kvminst

#!/bin/sh

cdir=`dirname $(readlink -f $0)`
if [ ! -f "/$cdir/kvm.txz" ]; then
	echo "File kvm.txz is missing. Installation aborted." >&2
	exit 1
fi

if [ $(id -u) -ne 0 ]; then
	echo "You need to be root to run this." >&2
	exit 1
fi

lpool=$(zpool list -o name | tail -n +2)

if [ -z "$lpool" ]; then
	echo "No pool detected. Installation aborted." >&2
	exit 1
fi

zl=$(zfs list | grep /kvm)
if [ -n "$zl" ]; then
	echo "kvm seems to be already installed on this system." >&2
	echo "Please uninstall it before." >&2
	exit 1
fi

echo -n "Detected pool(s) are/is: "
echo $lpool
while true; do
	read -p "Choose the pool where to install kvm: " kpool
	if [ -n "$kpool" ]; then
		case $lpool in
			*"$kpool"*) break;;
		esac
	fi
	echo "Please choose a detected pool..."
done

zfs create $kpool/kvm
zfs create $kpool/kvm/vm

tar -xf kvm.txz -C /$kpool/kvm

echo "*** kvm has been installed in /$kpool/kvm. ***"