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roby84 09-20-2013 11:24 AM

Error about GPT and EFI during Centos installation
 
Hello,

I have a Dell PowerEdge 2950 server with 4 x 2 TB hdd and during Centos 6.4 installation, after setting partition layout, I receive the following message:

Warning:
You are using a GPT bootdisk on a non-EFI system. This may not work, depending on your BIOS's support for booting from GPT disks.

I read that this could be related to setting a partition bigger than 2 TB, and in fact I set a 5 TB partition, because I need to use it as a backup storage.

Except for that, everything worked fine: the installation has completed successfully, the system boots without any problem, and the partition seems correctly recognized with 5 TB of space by "df" command.

The only anomalies are that I get these errors while booting the system:

ERST: Failed to get Error Log Address Range

[drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 48

So my questions are: are the above problems serious or I can ignore them?
Can I go ahead and use this server or I could face problems in the future?

Thank you

Roberto

Ztcoracat 10-09-2013 03:16 AM

Looking at this error-
Code:

Warning:
You are using a GPT bootdisk on a non-EFI system. This may not work, depending on your BIOS's support for booting from GPT disks.

Do you have UEFI BIOS?

Quote:

in fact I set a 5 TB partition, because I need to use it as a backup storage.
I (think) you only need GPT partitioning when your HDD is 2.2 TB or larger. But like the error said the bootdisk is on a non-EFI sytem.
So I don't know if this disk is the right one.

Quote:

Can I go ahead and use this server or I could face problems in the future?
Sorry I am not on a server so I can not help you.

Other members here that are running CentOS and have more experience would know-
It is my hope that they will chime in-

Ztcoracat 10-09-2013 03:23 AM

Linux kernel (>2.6.30?)can boot both UEFI and classic BIOS from GPT.
http://phoronix.com/forums/showthrea...d-%28repost%29

http://stackoverflow.com/questions/1...non-efi-system


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