I use Multisystem at the installfest the trick is if you create it on a uefi machine it will only boot a uefi machine and only run Uefi iso's. if you build it on a non uefi machine it will only be able to boot a non-uefi configured machine but them will only install as non uefi

most uefi computers can be set to either but is a bit of a pain to switch a installed image between grub and grub-efi and adding a efi partition the redirecting efi bios to the efi-grub.

most newer computers are not uniform on how they implement UEFI so a bit of trial and error is needed. turn off secure boot and all uefi/efi options for non uefi installs and secure boot may need to be turned off for uefi installs.

to create images on usb I use dd for most iso's and ubuntu startup disk creator 18.04 up also works for most usb media creation.

to update the bios again each is a bit different. some i can update with a fat usb drive that has the new image on it others I have to a usb dos boot disk.

feel free to stop by the installfest on the 20th at UAT and I would be happy to assist and I have all the media ready to go to update bios and install most linux distro's

On Mon, Apr 8, 2019 at 3:16 PM Jim <azanorak@gmail.com> wrote:

I have a USB stick with multisystem installed on it. I'm looking for
some way to boot from the CD then have the multisystem options available
as if I were able to boot from the USB stick.

On 4/8/19 2:24 PM, kitepilot@kitepilot.com wrote:
> If you boot from a CD/DVD and attach a properly configured USB device,
> it will just be another device.
> You just mount the partition and be done with it.
> High level, I know, let me know if you need more specifics.
> ET
>
> Jim writes:
>> I've got a computer with a Gigabyte P35-DS4L revision 1 motherboard
>> in it. The boot options include USB hard drives, but it won't boot
>> from a USB thumb drive. It will boot from an optical disc. Can
>> someone tell me how to make a boot CD that would then point to a
>> USB thumb drive? I don't want to have to go back to burning dozens
>> of boot discs.
>> I looked online and found many references to Gigabyte boards not
>> booting from USB. I found many people who had the same problem, and
>> some solutions for revision 2 of this board, but none for revision 1.
>> thanks
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