How do i replace OVMF with SeaBIOS

[Fatih90]

Hi, i really dont understand the purpose of efi on a vm, whats the point ? it even starts my windows 10 vm slower then SeaBIOS

anyway is there a way to replece my installed vm with OVMF with SeaBIOS ?

 

[Stefan_R]

Hi, i really dont understand the purpose of efi on a vm, whats the point ?

Some applications like PCIe passthrough sometimes require it. It can also help to support certain OS features. But yes, a regular VM doesn't need it - which is why it isn't default in PVE

it even starts my windows 10 vm slower then SeaBIOS

Hm, interesting, that shouldn't really happen. At least I haven't experienced it itself. How does the slowdown manifest?

anyway is there a way to replece my installed vm with OVMF with SeaBIOS ?

Replacing the BIOS is easy, just change it in the 'Hardware' tab of PVE and remove the 'efidisk', the trouble starts with converting the guest to use the new bootloader. If you can afford a reinstall, that's probably the easiest way, otherwise you'd have to lookup a guide on how to change the boot mode of the OS you're using - that's OS specific and often rather involved.