Added mount option to re-mount existing setup

gentoo-install.sh

@@ -35,6 +35,7 @@ function show_help() {
     echo "-c, --compression Enable BtrFS compression."
 	echo "-s, --swap        Enable Swap/Hibernation support."
 	echo "-d, --debug       Enable DEBUG mode for testing."
+	echo "-m, --mount       Mount an existing install."
     echo ""
     echo "--stage <stage>   Installation using stagefile <stage>, for stage3 or stage4"
     echo "--clean           Cleanup disk for clean slate"
@@ -334,6 +335,20 @@ function install_prep() {
     echo "as appropriate, to continue."
 }
 
+function install_mount() {
+	show_options
+
+	read -rsn1 -p"Mounting: To proceed, press enter to continue." proceed
+	echo
+	if [[ "$proceed" != "" ]]; then
+		echo "Aborting."
+		exit 1
+	fi
+
+    echo "Mounting Partitions on ${RootDisk}..."
+	prepare_target
+}
+
 function install_stage() {
 	show_options
 
@@ -409,6 +424,10 @@ while [[ $# -gt 0 ]]; do
 			DEBUG=true
 			shift
 			;;
+		-m|--mount)
+			INSTALL_MODE=mount
+			shift
+			;;
 		--stage)
 			INSTALL_MODE=stage
             INSTALL_STAGE=$1
@@ -457,6 +476,7 @@ else
 
 	case "$INSTALL_MODE" in
 		normal) install_prep;;
+		mount)	install_mount;;
 		stage)	install_stage;;
 		clean)  install_cleanup;;
 		*)