tag
UEFI
3 posts
Why a VM Needs Two Firmware Files: AAVMF and OVMF Explained
A VM has no motherboard, so its UEFI firmware comes as files: one program shared by every VM, and one settings file per VM. Mix them up and a VM stops booting.
How a Computer Boots Before Any OS Exists: BIOS, UEFI, and GPT
At power-on a CPU knows nothing about disks or files. Firmware fills that gap, and its two generations explain most of what is confusing about booting.
Fixing virt-install on arm64: Security Violation, dnsmasq Port 53, and the qemu:///session Trap
The virt-install command in most ARM64 guides is correct, and it still fails, for four reasons that come from defaults rather than the command. Here is each.