Comment 13 for bug 897786

Regarding using mini.iso as a live media, no that won't work as mini.iso is a minimal debian-install images similar to what you'd load from a tftp server for a netinstall.

I don't think it's possible to test Ubuntu 12.04 on a non-PAE machine using a live media at this point, at least I couldn't find any image where the non-PAE kernel is listed in the manifest. Colin will probably correct me here if I'm wrong.

It'd probably be interesting for you to talk to the Xubuntu and Lubuntu folks who may target more the hardware that's old enough to miss PAE support and see if they'd consider changing their default kernel to the non-PAE variant.

I guess it wouldn't be impossible to ship both kernels on the DVD image (that's meant to be put on a USB stick) but would likely require some work in ubiquity to remove the right kernel and in gfxboot to show the option to the user, I doubt this will happen before the FeatureFreeze which is on the 16th of February.