Should I bother with UEFI

I hit a brick wall to ESXi installed using a UEFI boot. The connection USB or CD give issues (see my other post for details).

I can get a startup BIOS will and have installed ESXi on a USB, but I was really hoping to get a UEFI system (mostly because it is the 'new' goodness).

Is this obsessed more useful? My presumption is that UEFI is a better interface to decide the drivers which is probably even more important in a virtualized environment, but I'm willing to accept it is may be full of shit.

Bottom line... is there significant benefits with UEFI to a home server? Should I give up and just go with the BIOS?

Hi cfineman,

Versus UEFI BIOS makes no practical difference once ESXi is up and running and certainly no difference in what concerns drivers for devices that ESXi will use for your storage and network devices so that everything is in place and functioning.  The only difference (for practical purposes, anyway) is for the early start.

The sad reality is there are a lot of pieces (a lot) of subtly slightly broken firmware UEFI and UEFI Option ROM... The whole ecosystem UEFI is nowhere near as developed as the BIOS ecosystem - which took thirty - something years to sort the his differences and make things work as well as its 'architecture' allows.

UEFI boot is useful under certain conditions, when you boot from a disk greater than 2 TB (but ESXi can do with BIOS boot anyway).  UEFI boot is useful if you are interested in using Secure Boot (but ESXi does not support yet anyway).  UEFI boot is useful if you have a very large number of devices to boot, because it can provide the most control over the selection of the boot device and (firmware and configured) provide a boot time a lot faster that BIOS would have given the same hardware.  UEFI boot is useful if you are interested in learning the new 'kindness' (but only if you can find the right firmware and hardware to try it with).

If none of these reasons are particularly appeal to you, my personal recommendation is to try UEFI (as you did) and simply switch back on BIOS boot if you have problems (as you did).

I hope it's useful!  (Source: I am one of the developers of firmware virtual EFI of VMware.)  Compatibility problems are super difficult).

--

Darius

Tags: VMware

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