Please specify the USB port type (USB 2 or 3) and the USB type (USB 2 or 3) for both the USB keyboard and the drive. Also, what is the host system chipset?
On Mon, 13 May 2019 at 15:11, Matschek <[email protected]> wrote: > Hi Grub Folks, > > I am using Grub (2.02) to boot a Debian (OpenMediaVault) installed on an > USB > stick. > This is working fine as long as a USB keyboard is connected. Sound stange, > but please read on. As soon as I try to start the machine with no other USB > devices (only the USB key) connected Grub fails after reading the config > file and before starting the OS loader: > > ----- > Error: failure reading sector 0x802 from 'hd0'. > Error: no such partition. > Error: no such partition. > Error: no such partition. > Error: no such partition. > Error: no such partition. > Press any key to continue... > Failed to boot both default and fallback entries. > Press any key to continue... > ----- > > > I edited the boot options via "e" and tried several variants but with no > luck. Grub is not able to find its own resources, even an "ls" command > fails, like all internal commands shown with [TAB]: > > ----- > grub> ls > no such partition. > ----- > > > If I reboot with connected USB keyboard, everything is fine again. Reboot > with a PS/2 keyboard - boot fails again. > If seems grub loses the USB device access somewhere in stage2 (as far as I > understand the config file is read in stage2, which is shown correctly) > > What can I do? Is there some debugging/verbose option I can set so see > what's going wrong? Any extra option I should use for grub-install in my > scenario? > > Regards, > Matthias Philipp > > > _______________________________________________ > Help-grub mailing list > [email protected] > https://lists.gnu.org/mailman/listinfo/help-grub > _______________________________________________ Help-grub mailing list [email protected] https://lists.gnu.org/mailman/listinfo/help-grub
