I did some research:
- Cent OS 6 still uses grub 1 which is not able to boot from GPT with a BIOS system
- AFAIK it’s not possible to install grub 2 onto Cent OS 6 because of missing rpms
My conclusion:
AFAIK the only way is to create multiple virtual hard drives smaller than 2 TB with mbr and to join them in one LVM.
(As discribed by Jim: First(s) installs, few observations and help still needed)
If the Neth ISO is bootable from efi it would also be possible to switch to EFI mode, but as I read it is not recommended for VMs because it may create some incompatibilities, but maybe it’s better because multiple hard drives slows down the VM.
Edit:
To install neth in EFI mode:
- Download Cent OS 6.6 minmal and install neth manually with yum
(The Cent OS minimal Image is bootable in efi mode)
http://mirror.nsc.liu.se/centos-store/centos/6.6/isos/x86_64/ - configuring network during install process simplifies the process
- an efi_boot partition is needed and if lvm is used a boot partition as well
Then there is no need to hassle with LVM extention as GPT can be used.