Script to enter chroot

start.sh (text/plain), 1.47 KB, created by David Carlos Manuelda on 2011-04-10 14:24:43 UTC

#! /bin/bash
TARFILENAME="../gentoo-`date +"%d-%m-%Y"`.tar"
XZFILENAME="$TARFILENAME.xz"
ROOT="/data/Gentoo/root"
PORTAGE="/usr/portage"
DISTFILES="/usr/portage/distfiles"
CCACHE="/var/tmp/ccache"
LOGDIR="/var/log/portage"
mountall() {
	echo -n "Mounting binded paths... "
	mount -o bind $PORTAGE $ROOT$PORTAGE
	mount -o bind $DISTFILES $ROOT$DISTFILES
	mount -o bind $CCACHE $ROOT$CCACHE
	mount -o bind $LOGDIR $ROOT$LOGDIR
	mount -o bind /dev $ROOT/dev
	mount -t proc none $ROOT/proc
	cp -L /etc/resolv.conf $ROOT/etc/resolv.conf
	echo "OK"
}

umountall() {
	echo -n "Unmounting binded paths... "
	umount $ROOT$CCACHE
	umount $ROOT$LOGDIR
	umount $ROOT/dev
	umount $ROOT/proc
	umount $ROOT$DISTFILES
	echo "OK"
}

clean() {
	echo -n "Cleaning... "
	rm -Rf $ROOT/tmp/* > /dev/null 2>&1
	rm -Rf $ROOT/var/log/portage/* > /dev/null 2>&1
	rm -Rf $ROOT/var/tmp/portage/*
	echo "OK"
}


warning() {
	echo "Remember to run env-update && source /etc/profile"
}

pack() {
	cd $ROOT
	echo "Packaging image $TARFILENAME"
	tar cpSvf $TARFILENAME .
	echo "OK"
}

compress() {
	cd $ROOT
	echo "Compressing image $XZFILENAME "
	lzma -zv9eq $TARFILENAME > $XZFILENAME
	echo "OK"
}

clean() {
	echo -n "Cleaning... "
	cd $ROOT
	rm -f $TARFILENAME;
	echo "OK"
}

mountall
warning
chroot $ROOT /bin/bash
umountall
clean

read -p "Create new image? (y/n): "
if [ $REPLY != "y" ]; then
	echo "Exiting..."
else
	pack
	read -p "Compress image? (y/n): "
	if [ $REPLY == "y" ]; then
		compress
	fi
	clean
fi
umount $ROOT$PORTAGE