Since 24.04 is really non-workable on this Lenovo thinkpad (see my other reports), and I am a curious person, I downloaded 18.04, wiped the disk completely, reinstalled W10 followed by kubuntu 18.04, and found everything to be working as expected. I did the same, yet another time, and installed 24.04. And encountered all my grouses once again. Finally I did everything for the third time, again with 18.04, and found everything to be okay.
Since the non-volatile UEFI had run full after about the third reboot with 24.04 (which it hadn't done for the last 5+ years), and it doesn't shut down properly, neither with the installation media, 2085732 nor from an installation, #2078572, I am by now pretty convinced that the underlying problem could be Ubuntu's handling of UEFI; at least on this hardware. W10 runs perfectly okay, and for some hours now 18.04, too. Especially no shutdown/reboot worries; and the grub menu shows, when the machine is set to use the hard disk as first boot device. Therefore, we should assume by now that grub does a proper job; and the major problems as encountered are problems introduced at some moment by ubuntu in the UEFI-handling. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1898022 Title: grub upgrade 18.04->20.04 loses dual-boot to W10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1898022/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
