slitaz-boot-scripts annotate init @ rev 310

/etc/init.d/rcS, /init: use /run
author Pascal Bellard <pascal.bellard@slitaz.org>
date Sat Jun 02 14:31:16 2012 +0200 (2012-06-02)
parents 6ea85ee8bde8
children b59d773e1de8
rev   line source
pascal@276 1 #!/bin/sh
pascal@276 2
pascal@278 3 success()
pascal@278 4 {
pascal@310 5 cat > /run/init
pascal@278 6 [ -d /proc/sys ] && umount /proc
pascal@278 7 echo -e "\\033[70G[ \\033[1;32mOK\\033[0;39m ]"
pascal@278 8 exit
pascal@278 9 }
pascal@278 10
pascal@276 11 launch_init()
pascal@276 12 {
pascal@310 13 mount --move /run /mnt/run
pascal@278 14 success <<EOT
pascal@276 15 exec /sbin/switch_root mnt /sbin/init
pascal@276 16 EOT
pascal@276 17 }
pascal@276 18
pascal@276 19 failed()
pascal@276 20 {
pascal@276 21 umount /proc
pascal@276 22 echo -e "\\033[70G[ \\033[1;31mFailed\\033[0;39m ]"
pascal@276 23 }
pascal@276 24
pascal@276 25 try_init()
pascal@276 26 {
pascal@276 27 if [ ! -d /mnt/etc ] && grep -q cryptoroot= /proc/cmdline; then
pascal@276 28 modprobe dm-mod
pascal@276 29 modprobe dm-crypt
pascal@276 30 modprobe aes-i586
pascal@276 31 root="$(sed 's/.*cryptoroot=\([^ ]*\).*/\1/' < /proc/cmdline)"
pascal@276 32 dev=${root#/dev/}
pascal@276 33 dmlabel=crypto-$dev
pascal@276 34 if cryptsetup isLuks $root 2> /dev/null; then
pascal@276 35 cryptsetup luksOpen $root $dmlabel
pascal@276 36 else
pascal@276 37 read -s -t 60 -p "Pass phrase : " passphrase
pascal@276 38 key=$(echo $passphrase | hashalot -x -n 32 sha512)
pascal@276 39 blocks=$(cat $(find /sys/block | grep /$dev/size))
pascal@276 40 echo 0 $blocks crypt aes-plain $key 0 $root 0 | \
pascal@276 41 dmsetup create $dmlabel
pascal@276 42 fi
pascal@276 43 mount /dev/mapper/$dmlabel /mnt
pascal@276 44 fi
pascal@284 45 grep -q subroot= /proc/cmdline && return
pascal@284 46 grep -q loopfs= /proc/cmdline && return
pascal@276 47 if [ -d /mnt/etc ]; then
pascal@276 48 umount /sys
pascal@276 49 [ -n "$1" ] && for i in $@ ; do
pascal@276 50 cp -a $i /mnt$(dirname $i)
pascal@276 51 done
pascal@276 52 mount /mnt -o remount,ro
pascal@276 53 launch_init
pascal@276 54 fi
pascal@276 55 failed
pascal@276 56 }
pascal@276 57
pascal@276 58 mount_mapper()
pascal@276 59 {
pascal@276 60 mount $root /mnt
pascal@276 61 try_init /dev/mapper $@
pascal@276 62 }
pascal@276 63
pascal@276 64 lvmsetup()
pascal@276 65 {
pascal@276 66 grep -q lvmroot= /proc/cmdline || return 1
pascal@276 67 modprobe dm-mod
pascal@276 68 vgscan --ignorelockingfailure
pascal@276 69 vgchange -ay --ignorelockingfailure
pascal@276 70 root="/dev/mapper/$(sed 's/.*lvmroot=\([^ ]*\).*/\1/' < /proc/cmdline)"
pascal@276 71 return 0
pascal@276 72 }
pascal@276 73
pascal@276 74 load_raid()
pascal@276 75 {
pascal@276 76 while read line; do
pascal@276 77 case "$line" in
pascal@276 78 *raid10*) modprobe raid10 ;;
pascal@276 79 *raid0*) modprobe raid0 ;;
pascal@293 80 *raid1*) modprobe raid1 ;;
pascal@276 81 *raid[456]*) modprobe raid456 ;;
pascal@293 82 *mirror*) modprobe dm-mirror ;;
pascal@276 83 esac
pascal@276 84 done
pascal@276 85 }
pascal@276 86
pascal@276 87 if [ "$1" != "logged" ]; then
pascal@310 88 mount -t tmpfs tmpfs /run
pascal@310 89 /init logged 2>&1 | tee /run/boot.log
pascal@310 90 . /run/init
pascal@276 91 else
pascal@276 92 mount -t proc proc /proc
pascal@276 93 mount -t sysfs sysfs /sys
pascal@276 94 if grep -q dmraid= /proc/cmdline; then
pascal@276 95 root="$(sed 's/.*dmraid=\([^ ]*\).*/\1/' < /proc/cmdline)"
pascal@278 96 echo -n "Switching / to dmraid $root..."
pascal@276 97 dmraid -s | grep ^type | awk '{ print $3 }' | load_raid
pascal@276 98 case "$root" in
pascal@276 99 /dev/*);;
pascal@276 100 *) root=/dev/mapper/$(dmraid -s|grep ^name|awk '{print $3}')p${root#p};;
pascal@276 101 esac
pascal@276 102 dmraid -ay
pascal@276 103 lvmsetup
pascal@276 104 mount_mapper
pascal@276 105 fi
pascal@276 106 if grep -q softraid= /proc/cmdline; then
pascal@276 107 root="$(sed 's/.*softraid=\([^ ]*\).*/\1/' < /proc/cmdline)"
pascal@278 108 echo -n "Switching / to softraid $root..."
