Currently only macOS 12+ macOS and Linux are supported.
This be the same as the operating system (macOS/Linux) to use the default boot loader. macOS 13+ UEFI bootloader must be used to boot Linux with graphics support.
Select an uncompressed Linux kernel to boot from.
Optionally select an initial ramdisk.
The kernel boot arguments.
console=hvc0 root=/dev/vda is highly recommended.
Pass in an universal macOS IPSW to install.