IMG/cpio/ventoy/ventoy.sh

   1 #!/ventoy/busybox/sh
   2 #************************************************************************************
   3 # Copyright (c) 2020, longpanda <admin@ventoy.net>
   4 #
   5 # This program is free software; you can redistribute it and/or
   6 # modify it under the terms of the GNU General Public License as
   7 # published by the Free Software Foundation; either version 3 of the
   8 # License, or (at your option) any later version.
   9 #
  10 # This program is distributed in the hope that it will be useful, but
  11 # WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13 # General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License
  16 # along with this program; if not, see <http://www.gnu.org/licenses/>.
  17 #
  18 #************************************************************************************
  19
  20 ####################################################################
  21 #                                                                  #
  22 # Step 1 : Parse kernel parameter                                  #
  23 #                                                                  #
  24 ####################################################################
  25 if ! [ -e /proc ]; then
  26     $BUSYBOX_PATH/mkdir /proc
  27     rmproc='Y'
  28 fi
  29 $BUSYBOX_PATH/mount -t proc proc /proc
  30
  31 # vtinit=xxx to replace rdinit=xxx
  32 vtcmdline=$($CAT /proc/cmdline)
  33 for i in $vtcmdline; do
  34     if echo $i | $GREP -q vtinit; then
  35         user_rdinit=${i#vtinit=}
  36         echo "user set user_rdinit=${user_rdinit}" >>$VTLOG
  37     fi
  38 done
  39
  40
  41 ####################################################################
  42 #                                                                  #
  43 # Step 2 : Do OS specific hook                                     #
  44 #                                                                  #
  45 ####################################################################
  46 ventoy_get_os_type() {
  47     echo "kernel version" >> $VTLOG
  48     $CAT /proc/version >> $VTLOG
  49
  50     # rhel5/CentOS5 and all other distributions based on them
  51     if $GREP -q 'el5' /proc/version; then
  52         echo 'rhel5'; return
  53
  54     # rhel6/CentOS6 and all other distributions based on them
  55     elif $GREP -q 'el6' /proc/version; then
  56         echo 'rhel6'; return
  57
  58     # rhel7/CentOS7/rhel8/CentOS8 and all other distributions based on them
  59     elif $GREP -q 'el[78]' /proc/version; then
  60         echo 'rhel7'; return
  61
  62     # Maybe rhel9 rhel1x use the same way? Who knows!
  63     elif $EGREP -q 'el9|el1[0-9]' /proc/version; then
  64         echo 'rhel7'; return
  65
  66     # Fedora : do the same process with rhel7
  67     elif $GREP -q '\.fc[0-9][0-9]\.' /proc/version; then
  68         echo 'rhel7'; return
  69
  70     # Debian :
  71     elif $GREP -q '[Dd]ebian' /proc/version; then
  72         echo 'debian'; return
  73
  74     # Ubuntu : do the same process with debian
  75     elif $GREP -q '[Uu]buntu' /proc/version; then
  76         echo 'debian'; return
  77
  78     # Deepin : do the same process with debian
  79     elif $GREP -q '[Dd]eepin' /proc/version; then
  80         echo 'debian'; return
  81
  82     # SUSE
  83     elif $GREP -q 'SUSE' /proc/version; then
  84         echo 'suse'; return
  85
  86     # ArchLinux
  87     elif $EGREP -q 'archlinux|ARCH' /proc/version; then
  88         echo 'arch'; return
  89
  90     # kiosk
  91     elif $EGREP -q 'kiosk' /proc/version; then
  92         echo 'kiosk'; return
  93
  94     # gentoo
  95     elif $EGREP -q '[Gg]entoo' /proc/version; then
  96         echo 'gentoo'; return
  97
  98     # TinyCore
  99     elif $EGREP -q 'tinycore' /proc/version; then
 100         echo 'tinycore'; return
 101
 102     # manjaro
 103     elif $EGREP -q 'manjaro|MANJARO' /proc/version; then
 104         echo 'manjaro'; return
 105
 106     # mageia
 107     elif $EGREP -q 'mageia' /proc/version; then
 108         echo 'mageia'; return
 109
 110     # pclinux OS
 111     elif $GREP -i -q 'PCLinuxOS' /proc/version; then
 112         echo 'pclos'; return
 113
 114     # KaOS
 115     elif $GREP -i -q 'kaos' /proc/version; then
 116         echo 'kaos'; return
 117
 118     # Alpine
 119     elif $GREP -q 'Alpine' /proc/version; then
 120         echo 'alpine'; return
 121
 122     # NixOS
 123     elif $GREP -i -q 'NixOS' /proc/version; then
 124         echo 'nixos'; return
 125
 126     fi
 127
 128     if [ -e /lib/debian-installer ]; then
 129         echo 'debian'; return