pascal@276 109 mdadm --examine --scan --config=partitions > /etc/mdadm.conf
pascal@276 110 grep -qs " $root " /etc/mdadm.conf ||
pascal@276 111 root=$(awk '/dev.md/ { print $2; exit }' < /etc/mdadm.conf)
pascal@276 112 grep level=raid /etc/mdadm.conf | load_raid
pascal@276 113 for i in 1 2 3 4 5 6 7 8 9; do
pascal@276 114 sleep $i
pascal@276 115 mdadm --assemble --scan
pascal@276 116 grep -qs ': active' /proc/mdstat && break
pascal@276 117 done
pascal@276 118 lvmsetup
pascal@276 119 mount_mapper /etc/mdadm.conf
pascal@276 120 fi
pascal@276 121 if lvmsetup; then
pascal@278 122 echo -n "Switching / to lvm $root..."
pascal@276 123 mount_mapper
pascal@276 124 fi
pascal@276 125 if grep -q mount= /proc/cmdline; then
pascal@276 126 root="$(sed 's/.*mount=\([^ ]*\).*/\1/' < /proc/cmdline)"
pascal@276 127 dev=$(blkid | grep $root | sed 's/:.*//;q')
pascal@292 128 [ "$dev" = "$root" ] || root="$dev ($root)"
pascal@292 129 echo "Mounting $root ..."
pascal@276 130 if ! mount $dev /mnt; then
pascal@276 131 if echo $dev | grep -q "/dev/sd"; then
pascal@276 132 delay=`cat /sys/module/usb_storage/parameters/delay_use`
pascal@276 133 delay=$((1+$delay))
pascal@276 134 echo -n "sleep for $delay seconds..."
pascal@276 135 sleep $delay
pascal@276 136 fi
pascal@276 137 mount $dev /mnt
pascal@276 138 fi
pascal@278 139 grep -q posixovl /proc/cmdline &&
pascal@278 140 echo "Mounting posixovl.." &&
pascal@278 141 mount.posixovl /mnt
pascal@276 142 fi
pascal@276 143 if grep -q loopfs= /proc/cmdline; then
pascal@276 144 loopfs="$(sed 's/.*loopfs=\([^ ]*\).*/\1/' < /proc/cmdline)"
pascal@278 145 echo "Into loop file $loopfs..."
pascal@276 146 losetup /dev/loop0 /mnt/$loopfs
pascal@276 147 mount /dev/loop0 /mnt 2> /dev/null
pascal@276 148 fi
pascal@276 149 if grep -q bindfs= /proc/cmdline; then
pascal@276 150 bind="$(sed 's/.*bindfs=\([^ ]*\).*/\1/' < /proc/cmdline)"
pascal@278 151 echo "Binding ${bind/,/ to } ..."
pascal@276 152 mount --bind /mnt/${bind%,*} /mnt/${bind%,*}/${bind#*,}
pascal@276 153 fi
pascal@276 154 grep -q cryptoroot= /proc/cmdline && try_init
pascal@276 155 umount /sys
pascal@276 156 if grep -q subroot= /proc/cmdline; then
pascal@276 157 subroot="/$(sed 's/.*subroot=\([^ ]*\).*/\1/' < /proc/cmdline)" &&
pascal@278 158 echo -n "Chrooting to $subroot..."
pascal@278 159 mount --move /dev/pts /mnt$subroot/dev/pts
pascal@310 160 run=$subroot/run
pascal@310 161 mount --move /run /mnt$run
pascal@288 162 cp $(LD_TRACE_LOADED_OBJECTS=1 /lib/ld*.so /usr/sbin/chroot | sed \
pascal@310 163 's|.*=> \(/lib/l[^ ]*\).*|\1|;/^\//!d') /usr/sbin/chroot /mnt$run
pascal@288 164 success <<EOT
pascal@310 165 export LD_LIBRARY_PATH=$run:/lib
pascal@310 166 exec /sbin/switch_root mnt $run/$(cd /mnt$run ; ls ld-*) $run/chroot $subroot /sbin/init
pascal@278 167 EOT
pascal@276 168 fi
pascal@278 169 echo -n "Switching / to tmpfs"
pascal@276 170 size="$(grep rootfssize= < /proc/cmdline | \
pascal@276 171 sed 's/.*rootfssize=\([0-9]*[kmg%]\).*/-o size=\1/')"
pascal@276 172 free=$(busybox free | busybox awk '/Mem:/ { print int(($4*100)/$3) }')
pascal@276 173 umount /proc
pascal@276 174 [ -n "$size" ] || size="-o size=90%"
pascal@310 175 echo "exec /sbin/init" > /run/init
pascal@295 176 if [ $free -lt 100 ] || ! mount -t tmpfs $size tmpfs /mnt; then
pascal@276 177 echo -e "\\033[70G[ \\033[1;33mSkipped\\033[0;39m]"
pascal@276 178 exit
pascal@276 179 fi
pascal@278 180 for i in $(ls -ar /); do
pascal@276 181 case "$i" in
pascal@276 182 .|..) ;;
pascal@276 183 mnt) mkdir /mnt/mnt;;
pascal@278 184 usr|var) mv /$i /mnt ;;
pascal@276 185 *) if ! cp -a /$i /mnt 2> /dev/null; then
pascal@276 186 failed
pascal@276 187 umount /mnt
pascal@276 188 exit
pascal@276 189 fi;;
pascal@276 190 esac
pascal@276 191 done
pascal@276 192 launch_init
pascal@276 193 fi