Thanks for the prompt answer. I need to point out a few things: -I didn't choose anything regarding UEFI before. This is all the installer. -The text, at least for the Spanish translation, says different: something more about "if you choose UEFI boy you might have trouble booting other OSes". After that, the options are to continue with UEFI por to go back. But I never get to choose "do this in bios mode now". - I don't want to erase everything because my home partition has my files and I wanted to keep them. Apparently the only way I can do that is by doing manual partitioning.
I'm now trying to reinstall taking this advice into account. Adriano Varoli Piazza El 15 may. 2017 13:50, "Phillip Susi" <ps...@ubuntu.com> escribió: Your disk is currently partitioned to boot in bios mode, but you booted the installer in EFI mode. A warning message prompted you that this could be a problem and recommended performing a bios mode install instead, but you chose not to. You either need to perform the bios mode install, or partition the disk using GPT and set up an EFI system partition to install in EFI mode. This will be done for you if you choose the "use entire disk" guided install option. ** Changed in: grub-installer (Ubuntu) Status: New => Invalid -- You received this bug notification because you are subscribed to the bug report. https://bugs.launchpad.net/bugs/1690866 Title: installer could not install grub To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub-installer/ +bug/1690866/+subscriptions -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1690866 Title: installer could not install grub To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub-installer/+bug/1690866/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs