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I have ubuntu installed on a USB flash drive and a grub bootloader that has automatically installed on my hard drive.

I installed grub on the /boot/efi partition on a pendrive (with grub-install /dev/sda3 command), but when I want to boot ubuntu by selecting the boot option ubuntu (USB) instead of ubuntu (SKHYNIX -...) which is my hard drive I get ubuntu failed to boot. error.

How can I run Ubuntu from USB? (So that I can run them on any computer)

Ryba
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1 Answers1

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Reinstall your Ubuntu on USB. In the installing procedures, there is a part to select which device to install bootloader.

Something like this.

This time make sure you install /boot/efi partition on your pendrive but not your hard drive.

Chuck Liu
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