#!/bin/sh SCRIPTNAME=termux-chroot show_usage () { echo "Usage: $SCRIPTNAME [command]" echo "termux-chroot: Setup a chroot to mimic a normal Linux file system" echo "" echo "Execute a command in a chroot with traditional file system hierarchy" echo "(having e.g. the folders /bin, /etc and /usr) within Termux." echo "If run without argument, the default shell will be executed" exit 0 } while getopts :h option do case "$option" in h) show_usage;; ?) echo "$SCRIPTNAME: illegal option -$OPTARG"; exit 1; esac done shift $(($OPTIND-1)) # For the /system/bin/linker(64) to be found: ARGS="-b /system:/system" # On some devices /vendor is required for termux packages to work correctly # See https://github.com/termux/proot/issues/2#issuecomment-303995382 ARGS="$ARGS -b /vendor:/vendor" # Bind /data to include system folders such as /data/misc. Also $PREFIX # and $HOME so that Termux programs with hard-coded paths continue to work: ARGS="$ARGS -b /data:/data" # Used by getprop (see https://github.com/termux/termux-packages/issues/1076): ARGS="$ARGS -b /property_contexts:/property_contexts" # Expose external and internal storage: if [ -d /storage ]; then ARGS="$ARGS -b /storage:/storage" fi # Mimic traditional Linux file system hierarchy - /usr: ARGS="$ARGS -b $PREFIX:/usr" # Mimic traditional Linux file system hierarchy - other Termux dirs: for f in bin etc lib share tmp var; do ARGS="$ARGS -b $PREFIX/$f:/$f" done # Mimic traditional Linux file system hierarchy- system dirs: for f in dev proc; do ARGS="$ARGS -b /$f:/$f" done # Set /home as current directory: ARGS="$ARGS --cwd=/home" # Root of the file system: ARGS="$ARGS -r $PREFIX/.." export HOME=/home # Shell to execute: PROGRAM=/bin/bash if [ -x $HOME/.termux/shell ]; then PROGRAM=`readlink -f $HOME/.termux/shell` fi # Execute shell if no command has been supplied if [ -z "$1" ];then ARGS="$ARGS $PROGRAM -l" exec $PREFIX/bin/proot $ARGS else # When a command is executed directly instead of opening a shell run # the command in the current working directory instead of in /home ARGS="$ARGS --cwd=." # Start supplied command with "sh -c" so things like these work: # termux-chroot "make;make install" # termux-chroot "SOME_CONFIG=value ./configure" exec $PREFIX/bin/proot $ARGS sh -c "$*" fi