wok-6.x annotate syslinux/stuff/iso2exe/init @ rev 23991
syslinux: iso2exe/init loram case
| author | Pascal Bellard <pascal.bellard@slitaz.org> |
|---|---|
| date | Sun Dec 06 10:04:52 2020 +0000 (2020-12-06) |
| parents | afa00d471293 |
| children | 3d19917d3a03 |
| rev | line source |
|---|---|
| pascal@21302 | 1 #!/bin/sh |
| pascal@13691 | 2 |
| pascal@13691 | 3 getarg() |
| pascal@13691 | 4 { |
| pascal@13691 | 5 sed "/$1=/!d;s/.*$1=\\([^ ]*\\).*/\\1/" /proc/cmdline |
| pascal@13691 | 6 } |
| pascal@13691 | 7 |
| pascal@23820 | 8 myget() |
| pascal@17489 | 9 { |
| pascal@23820 | 10 hexdump -v -s $1 -n ${4:-${3:-2}} -e "\"\" 1/${3:-2} \" %u\n\"" $2 |
| pascal@17489 | 11 } |
| pascal@17489 | 12 |
| pascal@16041 | 13 mount_proc() |
| pascal@16041 | 14 { |
| pascal@16041 | 15 mount -t proc /proc /proc |
| pascal@16041 | 16 mount -t sysfs /sys /sys |
| pascal@21801 | 17 udevd --daemon 2>/dev/null && udevadm trigger && sleep 5 |
| pascal@16041 | 18 } |
| pascal@16041 | 19 |
| pascal@16041 | 20 umount_proc() |
| pascal@16041 | 21 { |
| pascal@21801 | 22 killall udevd 2>/dev/null |
| pascal@21801 | 23 umount /sys/fs/fuse/connections 2>/dev/null |
| pascal@16041 | 24 umount /sys |
| pascal@16041 | 25 umount /proc |
| pascal@16041 | 26 } |
| pascal@16041 | 27 |
| pascal@23820 | 28 checkmagic() |
| pascal@17473 | 29 { |
| pascal@23820 | 30 [ -s $1 ] && [ $(getarg magic) = $(myget 18 $1 2) ] |
| pascal@17473 | 31 } |
| pascal@17473 | 32 |
| pascal@23820 | 33 media=/media/cdrom |
| pascal@23820 | 34 mnt=/mnt |
| pascal@13691 | 35 getiso() |
| pascal@13691 | 36 { |
| pascal@23820 | 37 mkdir -p $media |
| pascal@23951 | 38 for dev in /sys/block/*; do |
| pascal@23988 | 39 for dev in $(ls -d $dev/$(basename $dev)*); do |
| pascal@23988 | 40 [ "$dev" ] || continue 2 |
| pascal@23988 | 41 mount /dev/$(basename $dev) $mnt |
| pascal@23988 | 42 if checkmagic $mnt/$ISO; then |
| pascal@23988 | 43 echo "Found $ISO on $(basename $dev)" |
| pascal@23988 | 44 ISO=$mnt/$ISO |
| pascal@23988 | 45 mount -o loop,ro $ISO $media |
| pascal@23988 | 46 return 0 |
| pascal@23988 | 47 fi |
| pascal@23988 | 48 umount $mnt |
| pascal@23988 | 49 done |
| pascal@23986 | 50 done |
| pascal@19510 | 51 return 1 |
| pascal@13691 | 52 } |
| pascal@13691 | 53 |
| pascal@23820 | 54 uncpio=uncpio64 |
| pascal@23820 | 55 uncpio64() |
| pascal@13691 | 56 { |
| pascal@21801 | 57 i=$1 |
| pascal@23951 | 58 grep ' lm ' /proc/cpuinfo && [ -s ${i}64 ] && i=${i}64 |
| pascal@21801 | 59 [ -s "$i" ] || return |
| pascal@21801 | 60 echo -en "\n Extracting $(basename $i) ..." |
| pascal@21801 | 61 case $(get 0 $i) in |
| pascal@21801 | 62 *35615) ( zcat || gunzip );; |
