Fedora14 does not reasseble raiddevices

[PlatinumAngel]

Hi!
Last week I reinstalled my fedora machine to achieve a clean, fresh and in the moment not working f14 installation.
I decided to make a raid0 device with two equal sata-drives. First i thought everything worked fine. I could access to the raid0 device made a gpt-partitiontable and made an ext4 partition.
But every time i reboot my machine the raid-array is broken. I can reassemble it by hand but this is nasty. i figured out, that the problem exist anywhere before or at the moment udev starts. This guy here seems to have exactly the same problem.
https://bugzilla.redhat.com/show_bug.cgi?id=649038

In some cases removing the kernel parameter rd_NO_MD in grub.conf fixes this problem. But I have no idea what this parameter does. Even here is no parameter with this name:
http://www.kernel.org/doc/Documentat...parameters.txt

Has anyone an idea what this parameter exactly does? I can’t imagine that this parameter prevents linux to reassemble raid-arrays at boot-time.

[megaloman]

I believe your issue is similar to one I had - see: https://bugzilla.redhat.com/show_bug.cgi?id=649262

apparently mdadm version in Fedora 14 has a bug which make it crash when rd_NO_MD rd_NO_DM options are set in grub.conf file.

rd_NO_MD rd_NO_DM - those options tell booting software not to look for MD devices, if they are not needed (ie. neither / nor swap are on raid devices) - removing those options will make booting software to look for them and consequently take time.