Ubuntu 12.04 --- grub-efi-amd64-signed failed to install into /target/

Solution 1:

Hey Ramji Had the exact same problem. What fixed my problem was that i went through the steps again and made sure I was connected to the Internet the second time. go through the process again (don't partition again because the hard drive is still partitioned ) but this time chose the option to format the partitions so that you erase the information that was loaded before the installation failed. look at the comments here Why 12.04 Fails to install grub-efi to /target/? if you are still having problems follow this instructions http://www.everydaylinuxuser.com/2013/09/install-ubuntu-linux-alongside-windows.html

Solution 2:

I solved the problem by creating a 200MB FAT32 partition in the beginning of the disk with the flags boot and esp. Creating a partition with this configuration was suggested by boot-repair tool after I got the error you mentioned and I tried to fix it using such tool.

I hope this helps! Good luck!

Solution 3:

It is a bug. If you are installing using a pendrive, just modify the filename grub-efi-amd64-signed_1.9~ubuntu12.04.4+1.99-21ubuntu3.10_amd.deb in directory /pool/main/g/grub2-signed/ by adding 64 at the end before .deb. It works 100%.

https://bugs.launchpad.net/ubuntu/+bug/1633913