-I can access to usb in boot menu
(tested in a usb with guadalinex v9. I can use in live mode)
-I can change options in bios and save correctly
(tested with sound beeper option. Changing "disabled" to "enabled", save changes and exit)
One last thing, I don't update system bios, i use the default bios
Lenovo 100-15iby with Kubuntu 17.10
No errors
-I can access to usb in boot menu
(tested in a usb with guadalinex v9. I can use in live mode)
-I can change options in bios and save correctly
(tested with sound beeper option. Changing "disabled" to "enabled", save changes and exit)
One last thing, I don't update system bios, i use the default bios