In my previous post I forgot to write that previous procedure brought array back, but only until next reboot. To fix this I did the following: $ sudo mdadm --detail /dev/md2
to display array characteristics with that information I have updated /etc/mdadm/mdadm.conf because md2 ARRAY was deleted from there. -- Raid10 array not assembled at boot, all disks are marked as spare https://bugs.launchpad.net/bugs/316670 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs