I am installing Ubuntu 16.04 in an Intel NUC computer with UEFI enabled. I am using an SSD from another computer. During the installation I chose Erase the disk and make a new full install
At the end of the process I see:
grub-efi-amd64-signed failed installation /target/ Ubuntu 16.04
And the system does not boot.
I tried to use boot-repair but apparently it does not solve the problem.
Best Answer
I had exactly the same issue installing 16.04 64 desktop on a new SSD with UEFI enabled using USB install media. Unlike in the question I chose to create my own partitions as I had other disks to mount. I hit this error near the beginning of the package installation.
After a bit of googling I found this page:
https://help.ubuntu.com/community/UEFI#General_principles
which states in the
General principles
section:and points to:
https://help.ubuntu.com/community/UEFI#Creating_an_EFI_System_Partition
Which states:
So I reinstalled and when I came to partition my drive, I chose the EFI option from the list that includes filesystems and swap etc and made it 200MB at the start of the disk. I did not get the option to select the filesystem or set the bootable flag.
After this the rest of the install went fine.
This is how the partitions on this disk look after the install:
The same information can be seen by running
parted
:Note that the partition that was created is an EFI System Partition (ESP) and the disk has a GUID Partition Table (GPT) rather than an MBR partition table.
If you look in
/boot/efi
or/sys/firmware/efi/
on this disk you should find them populated, likewise runningsudo efibootmgr
should provide real output, see the link below if you want more information.More Information
If you wish to know more about how UEFI works then the post UEFI boot: how does that actually work, then? by Adam Williamson is highly recommended.
He describes the situation that causes this error in the article (note that he is a Fedora user but the same applies for Ubuntu):