I've just built a new 810 core using the Internet install process. Everything has gone smoothly through to the creation of Diskless MDs.
The next goal is to create a RAID array using four 1TB drives recycled from my 710 system. I've reinitialized the drives in every way I can imagine, including:
1) deleting old partitions and creating new ones via gparted
2) writing over the boot sectors ( dd if=/dev/null of=/dev/sdX bs=512 count=1 )
3) resetting the superblock on each drive ( mdadm --zero-superblock /dev/sdx1 )
Going to the web admin page on the core, under Advanced->Configuration->RAID, I created the array and added the drive as described in the wiki here: http://wiki.linuxmce.com/index.php/Create_RAID_in_LMCE
Then, the page shows all of the drives as spare and the array status as "DEGRADED / REBUILDING". However, the build seems to go on indefinitely. Letting it run for 24 hours, the status bar has not moved and there is no evidence of disk activity or of mdadm doing anything in the process list.
Does this the create raid process still work in LMCE? Am I doing anything wrong.
This was totally painless in 710 and I can't imagine that any of the supporting scripts have changed. Please advise.