| pascal@21801 | 63 *14333) unxz;; |
| pascal@21801 | 64 *\ 93) unlzma;; |
| pascal@21801 | 65 *) cat;; |
| pascal@21801 | 66 esac < $i | ( cd ${2:-/}; cpio -idmu > /dev/null 2>&1 ) |
| pascal@13691 | 67 } |
| pascal@13691 | 68 |
| pascal@23820 | 69 tty0=tty0 |
| pascal@13697 | 70 bootlog() |
| pascal@13697 | 71 { |
| pascal@23988 | 72 dialog --clear --title " Linux boot messages " --textbox /tmp/dmesg 24 78 |
| pascal@13697 | 73 } |
| pascal@13697 | 74 |
| pascal@16041 | 75 gotposixovl() |
| pascal@16041 | 76 { |
| pascal@20771 | 77 mount.posixovl 2>&1 | grep -qi usage && |
| pascal@16041 | 78 echo -en "\"$1\" \"$2\"" |
| pascal@16041 | 79 } |
| pascal@16041 | 80 |
| pascal@23820 | 81 myis_loram() |
| pascal@23820 | 82 { |
| pascal@23820 | 83 [ -s /lib/modules/squashfs.ko* ] |
| pascal@23820 | 84 } |
| pascal@13697 | 85 |
| pascal@13713 | 86 mount_loram() |
| pascal@13713 | 87 { |
| pascal@23820 | 88 myis_loram || return |
| pascal@21801 | 89 insmod /lib/modules/squashfs.ko* 2>/dev/null |
| pascal@23820 | 90 if [ -d $media/fs ]; then |
| pascal@23820 | 91 ln -s $media/fs /sqfs |
| pascal@13713 | 92 else |
| pascal@13713 | 93 mkdir /sqfs |
| pascal@23831 | 94 losetup -o 124 /dev/loop6 $(ls -r $media/boot/rootfs?*.* | sed q) |
| pascal@21801 | 95 mount -r /dev/loop6 /sqfs |
| pascal@13713 | 96 fi |
| pascal@23951 | 97 cp -a /sqfs/dev/fuse /sqfs/dev/tty[12] /dev |
| pascal@23951 | 98 for i in /sqfs/dev/* ; do [ -b $i ] && cp -a $i /dev ; done |
| pascal@21801 | 99 ln -s /sqfs/lib/* lib 2>/dev/null |
| pascal@21386 | 100 ln -fs /sqfs/usr /sqfs/var / |
| pascal@21801 | 101 mkdir /etc && cp /sqfs/etc/dialogrc /etc 2>/dev/null |
| pascal@13713 | 102 } |
| pascal@13713 | 103 |
| pascal@13713 | 104 umount_loram() |
| pascal@13713 | 105 { |
| pascal@23820 | 106 myis_loram || return |
| pascal@20778 | 107 rm /var /usr |
| pascal@13713 | 108 umount -d /sqfs |
| pascal@21801 | 109 rmdir /sqfs 2>/dev/null || rm -f /sqfs |
| pascal@21801 | 110 rm -rf /etc |
| pascal@13713 | 111 } |
| pascal@13713 | 112 |
| pascal@17569 | 113 dosync() |
| pascal@13691 | 114 { |
| pascal@17569 | 115 sync |
| pascal@13713 | 116 umount_loram |
| pascal@23820 | 117 umount -d $media |
| pascal@16073 | 118 rm -f /dev/cdrom |
| pascal@23820 | 119 umount $mnt |
| pascal@16041 | 120 umount_proc |
| pascal@17569 | 121 } |
| pascal@17569 | 122 |
| pascal@23831 | 123 xhascustomconf=false |
| pascal@17569 | 124 text() |
| pascal@17569 | 125 { |
| pascal@23991 | 126 [ -d /etc/skel ] || $uncpio $(ls -r $media/boot/rootfs?*.* | sed q) |
| pascal@18774 | 127 init= |
| pascal@18774 | 128 cmdline="$(cat /proc/cmdline)" |
