I'm trying to install Ubuntu Server 18.04 from USB on an old computer. I have two 4TB drives I want to run in RAID 1, I also have two other drives running win 7.
The motherboard is Gigabyte GA-X48-DQ6, (it is without EFI)
When I partition the drives according to this guide: https://help.ubuntu.com/lts/serverguide/advanced-installation.html.en I'm not able to set the bootable flag on.
Following this video: https://www.youtube.com/watch?v=4KiWxMDKu94, I get an error saying "Unable to install GRUB in /dev/sda".
My 4TB drives are recognized as sda and sdc. And I allocate 15GB as swap and the rest as Ext4, with/as a mount point.
Can anyone help with this issue?
EDIT: The problem was related to the drive size. GRUB install is problematic on drives > 2TB. Solution was to install OS on another drive and then set up raid following this solution: How can I create a RAID array with >2TB disks?
sudo lsblk -fafter you choose the boot menu option “Try Ubuntu”. Thanks. – David Foerster Sep 14 '18 at 10:15