Re: [arch-general] Adding new disks > 2T to system that boots with grub, can GPT be used for new disks?
On 03/21/2016 10:10 AM, L. Rose wrote: > Unless you want to boot from the new disks, you should be able to use GPT on > them. Are you sure you're using GRUB legacy? Yes, Everything worked out fine. I left 3M at the beginning just in the off chance I would want to place grub2 boot code on the array and left 100M at the end to insure painless disk replacement. Created a 2.9T GPT partition using gdisk, then the mdadm array, all worked great. (it did take hours for the initial sync and bitmap creation for the 3T array -- 237 minutes if I recall correctly) Absolutely no problems though. -- David C. Rankin, J.D.,P.E.
Re: [arch-general] Adding new disks > 2T to system that boots with grub, can GPT be used for new disks?
Unless you want to boot from the new disks, you should be able to use GPT on them. Are you sure you're using GRUB legacy? On 21.03.2016 03:33, David C. Rankin wrote: All, 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?
Re: [arch-general] Adding new disks > 2T to system that boots with grub, can GPT be used for new disks?
On 03/20/2016 09:59 PM, Damjan Georgievski wrote: > 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). Thanks Damjan, That is what I suspected, but I couldn't confirm. -- David C. Rankin, J.D.,P.E.
Re: [arch-general] Adding new disks > 2T to system that boots with grub, can GPT be used for new disks?
> 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). -- damjan
