Trying to install Ubuntu on an external usb 3 500 Gb hard-drive. I am using Acer netbook. My specs are: amd C-60 1GHz with 4 Gb ram. I have a 64 bits windows 7 no2 installed.
I downloaded "ubuntu-12.04.1-alternate-amd64" ISO file and used the universal usb installer to install Ubuntu.
When I reboot on the external hard drive, I have the language selection, then the menu...I choose to install...and I get a black flickering screen. and nothing more.