Dear William, sorry for the long silence, but I didn't want mess with my daughter's Laptop.
I tried your suggestion: 1) Hit F2 on boot to enter setup and switch to the Security tab. 2) Set a supervisor password. 3) Choose "Select an UEFI file as trusted for executing" and select HDD0\EFI\ubuntu\shimx64.efi. 4) You can choose between Windows and Ubuntu at the F12 menu, and choose a default in setup. and it works fine. Thanks a lot for your help, all the best, merry christmas and a happy new year, Peter P.S. Note that I wanted to update to 15.04 today, but the kernel didn't boot, although it started to do so. After applying the steps 1) to 4) I could immeadiatly boot into 15.04. I'm now switching to 15.10. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1437797 Title: I can't boot ubuntu after installing it dual-boot from kubuntu 14.10 CD prallel to windows 8.1, UEFI secure boot, on an Acer Aspire E15. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/efibootmgr/+bug/1437797/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
