This advice is correct, and you probably found the correct option for enabling USB keyboard support in DBAN.
The DBAN 1.0.x releases requires that USB keyboards remain in legacy compatibility mode. If the change won't stick until the DBAN blue screen starts, then start DBAN at the black...
The computer is crashing and rebooting into Microsoft Windows. This is usually caused by bad memory.
Download the Memtest86+ utility and run it on this computer. DBAN will not run reliably if the memory diagnostic reports any bad lines.
If you are asking these questions, then you should physically destroy the hard disk.
Most modern hard disks use logical 512 byte sectors, but do not assume any behavior that happens beneath the drive firmware.
First, ensure that you have applied the patches from the DBAN source tarball.
Second, use the uclibc instead of glibc. Running DBAN in a glibc environment is untested and unsupported. It follows that you must use the obsolete gcc wrappers.
Third, the rc and dwipe in dban-1.0.6 are...
Neither, because any part of a random file is also random.
If you are splitting a large random file into smaller 512 byte seeds, then remember to use the `dd skip=` option or all of the seeds will be identical.