When installing F7T1 x86_64 (shouldn't the version above be changed from fc7test1 to f7test1?) I got a backtrace from Anaconda at the end of the install. This doesn't seem to fit the normal template, so I'll just go freehand here. I installed F7T1 to my sda7 partition and wanted to put grub in the boot sector of that partition. When it came time to install grub, however, I got a nice backtrace. The dump from Anaconda is attached.
Created attachment 147627 [details] Anaconda dump file
Moving to 'devel' as discussed on https://www.redhat.com/archives/fedora-devel-list/2007-March/msg00095.html.
I just installed F7T2 with the same boot loader options and get a nearly identical backtrace from it: https://bugzilla.redhat.com/bugzilla//show_bug.cgi?id=233224
*** Bug 233224 has been marked as a duplicate of this bug. ***
Are you still seeing this with test 4? A quick test here did not reproduce the problem.
I will try it out after I get the ISO downloaded and get a chance to install it. Probably by the weekend.
I just installed F7T4 and can confirm that test 4 fixes this issue. I had no problems with GRUB installation to the first sector of the boot partition.