No longer able to boot from USB

I have Fedora running happily on my HP Probook, but I wanted to mess around with a Linux Mint live USB. So I made one, plugged it in, and restarted my laptop, but it just goes to my normal Fedora install. To check whether the mint USB was the issue I tried to boot from the USB I used to install Fedora, but that doesn’t work either. I’ve gone into the bios and checked the USB port is the first thing to load (it doesn’t mention the stick, just says 'USB: ’ as if the USB port is empty) and I’ve tried it with safe mode turned off, but no matter what it ignores the USB and boots straight into my normal install. This wasn’t an issue when it had Windows and I first wanted to install Fedora, so why is it a problem now?

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Most laptops have a bios boot menu that can be used to select the usb device for booting. That menu is usually accessed with F8, F10, F11, or F12 on most systems. Instead of entering the bios setup simply try opening the bios boot menu.

Might have to do with UEFI vs Legacy boot. If you can’t get what Jeff V says to try working try disabling all the UEFI and enabling Legacy. Just check before trying on how to restart a laptop if you get the no OS found error. The battery will prevent a last resort un-plug hard reset.

The USB ports aren’t listed at all on the boot menu.

Edit: I’ll look up the restart thing Dale mentioned when I get a chance to.

Firstly to check USB stick go to fedora system plug in and see with file manager it is mounting at all .

Yes, it mounts. I can open it and look at the files.

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Then plug in USB shutdown system and boot up with pressing F2 to go to bios check boot menu for list of bootable devices

That was the first thing I did, I’ve tried that repeatedly.

When you say I need to know how to fix the no OS found error, do you just mean because I might not be able to boot back into my regular install with legacy enabled?


check boot order it is set

After plugging in the USB (which can mount and be opened, which is the exact USB I used to install Fedora on this exact laptop) and restarting to the boot menu I see this:

The USB isn’t there. When this laptop had Windows installed on it this exact USB showed up and could be selected, but not now.

Is there an option in your Bios for USB or peripheral initialization? If it’s disabled or partial, try switching to full initialization. Also, check for a fast boot option. Maybe try switching to normal boot.

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I can look for the initialization option later, but I know off the top of my head that there is indeed a fast boot option that’s enabled. Thanks for the suggestions, I’ll let you know how it goes.


SHE LIVES!

I didn’t find an initialization option, but after disabling fast boot it loaded straight into the USB I had plugged in. Thanks everyone!

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