.\" $NetBSD: prep,v 1.1 2007/04/15 17:09:52 uwe Exp $ . Landisk NAS appliances come preinstalled with Linux on the internal hard disk or, in case of USL-5P that has no dedicated storage, Compact Flash card. .Nx installation will erase Linux, so if you want to be able to return to using Linux, it's a good idea to make a backup of the Linux installation first. .Pp As SH\~IPL+g firmware doesn't provide a way to boot off of an external media or over network you will have to disassemble the machine to take the hard drive out and attach it to some other computer to transfer installation kernel or to perform an off-line installation directly on another machine.