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 |
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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 |