wok-6.x annotate busybox/stuff/init @ rev 7845
busybox-static: add chroot
| author | Pascal Bellard <pascal.bellard@slitaz.org> |
|---|---|
| date | Tue Dec 28 16:44:48 2010 +0100 (2010-12-28) |
| parents | 7b3b7e2a569d |
| children | aae44f936ae8 |
| rev | line source |
|---|---|
| pascal@1703 | 1 #!/bin/sh |
| pascal@1703 | 2 |
| pascal@4545 | 3 launch_init() |
| pascal@4545 | 4 { |
| pascal@7844 | 5 umount /proc |
| pascal@4545 | 6 echo -e "\\033[70G[ \\033[1;33mOK\\033[0;39m ]" |
| pascal@7817 | 7 exec /sbin/switch_root mnt$subroot /sbin/init |
| pascal@4545 | 8 } |
| pascal@4545 | 9 |
| pascal@5978 | 10 failed() |
| pascal@5978 | 11 { |
| pascal@7844 | 12 umount /proc |
| pascal@5978 | 13 echo -e "\\033[70G[ \\033[1;31mFailed\\033[0;39m ]" |
| pascal@5978 | 14 } |
| pascal@5978 | 15 |
| pascal@4545 | 16 try_init() |
| pascal@4545 | 17 { |
| pascal@7844 | 18 if [ ! -d /mnt$subroot/etc ] && grep -q cryptoroot= /proc/cmdline; then |
| pascal@4545 | 19 modprobe dm-mod |
| pascal@4545 | 20 modprobe dm-crypt |
| pascal@4545 | 21 modprobe aes-i586 |
| pascal@4545 | 22 root="$(sed 's/.*cryptoroot=\([^ ]*\).*/\1/' < /proc/cmdline)" |
| pascal@4545 | 23 dev=${root#/dev/} |
| pascal@4545 | 24 dmlabel=crypto-$dev |
| pascal@4545 | 25 if cryptsetup isLuks $root 2> /dev/null; then |
| pascal@4545 | 26 cryptsetup luksOpen $root $dmlabel |
| pascal@4545 | 27 else |
| pascal@4545 | 28 read -s -t 60 -p "Pass phrase : " passphrase |
| pascal@4545 | 29 key=$(echo $passphrase | hashalot -x -n 32 sha512) |
| pascal@4545 | 30 blocks=$(cat $(find /sys/block | grep /$dev/size)) |
| pascal@4545 | 31 echo 0 $blocks crypt aes-plain $key 0 $root 0 | \ |
| pascal@4545 | 32 dmsetup create $dmlabel |
| pascal@4545 | 33 fi |
| pascal@4545 | 34 mount /dev/mapper/$dmlabel /mnt |
| pascal@4545 | 35 fi |
| pascal@7844 | 36 if [ -d /mnt$subroot/etc ]; then |
| pascal@4545 | 37 umount /sys |
| pascal@4545 | 38 [ -n "$1" ] && for i in $@ ; do |
| pascal@7844 | 39 cp -a $i /mnt$subroot$(dirname $i) |
| pascal@4545 | 40 done |
| pascal@7844 | 41 mount /mnt -o remount,ro |
| pascal@4545 | 42 launch_init |
| pascal@4545 | 43 fi |
| pascal@5978 | 44 failed |
| pascal@4545 | 45 } |
| pascal@4545 | 46 |
| pascal@4469 | 47 mount_mapper() |
| pascal@4469 | 48 { |
| pascal@4469 | 49 mount $root /mnt |
| pascal@4545 | 50 try_init /dev/mapper $@ |
| pascal@4469 | 51 } |
| pascal@4469 | 52 |
| pascal@5978 | 53 lvmsetup() |
| pascal@5978 | 54 { |
| pascal@5978 | 55 if grep -q lvmroot= /proc/cmdline; then |
| pascal@5978 | 56 modprobe dm-mod |
| pascal@5978 | 57 vgscan --ignorelockingfailure |
| pascal@5978 | 58 vgchange -ay --ignorelockingfailure |
| pascal@5978 | 59 root="/dev/mapper/$(sed 's/.*lvmroot=\([^ ]*\).*/\1/' < /proc/cmdline)" |
| pascal@5978 | 60 return 0 |
| pascal@5978 | 61 fi |
| pascal@5978 | 62 return 1 |
| pascal@5978 | 63 } |
| pascal@5978 | 64 |
| pascal@5978 | 65 load_raid() |
| pascal@5978 | 66 { |
| pascal@5978 | 67 while read line; do |
| pascal@5978 | 68 case "$line" in |
| pascal@5983 | 69 *raid10*) modprobe raid10 ;; |
| pascal@5983 | 70 *raid0*) modprobe raid0 ;; |
| pascal@5983 | 71 *raid1*) modprobe raid1 ;; |
| pascal@5978 | 72 *raid[456]*) modprobe raid456 ;; |
| pascal@5978 | 73 esac |
| pascal@5978 | 74 done |
| pascal@5978 | 75 } |
| pascal@5978 | 76 |
| pascal@4469 | 77 mount -t proc proc /proc |
| pascal@4469 | 78 mount -t sysfs sysfs /sys |
| pascal@4469 | 79 if grep -q dmraid= /proc/cmdline; then |
| pascal@4469 | 80 root="$(sed 's/.*dmraid=\([^ ]*\).*/\1/' < /proc/cmdline)" |
| pascal@4469 | 81 echo -n "Switching / to dmraid $root..." |
