I' m trying to install Arch Linux to my disk, and created USB installer with rufus. But when I tried to start from the USB, it failed with description: ERROR: '/dev/disk/by-label/ARCH_201804' device did not show up after 30 seconds... Then the bash drop into a "[rootfs ]" command line which (seemingly) ooperates fine. I 've made sure the name of the USB installer is "ARCH_201804", but the error still occured. How can I fix the problem? Please help.