Created attachment 501259 [details]
Anaconda bug report

Good morning everybody,

I'm currently running Fedora 13 and trying to switch to F15, as I was not able to upgrade to F14 because of the same reasons.

I've downloaded and burned the DVD image of Fedora 15 for x86_64 platforms (which seems to work fine) and Anaconda fails after selecting the device type class (just after choosing the language and the keyboard type), while scanning existing the partitions. The top error message is:

  File "/usr/lib64/python2.7/site-packages/pyanaconda/storage/devicelibs/mdraid.py", line 81, in raidLevel
    raise ValueError, "invalid raid level descriptor %s" % descriptor

I use a box with three 500GB SATA disks. I installed Fedora 13 from scratch on the first one, then created later two RAID5 volumes with mdadm on it. Both these volumes use three identical partitions numbered sd{a,b,c}7 and sd{a,b,c}8. The first one contains my /home, is 92Go wide and 3/4 full.

As said before, the problem already occured with the previous release (14) and probably before, whether I try to upgrade from a running system with PackageKit or reinstall it from scratch with a DVD. 

I'd like the system just to ignore these partitions and let me re-set them up manually as the system is reinstalled, but I can't get the installer to do that. 

I tried to pass the options "nodmraid" and "nompath" but it didn't help. Whatever I do, it always crashes at the same stage.

Attached the bug report and some disk information