Don Armstrong wrote: > The error would be useful to know. Most likely one or more of them > dropped out of the array for some reason and you're booting off of one > which has a lower event count and it won't assemble. > > But it could be any number of things. > > The output of mdadm --examine /dev/sd[abcdef]1; when md0 fails to > assemble would also be useful.
In my case it is Dell OptiPlex 7xx - I have it under the desk for 2y now - but it looks like it is 5y old. When I looked into the drives they were detected but md disks seemed to be messed and not easy recovarable. What I observed that only raid0 was loaded but not raid1. After removing raid0 and loading raid1 I was able to see at least the partitions of the drives but I did not have time to go further, so as I had to do a lot in the office and @home I just shut it down. I hope I'll have some time next week to play with that. Good that I do not need a remote machine at the moment. I hope this helps regards