Translations:Install Gentoo on a bootable USB stick/38/en


 * will use the label of the disk instead of which is important because these device numbers move around depending on the number of hard disks in the computer or number of USB disk drives.
 * Also important for USB booting is the  option, as USB devices need a little time to be detected by the kernel; that is what this option is for. When there are lots of modules booting takes a long time so it probably does not matter, but if there are only a few modules loaded then it is important, because the system could have booted before the kernel detects the USB device. Also, on newer machines with USB3 controllers it is necessary to add the   driver (built into the kernel or as a module).