EFI Fallback error when booting from USB on Macintosh

[dougphy]

When booting to EFI USB on a 2013 Macbook Air6,2, a quick message flashes which says:

Could not open "\EFI\BOOT\fallback.efi"

This is with the 13.10 final release desktop-amd64 iso image.

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

To change the source package that this bug is filed about visit https://bugs.launchpad.net/ubuntu/+bug/1241824/+editstatus and add the package name in the text box next to the word Package.

[This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.]

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Alumni (les-sion)]

The same happens on a Lenovo U310.

[Patrick Verner (exodusrobot)]

I figured out how to get around this "error". Copy grubx64.efi and past it as fallback.efi

Tested on my Windows 8 laptop. Works perfect with absolutely no errors shown on the screen.

[Juan Rada-Vilela (jcrada)]

Confirmed fix by Verner (comment #4) in Macbook 4,1.

[Mateusz Chodkowski (chotkos)]

the same problem on my lenovo b570, Windows8, i just also copied grubx64 as fallback but i just got black screen...

[Mateusz Chodkowski (chotkos)]

Up: black screen for some time but it really works ;) Verner thank you!

[artscorestudio (f-info-k)]

Hi,

I have the same problem for the installation of Ubuntu 13.10 on Asus UX31A with usb key.
What can I do ? I don't know what is grubx64.efi.

Thanks

[Gustav Steiner (gsteiner1992)]

I have the same problem to! Where can I find grubx64.efi file and where I have to replace?

[creathor (easynet2)]

I have the same problem - Lenovo G500C i3-3110M Radeon HD8570M. When issue will be resolved ?

[static465 (static465)]

Succesfully tested on mac mini 2013

Secure boot:

copy /EFI/ubuntu/shimx64.efi to /EFI/BOOT/fallback.efi
copy /EFI/ubuntu/grubx64.efi to /EFI/BOOT/grubx64.efi

Nonsecure boot:
copy /EFI/ubuntu/grubx64.efi to /EFI/BOOT/fallback.efi

[Elijah Lynn (elijah-lynn)]

Thanks Static, that helped a bunch on a 2010 Macbook Pro!

[penalvch (penalvch)]

dougphy, thank you for reporting this bug to Ubuntu. Saucy reached EOL on July 17, 2014.
See this document for currently supported Ubuntu releases: https://wiki.ubuntu.com/Releases

Is this an issue in a supported release? If so, could you please execute the following command, as it will automatically gather debugging information, in a terminal:
apport-collect 1241824

[Launchpad Janitor (janitor)]

[Expired for Ubuntu because there has been no activity for 60 days.]