As the title says, my bootable usb is not showing up in the boot menu for my ThinkPad e14 AMD ryzen 5 7530u , gen 5 I think. I have disabled secure boot in the uefi and disabled fast startup in windows. Am I missing anything ? Note: this is my first time using a uefi bios so I don’t know if there are any other kinks to mess with .

Edit : I contacted lenovo support for the above issue but even they couldn’t find the answer so I guess won’t be using linux for this laptop. But since it’s for uni I guess it’s fine. I will just use WSL

  • biscuitswalrus@aussie.zone
    1·
    2 months ago

    I suggest a few more things:

    Try a different brand usb. Different motherboards sometimes don’t support some usb brands. In fact, a Lenovo server I rebuilt refused to boot off certain usbs.

    Some motherboards don’t initialise boot off some usb ports. Sometimes the additional ports are on another controller and initialise too slow.

    Just try a straight working Ubuntu live boot usb to remove any ventoy from equation. Ubuntu has real signed uefi (and no shim) granted by Microsoft. I think that’s how it works, uefi is a mess.

    Try to start isolating all the different factors, and there could be more. It doesn’t necessarily mean anything definitive if it works on another machine.

      • biscuitswalrus@aussie.zone
        1·
        2 months ago

        And you probably confirmed that live boot worked too I assume.

        In the actual bios, can you see a boot order and see uefi for Windows/whatever is on your internal disk? But not any other entries?

          • biscuitswalrus@aussie.zone
            1·
            2 months ago

            Other then legacy and uefi does it have a CSM compatibility support mode? An option to enable usb initialisation before bios? Eg wait for usb initialisation?

            Some “boot faster” options kind of reorder boot initialisation to a point where it’s not holding the system back.

            Though I’m really running out of suggestions… I can imagine you’re pretty frustrated. I know my Dell laptop was a pain to get the right settings to get usb to boot and the stupid 100db beep to silent on boot interruption.