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chroot.sh
#!/bin/sh OS=`uname -s` HW=`uname -i` CHROOT=$1 EXECUTABLE=$2 if [ "x$CHROOT" = "x" ]; then cat <<EOF Usage: chrootEnv.sh <chroot path> [path_to_binary] EOF exit 1 fi CUR_USER=`id` CUR_USER=`expr "$CUR_USER" : 'uid=.*(\(.*\)) gid=.*'` if [ $CUR_USER != "root" ]; then echo "[ERROR] You must be root user to setup chroot environment!" fi if [ `expr "$CHROOT" : '\/'` -eq 0 ]; then echo "[ERROR] Chroot path must be absolute path!" exit 1 fi if [ $CHROOT = "/" ]; then echo "It is not necessory to setup the environment when chroot to '/'." exit 0 fi if [ -f $CHROOT ]; then echo "[ERROR] chroot directory does not exist!" exit 1 fi copy_library() { ldd $EXECUTABLE > /tmp/dynlibs while read dynlib do if [ "x$OS" != "xSunOS" ]; then libname=`expr "$dynlib" : '\(.*\) => .* .*'` libpath=`expr "$dynlib" : '.* => \(.*\) .*'` else libname=`expr "$dynlib" : '[ ]*\(.*\) =>.*'` libpath=`expr "$dynlib" : '.* =>[ ]*\(.*\)'` fi if [ "x$libpath" != "x" ]; then if [ "$libpath" = "/usr/lib/$libname" ]; then #if [ ! -f "$CHROOT/usr/lib/$libname" ] && [ ! -f "$CHROOT/$libname" ]; then cp $libpath $CHROOT/usr/lib #fi elif [ "$libpath" = "/usr/lib64/$libname" ]; then #if [ ! -f "$CHROOT/usr/lib64/$libname" ] && [ ! -f "$CHROOT/$libname" ]; then cp $libpath $CHROOT/usr/lib64 #fi elif [ "$libpath" = "/lib64/$libname" ]; then #if [ ! -f "$CHROOT/lib64/$libname" ] && [ ! -f "$CHROOT/$libname" ]; then cp $libpath $CHROOT/lib64 #fi else #if [ ! -f "$CHROOT/lib/$libname" ] && [ ! -f "$CHROOT/$libname" ]; then cp $libpath $CHROOT/lib #fi fi fi done < /tmp/dynlibs rm /tmp/dynlibs } copy_perl() { cp /usr/bin/perl $CHROOT/usr/bin EXECUTABLE=/usr/bin/perl copy_library if [ "x$OS" = "xFreeBSD" ]; then mkdir $CHROOT/usr/libdata cp -R /usr/libdata/perl $CHROOT/usr/libdata elif [ "x$OS" = "xSunOS" ]; then cp -R /usr/perl5 $CHROOT/usr elif [ "x$HW" = "xx86_64" ]; then cp -R /usr/lib64/perl5 $CHROOT/usr/lib64 else cp -R /usr/lib/perl5 $CHROOT/usr/lib fi } update_existing() { cd $CHROOT for f in `find lib lib64 usr/lib usr/lib64 bin usr/bin -type f`; do rsync -av -L /$f ./$f; done rsync -av /etc/pki ./etc/ #NSS required file, otherwise curl breaks FILES="/lib64/libfreeblpriv3.chk /lib64/libfreeblpriv3.so /lib64/libfreebl3.so /lib64/libfreebl3.chk /usr/lib64/libnsssysinit.so /usr/lib64/libnsspem.so /usr/lib64/libnssdbm3.so /usr/lib64/libnssdbm3.chk /usr/lib64/libsoftokn3.so /usr/lib64/libsoftokn3.chk" for f in $FILES ; do rsync -av -L /$f ./$f; done ln -sf ../../lib64/libfreeblpriv3.so $CHROOT/usr/lib64/libfreeblpriv3.so } if [ "x$EXECUTABLE" = 'x' ]; then for req_dir in 'bin' 'lib' 'usr' 'usr/bin' 'usr/lib' 'dev' 'tmp' 'etc' do