Written by ade234uk the 24 Jul 12 at 17:30.
Related project: Live CD installer.
Status: In development
Rationale
I have on a few occasions left my external drive plugged in before installing Ubuntu.
Someone installing Ubuntu for the first time might accidently select the wrong drive and wipe their precious data as they don't understand how drives are named in Linux.
Dmitrijs Ledkovs, one of the current Ubiquity maintainers, responded to this brainstorm idea as part of the "most popular ideas" review:
Indeed, having less hard-drives attached during installations (ideally only 1) makes the installation process easier and more robust. On the other hand, we still want to continue supporting multiple target devices. During 12.10, improvements were made in detecting external USB drives in the installer. Unfortunately, that also reviled that some USB sticks & drives mis-report themselves as other connection types (e.g. SCSI). This makes Solution #2/#3 very hard. We no longer have migration assistant in the installer, thus there is no benefit in having unnecessary devices plugged in.
I like "Solution #1: Display awarning message". It can be shown in a non-intrusive way, as needed
(when extra drives are plugged in), at the prepare step or maybe at some other screen.
I myself have gone through this situation, because my external drive is the same brand and capacity of the internal hard drive - although the models are different.