On 5/11/2014 1:31 PM, Steven wrote:

Hello Guy's,

i recently setuped a small ubuntu 14.4 Server, with 1x SSD Drive (Ubuntu
installation on it) and 2x 3TB HDD drive, wich i combined to a Raid1
with mdadm (File Shares are on the Raid).

now sometimes (arround every 3 time) i reboot, the Server hangs on boot:

|incrementally starting raid arrays
mdadm: Create user root not found
mdadm: create group disk not found
incrementally started raid arrays|

these 4 lines keep repeating ( i waited arround 10 mins) if i reboot
with ctrl + alt + del, the sever starts normal.
If i look at the raid with  "|mdadm --detail /dev/md0" everything looks ok.

as i'M just a linux beginer and didn't find anything related to that
error on the web, im really desperate.

As far as i figured the problem out, something within the initramfs
seems to go wrong?
I allready tried to add these boot options to Grub
bootdegraded=true
raid=noautodetect

didn't help.

You're not booting the OS from the md array, but from a single SSD,
thus nothing about the array is needed in grub nor in the initrd image.
 The array should be started via post-boot scripts.

Cheers,

Stan