centos custom iso not booting from uefi mode

You will have to turn off UEFI in the BIOS, i had to do it for my flavors
http://www.pcmag.com/article2/0,2817,2417361,00.asp

How did you create the ISO, did you copy all necessary files to your disk? What's you media, CD or USB?

Actually it is working when i am instaling a raw image but its failing when i am installing with my own custom image using kickstart

Yes all files are placed correctly including EFI directorey

my custom iso work correctly with leagcy bios mode

have you tried the original media?
mount that iso UEFI and see if it boots correctly
if it does, then there is an issue with your custom media

Are you trying to boot via USB media?

Is there any reason you need to boot into UEFI mode? Personally I can't think of any good reason to do so, even if I waste hours and hours trying to find a reason. Just change your BIOS to legacy mode and it should work fine.

Hi yes i know some issue is there with custom iso but same i want to know how to resolve it.

actually uefi mode have larger storage capacity from HP gen 9 servers other wise it wont be able to use whole capability of hardware

Also could you help me how to deal or go with GPT enabled disk and what entries need to done in kickstart cfg file ? might be that could be a issue because i am using kickstart file for installation in custom iso

Have a look at below article and advice:
http://www.cyberciti.biz/tips/fdisk-unable-to-create-partition-greater-2tb.html

if i can create GPT parttion layout in my  kickstart config so that it could suport EFI boot?

for now i am using below parttion lay out:

## Partion Declaration

part /boot --fstype=ext4 --size=256
part pv.008226 --size=25600
part pv.008227 --size=15360
 
volgroup vg_infra --pesize=4096 pv.008227
logvol /images --fstype=ext4 --name=lv_images --vgname=vg_infra --size=4096
volgroup vg_root --pesize=4096 pv.008226
logvol /home --fstype=ext4 --name=lv_home --vgname=vg_root --size=1024
logvol /opt --fstype=ext4 --name=lv_opt --vgname=vg_root --size=512
logvol / --fstype=ext4 --name=lv_root --vgname=vg_root --size=3072
logvol swap --name=lv_swap --vgname=vg_root --size=2048
logvol /system --fstype=ext4 --name=lv_system --vgname=vg_root --size=128
logvol /tmp --fstype=ext4 --name=lv_tmp --vgname=vg_root --size=2048
logvol /usr --fstype=ext4 --name=lv_usr --vgname=vg_root --size=4096
logvol /var --fstype=ext4 --name=lv_var --vgname=vg_root --size=6144

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ok thanks Gheist and rindi - one small query

## Partion Declaration

part /boot --fstype=ext4 --size=256
part pv.008226 --size=25600
part pv.008227 --size=15360
 

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in above code i want to configure pv in such a way so that 1 pv take fix size and 2 pv took rest of the disk size for ex.

disk size = 100 gb

pv1 i define 20 the pv2 automatically select 80 gb because i want to make it feasible with diff size of disks.

thanks

You need 100MB /boot/efi
500MB /boot
Some swap
Some 20-50GB /
Rest at your choice

namely /boot must be separate so you can recover from broken /

If you have disabled UEFI mode as I recommended, you don't need an EFI partition. It also isn't absolutely necessary to have a separate /boot partition. It is usually enough to have a / partition for the OS, a Swap partition, and maybe a separate /home partition for user profiles and data.

You dont have to disable UEFI completely, just secure boot - image signature check...
You will thank me later for separate /boot partition.

thank you i got it but above i am asking something diffrent - i need to know the exact syntax of defining PV's in my kicstart file like i need 2 PV and want 1 PV of 20GB and second PV should take rest of the size of disk

please help?

Initial question was about and around UEFI boot rejecting your CD image...

Agreed, open a new question for that.

Okay thanks :)

done :

this is the new one:  https://www.experts-exchange.com/questions/28664557/partition-customisation-for-kickstart-file.html

Thanks to both :)