[charliebrown]

Hey,

So i got a problem, i setup a box for a friend a while back ( way back ) and i think i remoed the countdown timer for pressing esc to boot from usb.
How can i boot from usb? or is it suppose to autoboot when usb is inserted? Do i have the wrong fileformat on my linux mint installer?

any help whould be useful

unless you read the firmware, modified it, and re-flashed, you didn't remove the boot menu timeout. What's more likey is that the USB stick you're using isn't being detected, so you're not getting the ESC prompt at all. Automatically booting to USB is an option one chooses at time of firmware installation, but either way you'd still get the ESC prompt for the boot menu.

Redo the Mint installer using Rufus (assuming you're creating it from Windows, otherwise just dd the ISO from Linux) on another USB stick / SD card

Hi thanks for feedback, it was my usb stick that had gone to shit. Wrote the iso to another usb stick and worked straight away. Thanks for the answer!