>> 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.
Is there a way to get this partition mirrored on both drives?
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