slitaz-boot-scripts annotate init @ rev 276

log from any boot console
author Pascal Bellard <pascal.bellard@slitaz.org>
date Tue Jan 24 11:30:41 2012 +0100 (2012-01-24)
parents
children b4cefa566cf7
rev   line source
pascal@276 1 #!/bin/sh
pascal@276 2
pascal@276 3 launch_init()
pascal@276 4 {
pascal@276 5 [ -d /proc/sys ] && umount /proc
pascal@276 6 echo -e "\\033[70G[ \\033[1;32mOK\\033[0;39m ]"
pascal@276 7 cat > /dev/shm/init <<EOT
pascal@276 8 mount --move /dev/pts /mnt/dev/pts
pascal@276 9 mount --move /dev/shm /mnt/dev/shm
pascal@276 10 exec /sbin/switch_root mnt /sbin/init
pascal@276 11 EOT
pascal@276 12 exit
pascal@276 13 }
pascal@276 14
pascal@276 15 failed()
pascal@276 16 {
pascal@276 17 umount /proc
pascal@276 18 echo -e "\\033[70G[ \\033[1;31mFailed\\033[0;39m ]"
pascal@276 19 }
pascal@276 20
pascal@276 21 try_init()
pascal@276 22 {
pascal@276 23 if [ ! -d /mnt/etc ] && grep -q cryptoroot= /proc/cmdline; then
pascal@276 24 modprobe dm-mod
pascal@276 25 modprobe dm-crypt
pascal@276 26 modprobe aes-i586
pascal@276 27 root="$(sed 's/.*cryptoroot=\([^ ]*\).*/\1/' < /proc/cmdline)"
pascal@276 28 dev=${root#/dev/}
pascal@276 29 dmlabel=crypto-$dev
pascal@276 30 if cryptsetup isLuks $root 2> /dev/null; then
pascal@276 31 cryptsetup luksOpen $root $dmlabel
pascal@276 32 else
pascal@276 33 read -s -t 60 -p "Pass phrase : " passphrase
pascal@276 34 key=$(echo $passphrase | hashalot -x -n 32 sha512)
pascal@276 35 blocks=$(cat $(find /sys/block | grep /$dev/size))
pascal@276 36 echo 0 $blocks crypt aes-plain $key 0 $root 0 | \
pascal@276 37 dmsetup create $dmlabel
pascal@276 38 fi
pascal@276 39 mount /dev/mapper/$dmlabel /mnt
pascal@276 40 fi
pascal@276 41 if [ -d /mnt/etc ]; then
pascal@276 42 umount /sys
pascal@276 43 [ -n "$1" ] && for i in $@ ; do
pascal@276 44 cp -a $i /mnt$(dirname $i)
pascal@276 45 done
pascal@276 46 mount /mnt -o remount,ro
pascal@276 47 launch_init
pascal@276 48 fi
pascal@276 49 failed
pascal@276 50 }
pascal@276 51
pascal@276 52 mount_mapper()
pascal@276 53 {
pascal@276 54 mount $root /mnt
pascal@276 55 try_init /dev/mapper $@
pascal@276 56 }
pascal@276 57
pascal@276 58 lvmsetup()
pascal@276 59 {
pascal@276 60 grep -q lvmroot= /proc/cmdline || return 1
pascal@276 61 modprobe dm-mod
pascal@276 62 vgscan --ignorelockingfailure
pascal@276 63 vgchange -ay --ignorelockingfailure
pascal@276 64 root="/dev/mapper/$(sed 's/.*lvmroot=\([^ ]*\).*/\1/' < /proc/cmdline)"
pascal@276 65 return 0
pascal@276 66 }
pascal@276 67
pascal@276 68 load_raid()
pascal@276 69 {
pascal@276 70 while read line; do
pascal@276 71 case "$line" in
pascal@276 72 *raid10*) modprobe raid10 ;;
pascal@276 73 *raid0*) modprobe raid0 ;;
pascal@276 74 *raid1*) modprobe raid1 ;;
pascal@276 75 *raid[456]*) modprobe raid456 ;;
pascal@276 76 esac
pascal@276 77 done
pascal@276 78 }
pascal@276 79
pascal@276 80 if [ "$1" != "logged" ]; then
pascal@276 81 mount -t devpts devpts /dev/pts
pascal@276 82 mount -t tmpfs tmpfs /dev/shm
pascal@276 83 script -qc '/init logged' /dev/shm/boot.log
pascal@276 84 . /dev/shm/init
pascal@276 85 else
pascal@276 86 mount -t proc proc /proc
pascal@276 87 mount -t sysfs sysfs /sys
pascal@276 88 echo -n "Switching / to "
pascal@276 89 if grep -q dmraid= /proc/cmdline; then
pascal@276 90 root="$(sed 's/.*dmraid=\([^ ]*\).*/\1/' < /proc/cmdline)"
pascal@276 91 echo -n "dmraid $root..."
