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Bug#586803: debian-installer: partitioner should create a "BIOS boot" partition when GPT is requested

Package: debian-installer
Severity: normal

When you use the new "GPT" partition table format, there is no gap
between the master boot record and the first partition for the boot
loader (e.g. GRUB) to install itself into.  Therefore, when GPT format
is requested, the partitioner should create a "BIOS boot partition"
by default, so that the boot loader has somewhere to go.  In directed
mode, it should just go ahead and do it; in expert mode it should perhaps
just notify the user that this partition will be needed on the boot disk.

If you don't have this partition on your boot disk, bootloader package
updates can render the system unbootable.

See http://grub.enbug.org/BIOS_Boot_Partition for further explanation.

-- System Information:
Debian Release: squeeze/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.32-5-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

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