Hi!
I use ROCK pi4A+ with Fedora36 (this image Fedora 36 Rockpi 4b ) installed both on eMMC and on NVMe. So I have dual boot from partition 5 of eMMC (mounted as /boot) and grub2 opens a menu for me to select the instance. But keyboard is not working at this moment. Tested 2 ordinary USB keyboard: they are responsive afterwards, but they dislike grub2 menu.
Added in /etc/default/grub lines:
GRUB_PRELOAD_MODULES=“usb usb_keyboard ehci ohci uhci”
GRUB_TERMINAL_INPUT=“usb_keyboard”
but on boot just before the menu appears, I get error messages:
error: …/…/grub-core/fs/fshelp.c:257:file /grub2/arm64-efi/usb.mod' not found. error: ../../grub-core/fs/fshelp.c:257:file /grub2/arm64-efi/usb_keyboard.mod’ not found.
error: …/…/grub-core/fs/fshelp.c:257:file /grub2/arm64-efi/ehci.mod' not found. error: ../../grub-core/fs/fshelp.c:257:file /grub2/arm64-efi/ohci.mod’ not found.
error: …/…/grub-core/fs/fshelp.c:257:file /grub2/arm64-efi/uhci.mod' not found. error: ../../grub-core/commands/terminal.c:138:terminal usb_keyboard’ isn’t found.
It seems grub2 cannot find the appropriate drivers.
Where can I find them and where should I copy the .mod files for grub2 to find them?