| pascal@5978 | 82 dmraid -s | grep ^type | awk '{ print $3 }' | load_raid |
| pascal@4469 | 83 case "$root" in |
| pascal@4469 | 84 /dev/*);; |
| pascal@5978 | 85 *) root=/dev/mapper/$(dmraid -s|grep ^name|awk '{print $3}')p${root#p};; |
| pascal@4469 | 86 esac |
| pascal@4469 | 87 dmraid -ay |
| pascal@5978 | 88 lvmsetup |
| pascal@4469 | 89 mount_mapper |
| pascal@4545 | 90 fi |
| pascal@4545 | 91 if grep -q softraid= /proc/cmdline; then |
| pascal@4469 | 92 root="$(sed 's/.*softraid=\([^ ]*\).*/\1/' < /proc/cmdline)" |
| pascal@4469 | 93 echo -n "Switching / to softraid $root..." |
| pascal@4469 | 94 mdadm --examine --scan --config=partitions > /etc/mdadm.conf |
| pascal@6674 | 95 grep -qs " $root " /etc/mdadm.conf || |
| pascal@6674 | 96 root=$(awk '/dev.md/ { print $2; exit }' < /etc/mdadm.conf) |
| pascal@5978 | 97 grep level=raid /etc/mdadm.conf | load_raid |
| pascal@4469 | 98 mdadm --assemble --scan |
| pascal@5978 | 99 lvmsetup |
| pascal@4469 | 100 mount_mapper /etc/mdadm.conf |
| pascal@4469 | 101 fi |
| pascal@5978 | 102 if lvmsetup; then |
| pascal@5978 | 103 echo -n "Switching / to lvm $root..." |
| pascal@5978 | 104 mount_mapper |
| pascal@5978 | 105 fi |
| pascal@7844 | 106 if grep -q mount= /proc/cmdline; then |
| pascal@7844 | 107 root="$(sed 's/.*mount=\([^ ]*\).*/\1/' < /proc/cmdline)" |
| pascal@7844 | 108 dev=$(blkid | grep $root | sed 's/:.*//;q') |
| pascal@7844 | 109 echo -n "Mounting $dev ($root) ..." |
| pascal@4545 | 110 if ! mount $dev /mnt; then |
| pascal@4545 | 111 if echo $dev | grep -q "/dev/sd"; then |
| pascal@4545 | 112 delay=`cat /sys/module/usb_storage/parameters/delay_use` |
| pascal@4545 | 113 delay=$((1+$delay)) |
| pascal@4545 | 114 echo -n "sleep for $delay seconds..." |
| pascal@4545 | 115 sleep $delay |
| pascal@4545 | 116 fi |
| pascal@7844 | 117 mount $dev /mnt |
| pascal@4545 | 118 fi |
| pascal@7844 | 119 fi |
| pascal@7844 | 120 if grep -q loopfs= /proc/cmdline; then |
| pascal@7844 | 121 loopfs="$(sed 's/.*loopfs=\([^ ]*\).*/\1/' < /proc/cmdline)" |
| pascal@7844 | 122 echo -n "Switching / to loop $loopfs..." |
| pascal@7844 | 123 losetup /dev/loop0 /mnt/$loopfs |
| pascal@7844 | 124 mount /dev/loop0 /mnt 2> /dev/null |
| pascal@4545 | 125 fi |
| pascal@4545 | 126 grep -q cryptoroot= /proc/cmdline && try_init |
| pascal@7845 | 127 umount /sys |
| pascal@7844 | 128 grep -q subroot= /proc/cmdline && |
| pascal@7845 | 129 subroot="/$(sed 's/.*subroot=\([^ ]*\).*/\1/' < /proc/cmdline)" && |
| pascal@7845 | 130 exec chroot /mnt$subroot /sbin/init |
| pascal@2397 | 131 echo -n "Switching / to tmpfs..." |
| pascal@1704 | 132 size="$(grep rootfssize= < /proc/cmdline | \ |
| pascal@1704 | 133 sed 's/.*rootfssize=\([0-9]*[kmg%]\).*/-o size=\1/')" |
| pascal@1772 | 134 free=$(busybox free | busybox awk '/Mem:/ { print int(($4*100)/$3) }') |
| pascal@1775 | 135 [ -n "$size" ] || size="-o size=90%" |
| pascal@1772 | 136 if [ $free -lt 100 ] || ! mount -t tmpfs $size tmpfs /mnt; then |
| pascal@1772 | 137 echo -e "\\033[70G[ \\033[1;33mSkipped\\033[0;39m]" |
| pascal@7844 | 138 umount /proc |
| pascal@1772 | 139 exec /sbin/init |
| pascal@1772 | 140 fi |
| pascal@1704 | 141 for i in $(ls -a /); do |
| pascal@1704 | 142 case "$i" in |
| pascal@1705 | 143 .|..) ;; |
| pascal@1704 | 144 mnt) mkdir /mnt/mnt;; |
| pascal@1704 | 145 *) if ! cp -a /$i /mnt 2> /dev/null; then |
| pascal@5978 | 146 failed |
| pascal@1704 | 147 umount /mnt |
| pascal@1704 | 148 exec /sbin/init |
| pascal@1704 | 149 fi;; |
| pascal@1704 | 150 esac |
| pascal@1704 | 151 done |
| pascal@4545 | 152 launch_init |