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Upgraded my Ubuntu (with dual boot Windows) to 18.04 . After restart I got "System BootOrder not found. Initializing defaults." . Changing the BIOS bootorder to Windows as 1st works, of course, but i want my dual boot option back. I tried the same solution as an Acer user had ("I switched "secure boot"on"). But I don't get the option of "Select an UEFI file as trusted for executing" . Where can I activate those UEFI files, in the BIOS???

Joost Koopman
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1 Answers1

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If you didn't change the defaults, You are using Grub2 as your bootloader. in this case, please use this command to reconfigure your grub configs.

I assume that os-prober and efibootmgr are installed by default, so:

grub-mkconfig -o /boot/grub/grub.cfg

It will create new grub.cfg file. now reboot your system. Let me know if it solve your problem or not.

Hamid Yousefi
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  • Thanks Hamid. I'll first make a USB with ubuntu to boot, so I am able to enter a command... I'll get back to you when I tried it. – Joost Koopman Sep 04 '18 at 15:56
  • I tried Linux Mint for a change on the USB, to be able to create that new grub file: mint@mint:~$ grub-mkconfig -o /boot/grub/grub.cfg grub-mkconfig: You must run this as root mint@mint:~$ sudo grub-mkconfig -o /boot/grub/grub.cfg /usr/sbin/grub-probe: error: failed to get canonical path of `/cow'. So... is that file supposed to be in the BIOS or on the HDD... and will it go to the USB HDD when I try this? – Joost Koopman Sep 17 '18 at 17:53
  • For running grub-mkconfig for a broken grub on a system, you must first mount necessary partitions like EFI, boot partition (if it is separated) and root to the booted system (somewhere like your current /mnt). then use chroot to enter into /mnt that you mounted the broken OS. then you can simply run grub-mkconfig as a root as I shared before. – Hamid Yousefi Sep 19 '18 at 09:01
  • Finally started to study the subject of bootloaders on: https://www.rodsbooks.com/efi-bootloaders/installation.html – Joost Koopman Nov 07 '18 at 19:13
  • Nixie helped me with the mounting part... https://www.youtube.com/watch?v=8lod8sRb_6I – Joost Koopman Nov 26 '18 at 21:36
  • "system bootorder not found. Initializing defaults. Creating boot entry "Boot0018" with label "ubuntu" for file "\EFI\ubuntu\shimx64.efi" Reset System – Joost Koopman Dec 03 '18 at 20:24
  • http://adityagilra.blogspot.com/2014/11/fixing-ubuntu-boot-problems-with-boot.html – Joost Koopman Dec 06 '18 at 20:44
  • http://paste.ubuntu.com/p/9GXDmVMH3b/ – Joost Koopman Dec 06 '18 at 20:50
  • https://sourceforge.net/p/boot-repair/home/Home/ – Joost Koopman Dec 06 '18 at 20:53
  • The Boot-repair tool tells me to turn off "secure boot".... confused now... – Joost Koopman Dec 06 '18 at 21:58