pascal@276 92 dmraid -s | grep ^type | awk '{ print $3 }' | load_raid
pascal@276 93 case "$root" in
pascal@276 94 /dev/*);;
pascal@276 95 *) root=/dev/mapper/$(dmraid -s|grep ^name|awk '{print $3}')p${root#p};;
pascal@276 96 esac
pascal@276 97 dmraid -ay
pascal@276 98 lvmsetup
pascal@276 99 mount_mapper
pascal@276 100 fi
pascal@276 101 if grep -q softraid= /proc/cmdline; then
pascal@276 102 root="$(sed 's/.*softraid=\([^ ]*\).*/\1/' < /proc/cmdline)"
pascal@276 103 echo -n "softraid $root..."
pascal@276 104 mdadm --examine --scan --config=partitions > /etc/mdadm.conf
pascal@276 105 grep -qs " $root " /etc/mdadm.conf ||
pascal@276 106 root=$(awk '/dev.md/ { print $2; exit }' < /etc/mdadm.conf)
pascal@276 107 grep level=raid /etc/mdadm.conf | load_raid
pascal@276 108 for i in 1 2 3 4 5 6 7 8 9; do
pascal@276 109 sleep $i
pascal@276 110 mdadm --assemble --scan
pascal@276 111 grep -qs ': active' /proc/mdstat && break
pascal@276 112 done
pascal@276 113 lvmsetup
pascal@276 114 mount_mapper /etc/mdadm.conf
pascal@276 115 fi
pascal@276 116 if lvmsetup; then
pascal@276 117 echo -n "lvm $root..."
pascal@276 118 mount_mapper
pascal@276 119 fi
pascal@276 120 if grep -q mount= /proc/cmdline; then
pascal@276 121 root="$(sed 's/.*mount=\([^ ]*\).*/\1/' < /proc/cmdline)"
pascal@276 122 dev=$(blkid | grep $root | sed 's/:.*//;q')
pascal@276 123 echo -n "Mounting $dev ($root) ..."
pascal@276 124 if ! mount $dev /mnt; then
pascal@276 125 if echo $dev | grep -q "/dev/sd"; then
pascal@276 126 delay=`cat /sys/module/usb_storage/parameters/delay_use`
pascal@276 127 delay=$((1+$delay))
pascal@276 128 echo -n "sleep for $delay seconds..."
pascal@276 129 sleep $delay
pascal@276 130 fi
pascal@276 131 mount $dev /mnt
pascal@276 132 fi
pascal@276 133 grep -q posixovl /proc/cmdline && mount.posixovl /mnt
pascal@276 134 fi
pascal@276 135 if grep -q loopfs= /proc/cmdline; then
pascal@276 136 loopfs="$(sed 's/.*loopfs=\([^ ]*\).*/\1/' < /proc/cmdline)"
pascal@276 137 echo -n "loop $loopfs..."
pascal@276 138 losetup /dev/loop0 /mnt/$loopfs
pascal@276 139 mount /dev/loop0 /mnt 2> /dev/null
pascal@276 140 fi
pascal@276 141 if grep -q bindfs= /proc/cmdline; then
pascal@276 142 bind="$(sed 's/.*bindfs=\([^ ]*\).*/\1/' < /proc/cmdline)"
pascal@276 143 mount --bind /mnt/${bind%,*} /mnt/${bind%,*}/${bind#*,}
pascal@276 144 fi
pascal@276 145 grep -q cryptoroot= /proc/cmdline && try_init
pascal@276 146 umount /sys
pascal@276 147 if grep -q subroot= /proc/cmdline; then
pascal@276 148 subroot="/$(sed 's/.*subroot=\([^ ]*\).*/\1/' < /proc/cmdline)" &&
pascal@276 149 if [ -s /usr/share/boot/busybox-static ]; then
pascal@276 150 mv /usr/share/boot/busybox-static .
pascal@276 151 /busybox-static rm -rf /etc /lib /*bin /usr /var
pascal@276 152 echo "exec /busybox-static chroot /mnt$subroot /sbin/init" > /dev/shm/init
pascal@276 153 else
pascal@276 154 echo "exec chroot /mnt$subroot /sbin/init" > /dev/shm/init
pascal@276 155 fi
pascal@276 156 fi
pascal@276 157 echo -n "tmpfs..."
pascal@276 158 size="$(grep rootfssize= < /proc/cmdline | \
pascal@276 159 sed 's/.*rootfssize=\([0-9]*[kmg%]\).*/-o size=\1/')"
pascal@276 160 free=$(busybox free | busybox awk '/Mem:/ { print int(($4*100)/$3) }')
pascal@276 161 umount /proc
pascal@276 162 [ -n "$size" ] || size="-o size=90%"
pascal@276 163 echo "exec /sbin/init" > /dev/shm/init
pascal@276 164 if [ $free -lt 100 ] || ! mount -t tmpfs $size tmpfs /mnt; then
pascal@276 165 echo -e "\\033[70G[ \\033[1;33mSkipped\\033[0;39m]"
pascal@276 166 exit
pascal@276 167 fi
pascal@276 168 for i in $(ls -a /); do
pascal@276 169 case "$i" in
pascal@276 170 .|..) ;;
pascal@276 171 mnt) mkdir /mnt/mnt;;
pascal@276 172 *) if ! cp -a /$i /mnt 2> /dev/null; then
pascal@276 173 failed
pascal@276 174 umount /mnt
pascal@276 175 exit
pascal@276 176 fi;;
pascal@276 177 esac
pascal@276 178 done
pascal@276 179 launch_init
pascal@276 180 fi