Bug#747045: base-installer: Install hangs when attempting to format EFI system partition

[Mike <mgreger@cinci.rr.com>]

Package: base-installer
Severity: important

Dear Maintainer,

When installing on an EFI based computer, the installation will hang while
attempting to format an EFI system partition. If the partition already exists
and is already formatted, the install proceeds normally.

I have seen this behavior on two EFI based systems with very different hardware
(A desktop PC and a Macbook).



-- System Information:
Debian Release: jessie/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 3.13-1-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_US.utf8, LC_CTYPE=en_US.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash