Installing Linux Mint (non-'live') to a USB stick
I recently installed Linux Mint on an Acer Aspire One for my dad, as he needed a Linux environment to fully utilise his data loggers for work. I quite liked Mint, so I looked at creating a permanent non live USB install of it for myself - non live as in I can change system settings and they wont be lost on reboot, store files etc. I am using an 8GB SanDisk Cruzer Titanium, and I have made two paritions - on 4GB XFS parition for Linux, and one 4GB FAT32 partition for general use across all OS's.
I made the partition the root mount point, and didnt bother with a swap partition, as the main machine I would use it on has 4GB RAM, and the vast majority of others have 2GB+. I installed it via the netbook from a Live USB stick (which was how I installed Mint onto the netbook in the first place).
When I select the USB stick as the boot device, GRUB loads just fine, however upon selecting Mint or Min recovery mode, I get:
"ERROR 21 error 21 selected disk does not exist".
I am pretty new to Linux, so I honestly do not have a clue where to start with this. The error is persistant no matter what machine I attempt to boot from.
Is this type of USB install just not possible, or have I done something wrong during the install process, or am I missing something completely?
An help is greatly appreciated!