grub does not install during install (manual pratitioning) of Quantal Alpha 3

[Carla Sella]

I was carrying out this test: http://iso.qa.ubuntu.com/qatracker/milestones/226/builds/19358/testcases/1302/results/ on my PC this is my hardware: http://wiki.ubuntu-it.org/CarlaSella/lshw and this is the iso image I was testing: http://cdimage.ubuntu.com/daily-live/20120724.2/quantal-desktop-amd64.iso.
During install my hard drive was detected as /dev/sde instead of /dev/sda and this was already reported in bug #1022726, I do not know if the two bugs are related.
At the end of the installation process I got an error message saying "Unable to install grub on /dev/sde see attached image1 and image2.
I was asked what to do, so first I tried to input /dev/sda instead of /dev/sde, but got the same error see image3 then I tried to input /dev/sde again but got the same error and finaly I tried to input /dev/sde1 (image4), but I could not get grub installed.
So I chose to continue without bootloader install and rebooted my PC.
On reboot I found the prevoius grub bootloader and could start the other version of linux on the /dev/sda1 partition of my PC, but on /dev/sda5, the partition where I chose to install Quantal Alpha3, I am not able to boot unless I modify grub by hand.

[Ubuntu QA Website (ubuntuqa)]

This bug has been reported on the Ubuntu ISO testing tracker.

A list of all reports related to this bug can be found here:
http://iso.qa.ubuntu.com/qatracker/reports/bugs/1028604

[Carla Sella (carla-sella)]

I forgot to tell that I installed from a live non persistent USB key created with "startup disk creator".

[Jean-Baptiste Lallement (jibel)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 987418, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.