gpt formatting and uefi booting
m.roth at 5-cent.us
m.roth at 5-cent.us
Wed Jun 25 14:58:31 UTC 2014
Doll, Margaret Ann wrote:
> I have a Dell PowerEdge T120 with 12 4Tb disks. I want to use the first
> disk as the system disk and the remaining 11 as a raid 5.
>
> I have the first disk set up as a raid 0. I installed RedHat 6.4 server
> software on the first disk. I set up the Dell to use a uefi boot instead
> of bios. However, I cannot boot up the new system as the bios does not
> support the size of the system disk.
First, update it to 6.5. Like, yesterday. 6.4 will contain things like the
heartbleed bug, etc.
>
> I gather I should set up gpt partitioning instead of the default mbr on
> the first disk.
>
> How do I do this?
You can either use the gui gparted, or the user hostile parted. Note that
if you do this, you'll probably have to reinstall - is that ok?
One other option would be to partition disk 0, say, into two 2GB
partitions, and RAID 1 them. Alternatively, what we're doing here for
drives 1TB and over is to make a root partition of 500GB, and the rest as
another partition.
$ parted -a opt
> mklabel gpt
> mkpart pri (don't be confused - when they say "name, they mean
primary or extended....)
>> start: 0.0GB (will make sure it's actually aligned)
>> end: 100%
> q
will make you one big drive.
mark
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