Signed-off-by: John Crispin <blogic@openwrt.org> SVN-Revision: 36002master
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#!/bin/sh |
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# Copyright (C) 2006 OpenWrt.org |
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INITRAMFS=1 |
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. /etc/preinit |
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set_state init |
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echo "- init -" |
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[ -n "$SWITCH_ROOT_TMPFS" ] && { |
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mount -o noatime none /mnt -t tmpfs |
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( cd /; find -xdev -type d ) | ( cd /mnt; xargs mkdir -p ) |
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find / \! -type d -xdev | tar -cT /proc/self/fd/0 | tar -xC /mnt |
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mkdir /mnt/proc /mnt/dev /mnt/tmp /mnt/sys |
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mount -o noatime,move /proc /mnt/proc |
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mount -o noatime,move /dev /mnt/dev |
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mount -o noatime,move /tmp /mnt/tmp |
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mount -o noatime,move /sys /mnt/sys |
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rm -rf /proc /dev /tmp /sys |
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exec switch_root -c /dev/console /mnt /sbin/init |
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} |
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# if we have no root parameter, just go to running from ramfs |
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[ -z $rootfs ] && { |
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export NOMOUNT="No Root" |
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exec /sbin/init |
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} |
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#if we have a failsafe boot selected, dont bother |
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#trying to find or wait for a root mount point |
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[ -z "$FAILSAFE" ] || { |
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exec /bin/busybox init |
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} |
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# Load the modules we have in initramfs, this should |
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# make the media accessible, but, it may take some time |
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. /lib/functions.sh |
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load_modules /etc/modules /etc/modules.d/* |
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#wait 10 seconds for the disc to show up |
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#usb stick typically takes 4 to 6 seconds |
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#till it's readable |
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#it's quite possible the disc never shows up |
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#if we netbooted this kernel |
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COUNTER=0 |
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while [ $COUNTER -lt 10 ]; do |
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sleep 1 |
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[ -e $rootfs ] && let COUNTER=10; |
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let COUNTER=COUNTER+1 |
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done |
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[ -e $rootfs ] || { |
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export FAILSAFE="NoDisc" |
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exec /bin/busybox init |
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} |
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# now we'll try mount it, again with a timeout |
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# This will fail if the inserted stick is formatted |
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# in a manner we dont understand |
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COUNTER=0 |
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while [ $COUNTER -lt 10 ]; do |
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sleep 1 |
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mount -o noatime $rootfs /mnt |
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[ $? -eq "0" ] && let COUNTER=100; |
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let COUNTER=COUNTER+1 |
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done |
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[ $? -ne "0" ] && { |
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export FAILSAFE="MountFail" |
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exec /bin/busybox init |
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} |
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#It mounted, lets look for a postinit file, again, give it time |
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#I've seen this take 6 seconds to actually complete |
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COUNTER=0 |
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while [ $COUNTER -lt 10 ]; do |
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sleep 1 |
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[ -e /mnt/etc/banner ] && let COUNTER=10; |
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let COUNTER=COUNTER+1 |
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done |
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[ -e /mnt/etc/banner ] || { |
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export FAILSAFE="No Openwrt FS" |
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exec /bin/busybox init |
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} |
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unset rootfs |
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mount -o noatime,move /proc /mnt/proc |
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mount -o noatime,move /dev /mnt/dev |
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mount -o noatime,move /dev/pts /mnt/dev/pts |
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mount -o noatime,move /tmp /mnt/tmp |
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mount -o noatime,move /sys /mnt/sys |
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mount -o noatime none /tmp -t tmpfs |
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killall -q hotplug2 |
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exec switch_root -c /dev/console /mnt /sbin/init |
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set_state done |
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export INITRAMFS=1 |
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exec /sbin/init |
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