if [ ! -d "$CHROOT/$req_dir" ]; then mkdir $CHROOT/$req_dir chmod 755 $CHROOT/$req_dir fi done chmod 1777 $CHROOT/tmp if [ "x$HW" = "xx86_64" ]; then for req_dir in 'lib64' 'usr/lib64' do if [ ! -d "$CHROOT/$req_dir" ]; then mkdir $CHROOT/$req_dir chmod 755 $CHROOT/$req_dir fi done fi if [ "x$OS" = "xFreeBSD" ]; then mknod $CHROOT/dev/null c 2 2 mknod $CHROOT/dev/random c 2 3 mknod $CHROOT/dev/urandom c 2 4 mknod $CHROOT/dev/zero c 2 12 mkdir $CHROOT/usr/libexec cp /usr/libexec/ld* $CHROOT/usr/libexec mkdir $CHROOT/usr/share cp -R /usr/share/locale $CHROOT/usr/share elif [ "x$OS" = "xSunOS" ]; then mknod $CHROOT/dev/null c 13 2 mknod $CHROOT/dev/random c 82 0 mknod $CHROOT/dev/urandom c 82 1 #from solaris 10 # mknod $CHROOT/dev/random c 149 0 # mknod $CHROOT/dev/urandom c 149 1 # mknod $CHROOT/dev/poll c 138 0 mknod $CHROOT/dev/zero c 13 12 cp /usr/lib/ld.so.1 /usr/lib/libdl.so.1 /usr/lib/libc.so.1 $CHROOT/usr/lib cp -R /usr/lib/locale $CHROOT/usr/lib else mknod $CHROOT/dev/null c 1 3 mknod $CHROOT/dev/random c 1 8 mknod $CHROOT/dev/urandom c 1 9 mknod $CHROOT/dev/zero c 1 5 if [ "x$OS" = "xLinux" ]; then cp /lib/ld-linux.so.* $CHROOT/lib fi cp /lib/libnss_dns.so.* $CHROOT/lib cp /lib/libnss_files.so.* $CHROOT/lib cp /lib/libnss_nisplus.so.* $CHROOT/lib cp /lib/libtermcap.so.* $CHROOT/lib cp -R /usr/lib/locale $CHROOT/usr/lib cp /etc/netconfig $CHROOT/etc if [ "x$HW" = "xx86_64" ]; then cp /lib64/libnss_dns.so.* $CHROOT/lib64 cp /lib64/libnss_files.so.* $CHROOT/lib64 cp /lib64/libnss_nisplus.so.* $CHROOT/lib64 cp /lib64/libtermcap.so.* $CHROOT/lib64 cp /lib64/ld-* $CHROOT/lib64 fi fi chmod 666 $CHROOT/dev/* cp /etc/localtime $CHROOT/etc/ cp /etc/resolv.conf $CHROOT/etc/ cp /etc/hosts $CHROOT/etc/ #chown root $CHROOT #chmod 700 $CHROOT touch $CHROOT/etc/passwd $CHROOT/etc/group $CHROOT/etc/shadow chmod 400 $CHROOT/etc/shadow for req_bin in 'dirname' 'ldd' 'cat' 'echo' 'date' 'sh' do if [ ! -f "$CHROOT/bin/$req_bin" ]; then if [ -f "/bin/$req_bin" ]; then cp /bin/$req_bin $CHROOT/bin chmod 755 $CHROOT/bin/$req_bin EXECUTABLE=/bin/$req_bin elif [ -f "/usr/bin/$req_bin" ]; then cp /usr/bin/$req_bin $CHROOT/usr/bin chmod 755 $CHROOT/usr/bin/$req_bin EXECUTABLE=/usr/bin/$req_bin elif [ -f "/sbin/$req_bin" ]; then cp /sbin/$req_bin $CHROOT/bin chmod 755 $CHROOT/bin/$req_bin EXECUTABLE=/sbin/$req_bin elif [ -f "/usr/sbin/$req_bin" ]; then cp /usr/sbin/$req_bin $CHROOT/usr/bin chmod 755 $CHROOT/usr/bin/$req_bin EXECUTABLE=/usr/sbin/$req_bin fi copy_library fi done elif [ "x$EXECUTABLE" = 'xperl' ]; then copy_perl elif [ "x$EXECUTABLE" = 'xupdate_chroot' ]; then update_existing else copy_library fi
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