| pascal@23831 | 129 if $xhascustomconf 2> /dev/null; then |
| pascal@18774 | 130 getcustomconf /tmp > /dev/null |
| pascal@18774 | 131 [ -s /tmp/cmdline ] && |
| pascal@18774 | 132 cmdline="$cmdline $(cat /tmp/cmdline)" && |
| pascal@18774 | 133 init="$(sed '/rdinit=/!d;s/.*rdinit=\([^ ]*\).*/\1/' < /tmp/cmdline)" |
| pascal@23820 | 134 [ -s /tmp/initrd ] && $uncpio /tmp/initrd |
| pascal@18774 | 135 fi |
| pascal@17569 | 136 dosync |
| pascal@21791 | 137 sed -i 's/ || exit//' /init |
| pascal@18774 | 138 exec ${init:-/init} $cmdline |
| pascal@13691 | 139 } |
| pascal@13691 | 140 |
| pascal@23831 | 141 xdowait=echo |
| pascal@13691 | 142 live() |
| pascal@13691 | 143 { |
| pascal@13691 | 144 n=0 |
| pascal@23831 | 145 $xdotwait "Extract filesystem..." |
| pascal@23988 | 146 for i in $(ls -r $media/boot/rootfs?*.*); do |
| pascal@23820 | 147 [ $((n++)) -eq 0 ] || $uncpio $i |
| pascal@13691 | 148 done |
| pascal@17476 | 149 rm -f /tmp/wait |
| pascal@13691 | 150 text |
| pascal@13691 | 151 } |
| pascal@13691 | 152 |
| pascal@13713 | 153 restart() |
| pascal@13691 | 154 { |
| pascal@17476 | 155 dosync |
| pascal@13713 | 156 reboot -f |
| pascal@13691 | 157 } |
| pascal@13691 | 158 |
| pascal@13713 | 159 stop() |
| pascal@13691 | 160 { |
| pascal@17476 | 161 dosync |
| pascal@13713 | 162 poweroff -f |
| pascal@13691 | 163 } |
| pascal@13691 | 164 |
| pascal@17489 | 165 dokexec() |
| pascal@17476 | 166 { |
| pascal@17659 | 167 kexec -l $file || return |
| pascal@17476 | 168 dosync |
| pascal@17476 | 169 kexec -e |
| pascal@17476 | 170 } |
| pascal@17476 | 171 |
| pascal@13697 | 172 shell() |
| pascal@13697 | 173 { |
| pascal@20771 | 174 trap text 2 |
| pascal@21801 | 175 getty -n -l /bin/ash 38400 tty1 2>/dev/null || sh |
| pascal@13697 | 176 } |
| pascal@13697 | 177 |
| pascal@14247 | 178 BIN=bin/mount.posixovl |
| pascal@14247 | 179 [ -x /usr/s$BIN ] || mv /bin/mount.posixovl.iso2exe \ |
| pascal@21801 | 180 /usr/s$BIN 2>/dev/null || mv /bin/mount.posixovl.iso2exe /$BIN 2>/dev/null |
| pascal@16041 | 181 mount_proc |
| pascal@23951 | 182 mdev -s 2> /dev/null || |
| pascal@21801 | 183 for i in /sys/block/*/dev /sys/block/*/*/dev; do |
| pascal@18804 | 184 [ -s "$i" ] || continue |
| pascal@18804 | 185 n=${i%/dev} |
| pascal@18804 | 186 n=/dev/${n##*/} |
| pascal@18804 | 187 [ -e $n ] && continue |
| pascal@18804 | 188 mknod $n b $(sed 's/:/ /' < $i) |
| pascal@21801 | 189 done 2>/dev/null |
| pascal@17489 | 190 ISO="$(getarg bootfrom | sed 's/.://;s|\\|/|g')" |
| pascal@21801 | 191 getiso 2>/dev/null || text |
| pascal@13713 | 192 mount_loram |
| pascal@23820 | 193 [ -s /usr/bin/taziso ] || live |
| pascal@23987 | 194 . /usr/bin/taziso |