The quote above is from a VirtualBox developer, posted as a comment on this bug report. Of course, it is hard to say for sure, just as it is hard to say for sure how much security benefit signing modules even provides, particularly on a desktop system. Part of the problem is that any automatic way to sign kernel modules is probably only marginally safer than disabling signing altogether. With the latest 6.0.10 release though, VirtualBox supports UEFI Secure Boot driver signing on Ubuntu and Debian 10+ hosts, so users no longer need to manually sign the vbox kernel modules, or disable secure boot in order to run virtual machines.

VirtualBox is a x86 and AMD64/Intel64 virtualization software that runs on Windows, Linux, macOS and Solaris, and supports a large number of guest operating systems, including Windows Linux, Solaris, OpenSolaris, OS/2 and OpenBSD.Ī VirtualBox bug about secure boot driver signing not working on Linux was opened 6 years ago, and it has yet to be marked as completely fixed. I wrote beginners tutorial that help setting up development environment needed for UEFI application development using OVMF.VirtualBox 6.0.10 was released today, and while this is a maintenance release, with mostly bug fixes, it does come with an important addition: support for UEFI secure boot driver signing on Ubuntu and Debian 10+ hosts. using QEMU also give you ability to emulate your hardware and write drivers/applications in UEFI that use it.OVMF was developed initially for QEMU and it is adapted by various other virtual machines, because of that there is much more support for OVMF on QEMU then OVMF on VirtualBox.Because you can hack OVMF and learn how it works internally, this give you better understanding, VirtualBox hide internals and I'm not sure if it allow firmware replacement.

I would suggest to use OVMF (Open Virtual Machine Firmware) directly with QEMU not through VirtualBox. fs0: switch to FS0 file system.Īccording to UEFI specification 2.5 section 12.3:ĮFI encompasses the use of FAT32 for a system partition, and FAT12 or FAT16 for removable

To switch between file systems use DOS like syntax command ie. Please create FAT32 partition on your disk, then you will be able to see fsX in map output. If you can't see fsX in output of map command then it means that non of attached block devices ( blkX) contain supported file system. Your image need file system supported by UEFI.

How to use virtualbox efi