Seems like a fair few people have had similar problems, but I've tried all the suggestions in other threads to no avail.
I have installed Ubuntu 14.04 on a HP ProLiant ML310e Server via burning ISO of the Ubuntu Server and following the process.
I have 2 HDDs which I want to set up as RAID 1, and during the Ubunutu Server install, it gave me the option to set this up as it installed, so I did.
Install processed fine, with no reported errors.
Upon rebooting, the system does not even attempt to boot from HDD, and just from CDROM and NIC, both of which obviously fail.
I then booted into Live CD and ran Boot Repair which gave me a heap of commands to run in Terminal and eventually game me this report: http://paste.ubuntu.com/7630512/
Then in the DISK Utility it shows my two physical drives each partitioned as "master boot record" "Linux Raid auto (bootable) and Linux Raid Member (dev/sda1 and dev/sdb1)
One drive (sda) has partition 1 (main, linux raid member), plus extended partition 2, plus swap partition 5 plus free space 1.1MB
Second drive (sdb) has just partition 1 (main linux raid member) plus free space 1.1MB
Disk Utility also shows the RAID Array, /dev/md/0, contents ext4 mounted at /mnt/boot-sav/md0
Here are some screenshots:
And still, upon restart, it just won't boot - just goes straight to CDROM and NIC.
The BIOS boot order has Hard Drive C: (See Boot Controller Order) as #1 And Boot Controller Order just has one option, which is PCI Embedeed HP Dynamic Smart Array B120i Controller.
Wonder if this is anything to do with it, as I'm not using the HP's own Raid software (tried that, also didn't work).
Any advice, most appreciated. Have been trying / reinstalling / trying for days now!
EDIT: if I use the boot override to force it to boot from HDD, it doesn't even look like it tries and goes straight to attempting to book from CD-ROM