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Chroot/Script
< Chroot
Running ZNC in a chrooted environment is unsupported. Either you know what you are doing, or you don't do it! |
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This script will download the latest ZNC snapshot and install it so that it can be used for running a chrooted ZNC. Read the comments in the beginning of the script to learn more.
#!/bin/bash # The source .tar.gz that is installed for chrooting SOURCE="http://znc.in/nightly/znc-svn-latest.tar.gz" # The chroot used CHROOT="/var/chroot/znc" # The user for running ZNC USER="znc" # Arguments to configure (like --disable-shit etc) CONFIGURE_ARGS="" # Arguments to make MAKE_ARGS="-j3" # Don't change stuff after here if [[ $UID == 0 ]] then echo "You don't need to (and shouldn't) run this file as root!" exit fi DL="dl-znc.tar.gz" TMPDIR=$(mktemp -d) # Automatically clean up trap 'rm -rf $TMPDIR' EXIT INT HUP QUIT TERM cd $TMPDIR log() { echo tput smso echo $@ tput rmso } log Downloading... wget -O $TMPDIR/$DL $SOURCE || exit log Extracting... tar -xzf $DL || exit # We assume this extracts to znc* cd znc* || exit log Configuring... ./configure $CONFIGURE_ARGS --prefix=/usr || exit log Compiling... make $MAKE_ARGS || exit log Installing to ${CHROOT}... make install DESTDIR=${CHROOT} || exit mkdir -p $CHROOT/etc mkdir -p $CHROOT/lib mkdir -p $CHROOT/usr/lib mkdir -p $CHROOT/dev mkdir -p $CHROOT/home mkdir -p $CHROOT/home/$USER log "Copying needed libs... (All are saved in ${CHROOT}/usr/lib)" cd $CHROOT ldd $CHROOT/usr/bin/znc | sed -e 's/[ \t]*//g' -e 's/^.*=>//' -e 's/(.*)$//' | while read file do if [[ $file == '' ]] then continue fi if [[ -f $CHROOT/$file ]] then rm $CHROOT/$file fi echo "Copying ${file}..." dir=$(echo $file | sed 's:/[^/]*$::') f=$(echo $file | sed 's:^.*/::') mkdir -p ${CHROOT}/$dir cp -p $file $CHROOT/lib/$f done log "Symlinking /usr/lib64 to /usr/lib... (just in case ;)" ln -s lib $CHROOT/usr/lib64 log Trying to copy files needed for DNS... cp -p /etc/hosts $CHROOT/etc/ cp -p /etc/resolv.conf $CHROOT/etc/ cp -p /lib/libnss_dns.so.2 $CHROOT/lib \ || log Copying libnss_dns.so.2 failed, DNS may be broken! cp -p /lib/libresolv.so.2 $CHROOT/lib \ || log Copying libresolv.so.2 failed, DNS may be broken! cat <<OUT Done You should now su to root. There are some files in the chroot which need to be created by root: (This assumes you are using linux, good luck for other OS) mknod -m 644 ${CHROOT}/dev/random c 1 8 mknod -m 644 ${CHROOT}/dev/urandom c 1 9 mknod -m 666 ${CHROOT}/dev/null c 1 3 You need a user and a group which will be used to run ZNC: useradd --user-group --home-dir=/home/$USER $USER chown -R $USER:$USER ${CHROOT} After this, you should be able to start ZNC. To start up ZNC for creating a configuration, run this: su $USER -- -c '${CHROOT}/usr/bin/znc --makeconf --datadir ${CHROOT}/home/$USER/.znc' To start and stop use these commands: start-stop-daemon --chroot ${CHROOT} --chuid $USER:$USER --start --exec /usr/bin/znc start-stop-daemon --chroot ${CHROOT} --chuid $USER:$USER --stop --exec /usr/bin/znc OUT