I just updated Ubuntu and wanted to restart my Lenovo s440.
Normally, the system goes through the GRUB loader. Now the whole system is messed up. Either, I am stuck at the Lenovo screen in the beginning or it goes straight to Windows.
In the BIOS, ubuntu is the first option. The second is the Windows boot manager.
I tried setting the EFI in Windows but although it says success, there is no change in behavior.
The only way I can access GRUB and Ubuntu is the following, opening BIOS and changing something. Then saving and discarding changes. (It does not work when there was no change in the settings) This allows me to access GRUB and choose the OS. However, that does not seem like a permanent option...
My problem is a bit vague. But I hope to get back to a situation in which GRUB automatically starts when i switch on the PC, instead of freezing or going directly to Windows.
Thanks a lot.