Someone posted this somewhere else:
"ok, what seems to be the problem is that MD device doesn't get running automaticly.

What happens when you run command "mdrun"?
Do you get /dev/md0 manually running by using mdstat with --assemble parameter?

If later, but not first. There is some problem with mdrun script.

Also, have you changed the type of /dev/hda1 to raid autodetect? If not, you have to explicityl help mdrun (eg. by using some conffile of mdadm) to make it scan also that device."

mdrun gave this:
md: md0 stopped
md: could not lock hda1
md: md_import_device returned -16
mdadm: failed to add /dev/hda1 to /dev/md0: device or resource busy
md: bug in file drivers/md/md.c, line 1513

md: o **********************************
md: Complete raid state printout
md: o **********************************
md0:
md: o **********************************

mdadm: failed to RUN_ARRAY /dev/md0: invalid argument


About your other two questions:
1. mdadm --assemble --scan gives "mdadm: no arrays found in config file"
2. The partition-type is set to (fd): Linux Raid autodetect

hi denniz

welcome back. Sorry friend but I could not find a solution even at my LUG. I guess it's time for me to pack my bags and let some expert guide you.

Sorry.

Thanks for all your help linuxlala! Don't worry about not being able to help, you have helped me a great deal already (I wouldn't be as far as I am now without your help and advice, honestly).

I have started a similar thread in a different forum, have a look and perhaps you can add some advice there as well!

http://www.linuxquestions.org/questi...hreadid=218808

yes, the solution can now be found in the other thread (at the end).

Hope this works for you too!