Got this old Fujitsu-Siemens Amilo Pro V2010 on which I run now Ubuntu 12.10. Tried to open the back for adding extra RAM. Unfortunately, the back doesn't go off. So I now was curious if I could just use a memory stick and have it be used via USB-plug as an additional external RAM? How would Ubuntu 12.10 then tie that in?
You cna make a USB stick swap, but you would get bad performance. You'll need to format the USB stick. Open Disk Utility by searching for it in the dash.
Enter the entry for the USB stick and delete the partition. Create a new partition there. Set it to be Linux swap. Let it finish. Reboot.