Description of problem: boot from usb live fedora 15 breaks my current system which is ubuntu 10.04, which is 3 disk raid0 /md0 /md1 /md1 it becomes for some reason /md125 /md126 /md0 which makes the system unbootable very strange as i didnt install anything, only booted the live fedora system. Version-Release number of selected component (if applicable): f15 How reproducible: Steps to Reproduce: 1. boot with live usb into the live system 2. reboot pc as per normal 3. Actual results: stops workin at boot with his error error: non such disk. grub rescue> Expected results: system should boot as per normal Additional info:
There is no coordination between Fedora mdadm usage and Ubuntu mdadm usage. In particular, there are different superblock versions that are likely in use and different methods of numbering arrays. Fedora is switching away from numbering arrays entirely and going to name based array recognition. It's possible that something in our mdadm usage caused the superminor number in your existing arrays to get updated, resulting in this change in names, but this sort of cross distro interaction is not likely something I can properly debug (especially as I don't even know what the live USB image does to bring the arrays up). If anyone can fix this, it's likely going to have to be the live image people, not me.