Cannot boot UBOS from boot stick on a PC
/docs/gears/faq-howto-troubleshooting/error-boot-pc-bootstick/
If you created a boot stick for x86_64
per then instructions in
/docs/gears/installation/x86_bootstick.md but the PC still boots from the
previously installed operating system, not UBOS, chances are that a setting in
your BIOS needs to be changed. To do that:
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Reboot your PC.
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Immediately after reboot, the PC’s BIOS runs. It usually tells you about a key to press to enter “settings” or “BIOS” or such. This key often is the delete key, or a function key. Press that key immediately. It tends to pass by quickly, so you may have to reboot again to catch it.
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Once you have entered the BIOS, you need to look for the setting. All BIOS’s are different, and sometimes this particular setting is really hard to find.
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When you have found the setting and set it to allow booting from a USB disk, save the settings and reboot. The BIOS screen usually tells you how to save and restart.
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Make sure the UBOS boot stick had been inserted already at the time you reboot.
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Then, you still might need to find yet another key to press quickly that gives you a popup dialog in which you can select which device to boot from.
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Select the device that seems to be your USB stick. It won’t be SATA (that’s a built-in disk) but BIOS manufacturers seem to like to be cryptic names, so you might have to try out a few alternatives among what it is listed.