slitaz-boot-scripts annotate init @ rev 278

init: fix subdir case
author Pascal Bellard <pascal.bellard@slitaz.org>
date Thu Jan 26 09:24:31 2012 +0100 (2012-01-26)
parents 9650e8bd017e
children 11f87b20a969
rev   line source
pascal@276 1 #!/bin/sh
pascal@276 2
pascal@278 3 success()
pascal@278 4 {
pascal@278 5 cat > /dev/shm/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@278 13 mount --move /dev/pts /mnt/dev/pts
pascal@278 14 mount --move /dev/shm /mnt/dev/shm
pascal@278 15 success <<EOT
pascal@276 16 exec /sbin/switch_root mnt /sbin/init
pascal@276 17 EOT
pascal@276 18 }
pascal@276 19
pascal@276 20 failed()
pascal@276 21 {
pascal@276 22 umount /proc
pascal@276 23 echo -e "\\033[70G[ \\033[1;31mFailed\\033[0;39m ]"
pascal@276 24 }
pascal@276 25
pascal@276 26 try_init()
pascal@276 27 {
pascal@276 28 if [ ! -d /mnt/etc ] && grep -q cryptoroot= /proc/cmdline; then
pascal@276 29 modprobe dm-mod
pascal@276 30 modprobe dm-crypt
pascal@276 31 modprobe aes-i586
pascal@276 32 root="$(sed 's/.*cryptoroot=\([^ ]*\).*/\1/' < /proc/cmdline)"
pascal@276 33 dev=${root#/dev/}
pascal@276 34 dmlabel=crypto-$dev
pascal@276 35 if cryptsetup isLuks $root 2> /dev/null; then
pascal@276 36 cryptsetup luksOpen $root $dmlabel
pascal@276 37 else
pascal@276 38 read -s -t 60 -p "Pass phrase : " passphrase
pascal@276 39 key=$(echo $passphrase | hashalot -x -n 32 sha512)
pascal@276 40 blocks=$(cat $(find /sys/block | grep /$dev/size))
pascal@276 41 echo 0 $blocks crypt aes-plain $key 0 $root 0 | \
pascal@276 42 dmsetup create $dmlabel
pascal@276 43 fi
pascal@276 44 mount /dev/mapper/$dmlabel /mnt
pascal@276 45 fi
pascal@276 46 if [ -d /mnt/etc ]; then
pascal@276 47 umount /sys
pascal@276 48 [ -n "$1" ] && for i in $@ ; do
pascal@276 49 cp -a $i /mnt$(dirname $i)
pascal@276 50 done
pascal@276 51 mount /mnt -o remount,ro
pascal@276 52 launch_init
pascal@276 53 fi
pascal@276 54 failed
pascal@276 55 }
pascal@276 56
pascal@276 57 mount_mapper()
pascal@276 58 {
pascal@276 59 mount $root /mnt
pascal@276 60 try_init /dev/mapper $@
pascal@276 61 }
pascal@276 62
pascal@276 63 lvmsetup()
pascal@276 64 {
pascal@276 65 grep -q lvmroot= /proc/cmdline || return 1
pascal@276 66 modprobe dm-mod
pascal@276 67 vgscan --ignorelockingfailure
pascal@276 68 vgchange -ay --ignorelockingfailure
pascal@276 69 root="/dev/mapper/$(sed 's/.*lvmroot=\([^ ]*\).*/\1/' < /proc/cmdline)"
pascal@276 70 return 0
pascal@276 71 }
pascal@276 72
pascal@276 73 load_raid()
pascal@276 74 {
pascal@276 75 while read line; do
pascal@276 76 case "$line" in
pascal@276 77 *raid10*) modprobe raid10 ;;
pascal@276 78 *raid0*) modprobe raid0 ;;
pascal@276 79 *raid1*) modprobe raid1 ;;
pascal@276 80 *raid[456]*) modprobe raid456 ;;
pascal@276 81 esac
pascal@276 82 done
pascal@276 83 }
pascal@276 84
pascal@276 85 if [ "$1" != "logged" ]; then
pascal@276 86 mount -t devpts devpts /dev/pts
pascal@276 87 mount -t tmpfs tmpfs /dev/shm
pascal@276 88 script -qc '/init logged' /dev/shm/boot.log
pascal@276 89 . /dev/shm/init
pascal@276 90 else
pascal@276 91 mount -t proc proc /proc
pascal@276 92 mount -t sysfs sysfs /sys
pascal@276 93 if grep -q dmraid= /proc/cmdline; then
pascal@276 94 root="$(sed 's/.*dmraid=\([^ ]*\).*/\1/' < /proc/cmdline)"
pascal@278 95 echo -n "Switching / to dmraid $root..."
pascal@276 96 dmraid -s | grep ^type | awk '{ print $3 }' | load_raid
pascal@276 97 case "$root" in
pascal@276 98 /dev/*);;
pascal@276 99 *) root=/dev/mapper/$(dmraid -s|grep ^name|awk '{print $3}')p${root#p};;
pascal@276 100 esac
pascal@276 101 dmraid -ay
pascal@276 102 lvmsetup
pascal@276 103 mount_mapper
pascal@276 104 fi
pascal@276 105 if grep -q softraid= /proc/cmdline; then
pascal@276 106 root="$(sed 's/.*softraid=\([^ ]*\).*/\1/' < /proc/cmdline)"
pascal@278 107 echo -n "Switching / to softraid $root..."
