oops, I skipped step 1: "Formatting the drive with a GUID partition table"; when I saw the word 'formatting' I thought it could possibly wipe out the data on the card and surmised that it is probably only meant for brand new disks. Additionally, I applied the same logic (mentioned above) that was recommended for the root directory to my home directory, thus editing it too and causing it to virtually disapper. When I had rebooted (as per the end of step three), my root directory was mounted as 'read-only' so I was unable to change back the fstab file to its original condition. Attempts to mount / elsewhere in a temporary directory failed. I rectifed the situation by netbooting (temporarily enabeling that option in the bios) and changing /etc/fstab back to what it was. On the upside, it made sense to leave /tmp and /var/tmp mounted to tmpfs which exists in ram memory 'on the fly' as it were making it irretreivable with each shutdown. Any idea as to how I might do the same with 'ranger', my file manager of choice ( i.e. mounting it to tmpfs)? It's quite heavy on ssd memory; alot of read/writes as it automatically previews text files when you scroll down through directories.