Matt wrote:
> I am trying to install Centos 7 on a couple 4TB drives with software
> raid. In the Supermicro bios I set UEFI/BIOS boot mode to legacy. I
> am using the Centos 7 minimal install ISO flashed to a USB thumb
> drive.
>
> So I do custom drive layout something like this using sda and sdb.
>
> Create /boot as 512 MB XFS raid1 array.
>
> Create SWAP as 32 GB SWAP raid1 array.
>
> Create / on 3.xxx TB XFS raid1 array.
>
> I then get error.
>
> "Your BIOS-based system needs a special partition to boot from a GPT
> disk label. To countinue, please create a 1MiB 'biosboot' type
> partition."
>
> I cannot seem to create the biosboot partition so it is mirrored to
> both drives for redundancy. Any ideas how to do this? I want
> everything mirrored to both drives.
Yeah, you need to create the 1M partition, preferably the first, and its
type, like ext4 or xfs or swap, is, in the dropdown, biosboot.
mark