Ubuntu Gutsy Tribe5 compatibility problems

[David]

I'm trying to get dmraid working with the latest Ubuntu Gutsy
prerelease CD Tribe5. The first time I ran the Live CD everything worked 
fine, but after installing to the fakeraid it wouldn't boot (couldn't 
find /dev/mapper/pdc_bhifjacba7) and now even running from the Tribe5 
Live CD won't find the volumes either. Basically it finds the raid set 
but none of the volumes on it and there is nothing in /dev/mapper. If I 
stick in the Feisty Live DVD and boot, it finds everything no problem.

I've created a bug report with more details...
https://bugs.launchpad.net/ubuntu/+source/devmapper/+bug/139736

This looks very familiar to:
https://www.redhat.com/archives/ataraid-list/2007-July/msg00032.html
https://bugzilla.redhat.com/show_bug.cgi?id=253695