[BitVisor-devel-en:90] Re: Booting from USB

[Hideki EIRAKU]

Hello,

From: "Dr. Lonnie Cumberland, PhD" <lonnie at outstep.com>
Subject: [BitVisor-devel-en:89] Booting from USB
Date: Mon, 29 Jan 2024 11:33:55 -0500

> My thoughts there to set up a USB stick with a version of TinyCore
> Linux or Ubuntu that boots into RAM and does not touch the drives and
> am wondering if it would be possible to have BitVisor installed to
> boot from the USB and then allow a boot of the Live OS?

Booting from USB storage is possible.  In case of BIOS environment,
using GNU GRUB is easy for such use, because GNU GRUB is normally used
for booting Linux.  GRUB multiboot command can boot BitVisor
bitvisor.elf and BitVisor starts GNU GRUB by loading the MBR again, on
BIOS environment.  On UEFI environment, BitVisor loadvmm.efi can be
started from EFI Shell or GNU GRUB (using chainload command, from a
filesystem that the firmware understands - normally FAT32).  The
loadvmm.efi starts BitVisor and exits normally on a virtual machine to
back to the EFI Shell or GNU GRUB.  Note that Secure Boot should be
disabled.

-- 
Hideki EIRAKU <hdk at igel.co.jp>