| 1 | #!/bin/sh |
| 2 | # Copyright (C) 2006 OpenWrt.org |
| 3 | |
| 4 | INITRAMFS=1 |
| 5 | |
| 6 | . /etc/preinit |
| 7 | |
| 8 | set_state init |
| 9 | echo "- init -" |
| 10 | |
| 11 | # if we have no root parameter, just go to running from ramfs |
| 12 | [ -z $rootfs ] && { |
| 13 | export NOMOUNT="No Root" |
| 14 | exec /sbin/init |
| 15 | } |
| 16 | |
| 17 | #if we have a failsafe boot selected, dont bother |
| 18 | #trying to find or wait for a root mount point |
| 19 | [ -z "$FAILSAFE" ] || { |
| 20 | exec /bin/busybox init |
| 21 | } |
| 22 | |
| 23 | # Load the modules we have in initramfs, this should |
| 24 | # make the media accessible, but, it may take some time |
| 25 | . /etc/functions.sh |
| 26 | load_modules /etc/modules /etc/modules.d/* |
| 27 | |
| 28 | #wait 10 seconds for the disc to show up |
| 29 | #usb stick typically takes 4 to 6 seconds |
| 30 | #till it's readable |
| 31 | #it's quite possible the disc never shows up |
| 32 | #if we netbooted this kernel |
| 33 | COUNTER=0 |
| 34 | while [ $COUNTER -lt 10 ]; do |
| 35 | sleep 1 |
| 36 | [ -e $rootfs ] && let COUNTER=10; |
| 37 | let COUNTER=COUNTER+1 |
| 38 | done |
| 39 | [ -e $rootfs ] || { |
| 40 | export FAILSAFE="NoDisc" |
| 41 | exec /bin/busybox init |
| 42 | } |
| 43 | |
| 44 | # now we'll try mount it, again with a timeout |
| 45 | # This will fail if the inserted stick is formatted |
| 46 | # in a manner we dont understand |
| 47 | COUNTER=0 |
| 48 | while [ $COUNTER -lt 10 ]; do |
| 49 | sleep 1 |
| 50 | mount $rootfs /mnt |
| 51 | [ $? -eq "0" ] && let COUNTER=100; |
| 52 | let COUNTER=COUNTER+1 |
| 53 | done |
| 54 | [ $? -ne "0" ] && { |
| 55 | export FAILSAFE="MountFail" |
| 56 | exec /bin/busybox init |
| 57 | } |
| 58 | |
| 59 | #It mounted, lets look for a postinit file, again, give it time |
| 60 | #I've seen this take 6 seconds to actually complete |
| 61 | COUNTER=0 |
| 62 | while [ $COUNTER -lt 10 ]; do |
| 63 | sleep 1 |
| 64 | [ -e /mnt/etc/banner ] && let COUNTER=10; |
| 65 | let COUNTER=COUNTER+1 |
| 66 | done |
| 67 | [ -e /mnt/etc/banner ] || { |
| 68 | export FAILSAFE="No Openwrt FS" |
| 69 | exec /bin/busybox init |
| 70 | } |
| 71 | |
| 72 | unset rootfs |
| 73 | |
| 74 | mount -o move /proc /mnt/proc |
| 75 | mount -o move /dev /mnt/dev |
| 76 | mount -o move /dev/pts /mnt/dev/pts |
| 77 | mount -o move /tmp /mnt/tmp |
| 78 | mount -o move /sys /mnt/sys |
| 79 | mount none /tmp -t tmpfs |
| 80 | killall -q hotplug2 |
| 81 | exec switch_root -c /dev/console /mnt /sbin/init |
| 82 | |
| 83 | set_state done |
| 84 | |
