Create a bootable Linux USB from macOS Plug the USB drive into your Mac system and open the Terminal app (just search for Terminal in Spotlight).

Run Ubuntu Live Step 1: Make sure that your computer's BIOS is set to boot from USB devices then insert the USB flash drive into a USB 2.0 port. Turn your computer on and watch it boot to the ...

Perhaps they referenced this guide to create a bootable Live USB on Windows, allowing them to test drive something like Ubuntu without making any changes to their PC.

To boot to Ubuntu instead of your primary operating system, modify the startup operation on your PC so that the USB drive loads first. Restart the PC and then follow the on-screen instructions on ...

Boot into Puppy Linux: Insert the bootable USB drive and reboot your computer, ensuring it boots from the USB drive. Navigate to the Installer: In the main menu, go to Setup > Puppy Universal ...

Our goal is to create a bootable USB stick containing our chosen Linux OS. A minimum capacity of 8GB is recommended for your USB drive.

The machine boot just fine, but then when I looked at /boot/efi I discovered the Ubuntu installer had put the bootloader on my internal system drive!

If you want to boot into a live Linux environment but don't have a blank CD or thumb drive handy, you can actually boot right from your hard drive using GRUB and previously mentioned Unetbootin.