pascal@276 108 mdadm --examine --scan --config=partitions > /etc/mdadm.conf
pascal@276 109 grep -qs " $root " /etc/mdadm.conf ||
pascal@276 110 root=$(awk '/dev.md/ { print $2; exit }' < /etc/mdadm.conf)
pascal@276 111 grep level=raid /etc/mdadm.conf | load_raid
pascal@276 112 for i in 1 2 3 4 5 6 7 8 9; do
pascal@276 113 sleep $i
pascal@276 114 mdadm --assemble --scan
pascal@276 115 grep -qs ': active' /proc/mdstat && break
pascal@276 116 done
pascal@276 117 lvmsetup
pascal@276 118 mount_mapper /etc/mdadm.conf
pascal@276 119 fi
pascal@276 120 if lvmsetup; then
pascal@278 121 echo -n "Switching / to lvm $root..."
pascal@276 122 mount_mapper
pascal@276 123 fi
pascal@276 124 if grep -q mount= /proc/cmdline; then
pascal@276 125 root="$(sed 's/.*mount=\([^ ]*\).*/\1/' < /proc/cmdline)"
pascal@276 126 dev=$(blkid | grep $root | sed 's/:.*//;q')
pascal@278 127 echo "Mounting $dev ($root) ..."
pascal@276 128 if ! mount $dev /mnt; then
pascal@276 129 if echo $dev | grep -q "/dev/sd"; then
pascal@276 130 delay=`cat /sys/module/usb_storage/parameters/delay_use`
pascal@276 131 delay=$((1+$delay))
pascal@276 132 echo -n "sleep for $delay seconds..."
pascal@276 133 sleep $delay
pascal@276 134 fi
pascal@276 135 mount $dev /mnt
pascal@276 136 fi
pascal@278 137 grep -q posixovl /proc/cmdline &&
pascal@278 138 echo "Mounting posixovl.." &&
pascal@278 139 mount.posixovl /mnt
pascal@276 140 fi
pascal@276 141 if grep -q loopfs= /proc/cmdline; then
pascal@276 142 loopfs="$(sed 's/.*loopfs=\([^ ]*\).*/\1/' < /proc/cmdline)"
pascal@278 143 echo "Into loop file $loopfs..."
pascal@276 144 losetup /dev/loop0 /mnt/$loopfs
pascal@276 145 mount /dev/loop0 /mnt 2> /dev/null
pascal@276 146 fi
pascal@276 147 if grep -q bindfs= /proc/cmdline; then
pascal@276 148 bind="$(sed 's/.*bindfs=\([^ ]*\).*/\1/' < /proc/cmdline)"
pascal@278 149 echo "Binding ${bind/,/ to } ..."
pascal@276 150 mount --bind /mnt/${bind%,*} /mnt/${bind%,*}/${bind#*,}
pascal@276 151 fi
pascal@276 152 grep -q cryptoroot= /proc/cmdline && try_init
pascal@276 153 umount /sys
pascal@276 154 if grep -q subroot= /proc/cmdline; then
pascal@276 155 subroot="/$(sed 's/.*subroot=\([^ ]*\).*/\1/' < /proc/cmdline)" &&
pascal@278 156 echo -n "Chrooting to $subroot..."
pascal@278 157 mount --move /dev/pts /mnt$subroot/dev/pts
pascal@278 158 shm=$subroot/dev/shm
pascal@278 159 mount --move /dev/shm /mnt$shm
pascal@278 160 if mv /usr/share/boot/busybox-static /mnt$shm 2> /dev/null; then
pascal@278 161 success <<EOT
pascal@278 162 exec /sbin/switch_root mnt $shm/busybox-static chroot $subroot /sbin/init
pascal@278 163 EOT
pascal@276 164 else
pascal@278 165 success <<EOT
pascal@278 166 exec chroot /mnt$subroot /sbin/init
pascal@278 167 EOT
pascal@276 168 fi
pascal@276 169 fi
pascal@278 170 echo -n "Switching / to tmpfs"
pascal@276 171 size="$(grep rootfssize= < /proc/cmdline | \
pascal@276 172 sed 's/.*rootfssize=\([0-9]*[kmg%]\).*/-o size=\1/')"
pascal@276 173 free=$(busybox free | busybox awk '/Mem:/ { print int(($4*100)/$3) }')
pascal@276 174 umount /proc
pascal@276 175 [ -n "$size" ] || size="-o size=90%"
pascal@276 176 echo "exec /sbin/init" > /dev/shm/init
pascal@278 177 if [ $free -lt 50 ] || ! mount -t tmpfs $size tmpfs /mnt; then
pascal@276 178 echo -e "\\033[70G[ \\033[1;33mSkipped\\033[0;39m]"
pascal@276 179 exit
pascal@276 180 fi
pascal@278 181 for i in $(ls -ar /); do
pascal@276 182 case "$i" in
pascal@276 183 .|..) ;;
pascal@276 184 mnt) mkdir /mnt/mnt;;
pascal@278 185 usr|var) mv /$i /mnt ;;
pascal@276 186 *) if ! cp -a /$i /mnt 2> /dev/null; then
pascal@276 187 failed
pascal@276 188 umount /mnt
pascal@276 189 exit
pascal@276 190 fi;;
pascal@276 191 esac
pascal@276 192 done
pascal@276 193 launch_init
pascal@276 194 fi