Ubuntu 14.04 : mounting /dev/md1 on /root failed: Device or Resource busy

Необходимо сделать паузу при детектировании устройств

# echo "sleep 60" > /etc/initramfs-tools/scripts/init-premount/delay_for_raid_array_to_build_before_mounting
 
# chmod +x /etc/initramfs-tools/scripts/init-premount/delay_for_raid_array_to_build_before_mounting

# update-initramfs -u