[arch-general] Adding new disks > 2T to system that boots with grub, can GPT be used for new disks?

Damjan Georgievski gdamjan at gmail.com
Mon Mar 21 02:59:29 UTC 2016

>   I'm confused by the partitioning wiki
> (https://wiki.archlinux.org/index.php/Partitioning). It says:
> If using GRUB legacy as the bootloader, one must use MBR
>   What about adding disks to this system? Must they be partitioned MBR or can I
> use GPT on the additional disks. (I haven't used GPT before, so this has me
> stumped).
>   Current setup is Arch booting from grub (grub2) on 1T raid1 mdadm array. I
> have a pair of 3T drives I want to add to the system. (as a 3T raid1 mdadm array).
>   I want to use the entire disk in a single partition which is why I want to
> partition the disks GPT (leaving 100M unpartitioned at the end).
>   Can I use GPT on the new disks, or am I stuck with MBR?

since you're not booting of the new disks, it doesn't matter.

and that "Grub Legacy" is grub 0.9x not grub2. grub2 can boot of GPT
easily (it just needs a 2mb legacy boot partition).


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