When I am entering GRUB bash-like console mode and entering commands ls
ls -lh
to show available partitions there is no output.
Following similar question @ Unix&Linux Stack, I already turned off the Secure Boot using shim-sgined reboot (MOK managment) - while booting there is a notification that boot is insecure but it didn't fix the problem.
Any suggestions?
PS: I am using Ubuntu 18.04 (x64) on Acer Switch 11