Copy bootcode to mirror disk?

Warren Block wblock at
Sat Jun 25 02:06:14 UTC 2016

On Fri, 24 Jun 2016, Vladislav Prodan wrote:

> Make the mirror bootable by installing bootcode in the MBR and bsdlabel and setting the active slice:
> # gpart bootcode -b /boot/mbr mirror/gm0
> # gpart set -a active -i 1 mirror/gm0
> # gpart bootcode -b /boot/boot mirror/gm0s1

That is only valid for a GPT disk.  The problem is that the boot 
partition is mirrored.  The bootcode can probably be written to 

However, as I said on the forums to this very same thread, the real 
error here is having mirrored GPT partitions.

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