BSDInstall: merging to HEAD

Olivier Smedts olivier at
Thu Jan 20 22:37:29 UTC 2011

2011/1/20 Chuck Swiger <cswiger at>:
> On Jan 20, 2011, at 1:37 PM, David Demelier wrote:
> [ ... ]
>> Why does the installer use GPT partition by default? Do you know that GPT is not supported on every (even modern) computer ?
> Sure.  Legacy PC/BIOS platforms can work with a hybrid GPT which includes the legacy or "protective" MBR used by pre-EFI systems; FreeBSD 7 and later, recent Linux, MacOS X 10.4 and later should be able to boot from disks with that hybrid format.
> If you need to dual-boot into Windows, however, and your hardware doesn't provide EFI then you're likely stuck using MBR + PC/BIOS only.

I use a GPT partitioning scheme for FreeBSD and Linux, and manually
edited the protective MBR in order to declare MBR partitions on the
same sectors than the GPT partition I wanted to use for Windows.
Working really nice. There are tools like gptsync which are simpler to
use than a low-level MBR editor.


Olivier Smedts                                                 _
                                        ASCII ribbon campaign ( )
e-mail: olivier at        - against HTML email & vCards  X
www:    - against proprietary attachments / \

  "Il y a seulement 10 sortes de gens dans le monde :
  ceux qui comprennent le binaire,
  et ceux qui ne le comprennent pas."

More information about the freebsd-current mailing list