grub-efi-amd64-signed problems

[I Heart Engineering]

Trying to build an ISO image with UCK 2.4.7-0ubuntu1 and Ubuntu
12.04.2 and having some issues installing grub-efi-amd64-signed

Failure occurs in Ubiquity GUI installer.
Any ideas how to debug this?

[Launchpad Janitor (janitor)]

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

[nec0r0bra (nec0r0bra)]

I have the same problem..

[Yuan Chao (yuanchao)]

The same problem on 12.04.4 with macbook air 6,2.

[Saravanan S PAJANCOA (saravanan.s)]

Same situation in UCK 2.4.7 customized Ubuntu 14.04.1

Ubuntu 14.04.1 installs without crashing both in legacy+msdos mode & uefi+gpt mode

UCK 2.4.7 Customized Ubuntu 14.04.1 (SS Ubuntu 14.04.1) installs well in legacy+msdos mode, but
while installing in uefi+gpt mode, installer crashes while installing package grub2

More details in
https://sites.google.com/site/unityindiversity99/

[Launchpad Janitor (janitor)]

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