Seabios vs OVMF (UEFI) | Security & OpenSource Question

Anotheruser

Member
Sep 21, 2022
70
19
13
I am currently in the process of choosing settings for my new VM Templates and one thing i am still not sure about is if i should use Seabios or OVMF as my new standard.
Already did some research and saw the stuff / problems regarding pcie passthrough with seabios and i am aware that i might need to choose seabios for some vm templates and uefi for others depending on use case.

Ok so the questions that are still open:
  1. Are there any obvious drawbacks to just sticking to uefi, if i dont mind the extra efi disks and stick to newer Operating Systems?
  2. Is there a security difference between seabios and uefi?
  3. Is ovmf (uefi) effected / vulnerable to the same uefi-rootkits / exploits as their hardware counterparts?
  4. Has Seabios similar problems like mentioned in 3?
  5. OVMF itself is as far as i figured out opensource, most uefi implementations not,
    is there any additional proprietary code in a vm using ovmf compared to an identical one running seabios?
Thanks for all answers :)
 

About

The Proxmox community has been around for many years and offers help and support for Proxmox VE, Proxmox Backup Server, and Proxmox Mail Gateway.
We think our community is one of the best thanks to people like you!

Get your subscription!

The Proxmox team works very hard to make sure you are running the best software and getting stable updates and security enhancements, as well as quick enterprise support. Tens of thousands of happy customers have a Proxmox subscription. Get yours easily in our online shop.

Buy now!