Linux Installation error

I have HP server DL 380 G8 and trying to install OEL 5.8 x86. Server has got 1.2tb x 3 HDD with RAID 5.
While defining the paritioning size and installaling it gave error regarding "GPT table..."


I tried to Linux Rescue mode and "dd=if /de/sda'......................." but getting as dev/sda as read only

also tried parted/dev/sda
again /dev/sda read only

how to correct it on order to install oel 5.8 succeefully , i did the OS matrix and it supports
LVL 1
kurajeshSenior Systems AnalystAsked:
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Seth SimmonsSr. Systems AdministratorCommented:
you need to boot UEFI with that configuration since it's over 2tb
last i knew proliant servers still didn't support UEFI
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kurajeshSenior Systems AnalystAuthor Commented:
is there any other way to proceed
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Seth SimmonsSr. Systems AdministratorCommented:
this is a hardware limitation; the only way around it is to have a virtual disk less than 2tb
a secondary disk 2tb+ is fine but can't be the first to boot from
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kurajeshSenior Systems AnalystAuthor Commented:
shall i remove the 2 phsical 1.2 tb and keep only one 1.2tb hdd
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Seth SimmonsSr. Systems AdministratorCommented:
that would work; you just don't have any redundancy
if you removed 1 drive and made a raid 1 with 2 drives it works with redundancy
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gheistCommented:
You must use x86_64 installation disk for UEFI/EFI boot and GPT support.
And start with 5.10 and not 2 years old release. (Why not EL7 BTW)
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rindiCommented:
UEFI is not needed to boot GPT disks in Linux, that limitation is only for m$ OS's. But I absolutely agree that you should use a current OS.
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gheistCommented:
UEFI in IBM Server does not recognize RHEL5.10 DVD, also there is not a single mention in RHEL5 install guide that grub supports UEFI.
6.3 on the other hand is first RHEL6 with full UEFI/GPT support.
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Seth SimmonsSr. Systems AdministratorCommented:
what was the solution to this?
you stated in your other question you installed successfully
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kurajeshSenior Systems AnalystAuthor Commented:
sorry for the delay, i used oel 5.10
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gheistCommented:
I think you can grade this question...
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kurajeshSenior Systems AnalystAuthor Commented:
I've requested that this question be deleted for the following reason:

i had to proceed with oel 5.10 and it was fine then
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gheistCommented:
Since you confirmed  http:#a40203827 is an answer i think you can grade it too.
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