Automatically mount gentoo partition for working on the handbook

mnt-gentoo.sh

# use this script to initialize work on gentoo install
# this is the base for fully installing automatically
# we still have lot's of work to do ...

# mount everything needed for a working chroot
function mount_all(){
	mount $1 /mnt/gentoo
	mount -t proc proc /mnt/gentoo/proc
	mount --rbind /sys /mnt/gentoo/sys
	mount --make-rslave /mnt/gentoo/sys
	mount --rbind /dev /mnt/gentoo/dev
	mount --make-rslave /mnt/gentoo/dev
	mount --bind /dev/shm /mnt/gentoo/dev/shm
}

# clean up after exiting chroot
function unmount_all(){
	umount -l /mnt/gentoo/proc
	umount -l /mnt/gentoo/sys
	umount -l /mnt/gentoo/dev/shm
	echo $1
	if [[ $1 =~ "LABEL" ]]; then
		# extact everything after =
		VOL=`blkid -L ${1#*=}`
		umount -l $VOL
	else
		umount -l $1
	fi

}

# run the script with LABEL=GENTOO or /dev/sda6 as the first parameter
if [ -z $1 ]; then
	echo "please run again with `basename $0` partition-to-mount"
	exit 1;
fi


if [ ! -d /mnt/gentoo ]; then
	mkdir /mnt/gentoo
fi

chroot /mnt/gentoo/ /bin/bash --rcfile /.bashrc && unmount_all $1