Hello Shinichi, On Thu, Jan 29, 2026 at 07:30:02AM +0900, Wilfred van Rooijen wrote: > I am using a no-name USB keyboard. Do I need to get an old-fashioned PS/2 > keyboard? Please note: the keyboard works in the GNU GRUB menu but does not > work in "text install (Mach console)" nor "Expert install"
That is right. There is some limited support for USB storage devices, but otherwise no USB support. I don't know much about it, but in the grub menu you will be using whatever USB support/emulation is done by the BIOS. A PS/2 device should work. Regards, João