 130     fi
 131
 132     if [ -e /etc/os-release ]; then
 133         if $GREP -q 'XenServer' /etc/os-release; then
 134             echo 'xen'; return
 135         elif $GREP -q 'SUSE ' /etc/os-release; then
 136             echo 'suse'; return
 137
 138         fi
 139     fi
 140
 141     if $BUSYBOX_PATH/dmesg | $GREP -q -m1 "Xen:"; then
 142         echo 'xen'; return
 143     fi
 144
 145
 146     if [ -e /etc/HOSTNAME ] && $GREP -i -q 'slackware' /etc/HOSTNAME; then
 147         echo 'slackware'; return
 148     fi
 149
 150     if [ -e /init ]; then
 151         if $GREP -i -q zeroshell /init; then
 152             echo 'zeroshell'; return
 153         fi
 154     fi
 155
 156     if $EGREP -q 'ALT ' /proc/version; then
 157         echo 'alt'; return
 158     fi
 159
 160     if $EGREP -q 'porteus' /proc/version; then
 161         echo 'debian'; return
 162     fi
 163
 164     if $GREP -q 'Clear Linux ' /proc/version; then
 165         echo 'clear'; return
 166     fi
 167
 168     if $GREP -q 'artix' /proc/version; then
 169         echo 'arch'; return
 170     fi
 171
 172     if $GREP -q 'berry ' /proc/version; then
 173         echo 'berry'; return
 174     fi
 175
 176     if $GREP -q 'Gobo ' /proc/version; then
 177         echo 'gobo'; return
 178     fi
 179
 180     if $GREP -q 'NuTyX' /proc/version; then
 181         echo 'nutyx'; return
 182     fi
 183
 184     if [ -d /gnu ]; then
 185         vtLineNum=$($FIND /gnu/ -name guix | $BUSYBOX_PATH/wc -l)
 186         if [ $vtLineNum -gt 0 ]; then
 187             echo 'guix'; return
 188         fi
 189     fi
 190
 191     if $GREP -q 'android.x86' /proc/version; then
 192         echo 'android'; return
 193     fi
 194
 195     if $GREP -q 'adelielinux' /proc/version; then
 196         echo 'adelie'; return
 197     fi
 198
 199     if $GREP -q 'pmagic' /proc/version; then
 200         echo 'pmagic'; return
 201     fi
 202
 203     if $GREP -q 'CDlinux' /proc/cmdline; then
 204         echo 'cdlinux'; return
 205     fi
 206
 207     echo "default"
 208 }
 209
 210 VTOS=$(ventoy_get_os_type)
 211 echo "OS=###${VTOS}###" >>$VTLOG
 212 if [ -e "$VTOY_PATH/hook/$VTOS/ventoy-hook.sh" ]; then
 213     $BUSYBOX_PATH/sh "$VTOY_PATH/hook/$VTOS/ventoy-hook.sh"
 214 fi
 215
 216
 217 ####################################################################
 218 #                                                                  #
 219 # Step 3 : Check for debug break                                   #
 220 #                                                                  #
 221 ####################################################################
 222 if [ "$VTOY_BREAK_LEVEL" = "03" ] || [ "$VTOY_BREAK_LEVEL" = "13" ]; then
 223     $SLEEP 5
 224     echo -e "\n\n\033[32m ################################################# \033[0m"
 225     echo -e "\033[32m ################ VENTOY DEBUG ################### \033[0m"
 226     echo -e "\033[32m ################################################# \033[0m \n"
 227     if [ "$VTOY_BREAK_LEVEL" = "13" ]; then
 228         $CAT $VTOY_PATH/log
 229     fi
 230     exec $BUSYBOX_PATH/sh
 231 fi
 232
 233 ####################################################################
 234 #                                                                  #
 235 # Step 4 : Hand over to real init                                  #
 236 #                                                                  #
 237 ####################################################################
 238 $BUSYBOX_PATH/umount /proc
 239 if [ "$rmproc" = "Y" ]; then
 240     $BUSYBOX_PATH/rm -rf /proc
 241 fi
 242
 243 if [ -f $VTOY_PATH/ventoy_persistent_map ]; then
 244     export PERSISTENT='YES'
 245     export PERSISTENCE='true'
 246 fi
 247
 248 cd /
 249
 250 unset VTLOG FIND GREP EGREP CAT AWK SED SLEEP HEAD
 251
 252 for vtinit in $user_rdinit /init /sbin/init /linuxrc; do
 253     if [ -d /ventoy_rdroot ]; then
 254         if [ -e "/ventoy_rdroot$vtinit" ]; then
 255             # switch_root will check /init file, this is a cheat code
 256             echo 'switch_root' > /init
 257             exec $BUSYBOX_PATH/switch_root /ventoy_rdroot "$vtinit"
 258         fi
 259     else
 260         if [ -e "$vtinit" ];then
 261             if [ -f "$VTOY_PATH/hook/$VTOS/ventoy-before-init.sh" ]; then
 262                 $BUSYBOX_PATH/sh "$VTOY_PATH/hook/$VTOS/ventoy-before-init.sh"
 263             fi
 264             exec "$vtinit"
 265         fi
 266     fi
 267 done
 268
 269 # Should never reach here
 270 echo -e "\n\n\033[31m ############ INIT NOT FOUND ############### \033[0m \n"
 271 exec $BUSYBOX_PATH/sh