Booting from monitor USB

Discussion in 'MacBook Pro' started by danbcooper, Sep 4, 2016.

  1. danbcooper macrumors member

    Dec 7, 2015
    Hi, I have a bootcamp partition on an external usb flashdrive. Is it possible to plug the mac to an external monitor (lets say Dell's U2515H), then plug the flashdrive to one of the monitors USB 3.0 and boot from there?

  2. VAGDesign macrumors 6502


    Feb 1, 2014
    I am 99% sure that USB bus from any monitor's hub is working after the monitor's/GPU driver is loaded (inside OS/Windows environment) and it's not loaded during boot.

    I may be wrong also...
  3. Samuelsan2001 macrumors 604

    Oct 24, 2013
    Unlikely, it's possible, in theory, with a USB hub built in to a monitor connected by thunderbolt, but as the poster above points out this has many possible points that may cause a problem. Give it a try and let us know.

    Checked out the linked monitor it only connects as a monitor there is no way to get data from the monitor to your computer so it certainly won't work with that monitor (nice though it is).
  4. Tolien macrumors member

    Jul 20, 2005
    It looks like it uses a separate USB cable (similar to my U2410s), so if you connect that to the Mac you should be good to go.
  5. Fishrrman macrumors G5


    Feb 20, 2009
    You can -try- to boot from the monitor's USB3 port.
    But my -guess- is going to be that it won't boot that way.

    Try this:
    a. Plug bootable flash drive into monitor's USB port
    b. Press power-on button
    c. Immediately hold down option key and keep holding it down until the startup manager appears
    d. Do you see an icon for the bootable flashdrive?
    e. If so, try selecting it with the pointer and hit return.
    f. What happens now?
  6. danbcooper thread starter macrumors member

    Dec 7, 2015
    It uses a separate USB cable to connect the built in usb hub to the computer.

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