkdir /proc
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mount -t proc proc /proc
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udevd --daemon
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}
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read_args() {
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[ -z "$CMDLINE" ] && CMDLINE=`cat /proc/cmdline`
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for arg in $CMDLINE; do
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optarg=`expr "x$arg" : 'x[^=]*=\(.*\)'`
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case $arg in
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root=*)
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ROOT_DEVICE=$optarg ;;
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rootfstype=*)
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ROOT_FSTYPE=$optarg ;;
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rootdelay=*)
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rootdelay=$optarg ;;
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esac
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done
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}
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boot_live_root() {
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killall udevd
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cd $ROOT_MOUNT
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exec switch_root -c /dev/console $ROOT_MOUNT /sbin/init
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}
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fatal() {
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echo $1 >$CONSOLE
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echo >$CONSOLE
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exec sh
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}
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echo "Starting initramfs boot..."
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early_setup
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[ -z "$CONSOLE" ] && CONSOLE="/dev/console"
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read_args
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echo "Waiting for Live image to show up..."
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while true
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do
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for i in `ls /media 2>/dev/null`; do
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if [ -f /media/$i/$ROOT_IMAGE ] ; then
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found="yes"
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fi
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done
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if [ "$found" = "yes" ]; then
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break;
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fi
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sleep 1
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done
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mkdir $ROOT_MOUNT
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mknod /dev/loop0 b 7 0
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if ! $MOUNT -o rw,loop,noatime,nodiratime /media/$i/$ROOT_IMAGE $ROOT_MOUNT
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then
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fatal "Couldnt mount rootfs image"
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else
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boot_live_root
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fi
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