PS: With "emulates" I mean that it uses RAM to store variables. This naturally ends up getting cleared on a reboot, which is possibly what you're seeing.
On Tue, Oct 18, 2022 at 10:16 PM Pedro Falcato <pedro.falc...@gmail.com> wrote: > Hi, > > (cc devel) > NVRAM has nothing to do with disks or EFI partitions. > Are you using OVMF? How are you using it? OVMF itself emulates variable > storage if you run it in the wrong way. > > On Tue, Oct 18, 2022 at 4:00 PM <het.g...@nutanix.com> wrote: > >> Hi EDK2 community, >> >> I have a used case, where I am trying to change boot order for multiboot >> (multiple OS) systems and for singleboot systems. I was able to change the >> boot order and set auto boot time-out only if there is EFI partition >> available in a disk. The boot order is not persisted i.e. on a VM reboot, >> the boot order sets back to default in absence of disk or EFI partition in >> disk. Even though there is a NVRAM disk available, I am not able to change >> the boot order in UEFI firmware settings. So, I have a couple of doubts >> regarding this, so decided to start with a discussion. >> 1. Is it necessary to have EFI partition in disks to store UEFI variables >> like boot order / auto boot time-out and others ? >> 2. Does the workflow of OVMF demands to store the UEFI variables only >> into EFI partition and not into NVRAM disk ? >> >> >> >> >> >> > > -- > Pedro Falcato > -- Pedro Falcato -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#95346): https://edk2.groups.io/g/devel/message/95346 Mute This Topic: https://groups.io/mt/94418148/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
