Every month Arch releases a brand new live media to update their live media. I update my copy of this very important tool for rescuing unbootable systems. To troubleshoot a system that refuses to boot you have to use a live media usually in a usb flash or CD. I have long ago dropped my CD player and so use USB flash to store the ISO. First go to the download page of your favorite distro, I use arch here. Use the torrent magnet link. It's faster. It's about 650 MB download for the ISO. Go get your USB flash. Once the ISO download finishes, change directory to the tar file. You can actually right-click on the file itself and use a GNOME utility called Disks to create a bootable flash usb. Or you can do it the long way: use the dd command: #dd bs=4M if=path/to/iso/archlinux.iso of=/dev/sdX status=progress oflag=sync To find your usb's location or name use the lsblk command. This method uses all the usb space though.