Various: LiveCD can be used if /mnt/gentoo is created before mounting

Readme.md

@@ -35,7 +35,7 @@ Run `eselect opengl set nvidia` as root.
 
 You may use this script as-is by performing the following steps:
 
-1. Download the latest Gentoo install cd for your architecture. Only
+1. Download the Gentoo install cd (or any Live distribution) for your architecture. Only
 amd64 is currently defined. Create an issue with the output of
 `uname -a` for it to be added to the script.
 
@@ -46,7 +46,8 @@ amd64 is currently defined. Create an issue with the output of
 
 3. Partition and mount your disks. Note that this example assumes that
 you will be using a single partition and later installing GRUB to the
-MBR.
+MBR. Note that if you aren't using the Gentoo installation CD, you will
+need to `mkdir /mnt/gentoo` before proceeding.
 
         $ fdisk /dev/sdX
         $ mount /dev/sdX1 /mnt/gentoo

gein.sh

@@ -214,9 +214,10 @@ BOOTSTRAP() {
         exit
     fi
 
-    echo "gein: Ensuring /mnt/gentoo exists..."
     if [ ! -e /mnt/gentoo ]; then
-	mkdir -p /mnt/gentoo
+	echo "gein: You didn't create /mnt/gentoo before proceeding!"
+	echo "gein: The mount point may be incorrect. Exiting..."
+	exit
     fi
 
     echo "gein: Ensuring we are in /mnt/gentoo..."