I used Startup Disk Creator to try and make a bootable USB ubuntu stick to install on my new ultrabook.
I had my 2TB backup USB drive attached, as I had just backed up everything on the flash drive.
I ran the Startup Disk Creator (as detailed here: http://www.ubuntu.com/download/desktop/create-a-usb-stick-on-ubuntu ). I selected the appropriate ISO (which was surprisingly also pre-selected), and I checked the "Device to Use" and confirmed that it was the correct drive (by name). I clicked "Erase" to clean the drive.
A few minutes went by, and I saw activity on my USB drive. I thought perhaps it was formatting instead of erasing. Then I noticed that my backup drive activity was churning...not a good sign.
Worst possible thing was true, the startup disc creator was erasing my 2TB backup drive.
I have been googling to see what to do, and what exactly "erase" does in Startup Disk Creator. I am currently running testdisk and doing a deep scan, as the quick scan did not show a partition with files.
What did I do wrong with the Startup Disk Creator? How could it erase a disc that wasn't selected in the "Devices" dropdown? What exactly did it DO when it erased, and is my data completely hosed or can I expect this long deep scan to bear fruit?