I tried booting a server that I built with :
- multiple usb sticks
- different images (distro and version Desktop Server)
- I'm using balenaEtcher on MacOS to burn my images
what I've done in chronological order :
- Testing ubuntu 18.04 Server on Usb stick 1 : failed
- Testing ubuntu 18.04 Server on Usb stick 2 : failed
- Testing ubuntu 18.04 Server on Usb stick 1 on my Mac : succeeded
- Testing ubuntu 18.04 Desktop on Usb stick 1 : succeeded twice in a row but I had to interrupt the process because it ran too slow (keyboard not repsonding for a minute then OK for 10 seconds and repeat process)
- Testing ubuntu 18.04 Desktop on Usb stick 1 : failed
- Testing ubuntu 18.04 Desktop on Usb stick 2 : failed
- Testing Debian netinst on Usb stick 1 : failed
- Testing Debian netinst on Usb stick 2 : failed Now using Live Linux Usb Creator on a windows VM on my mac: *
- Testing freshly downloaded Ubuntu 18.04 Server on known-good usb stick 3 : failed
I checked Ubuntu server image by following ubuntu tutorial on the subject. I could install Debian on another computer with no problem.
I have very few BIOS settings to tinkle with so I don't think that's the problem.
I don't know what else to try.
Edit : Well I tried Ubuntu Desktop/debian on USB stick 3 and it worked. Still I don't know why it refused to boot on Ubuntu server.