Re: [Gptfdisk-general] Bug#637572: gdisk: fails to write protective MBR

[Arno S. <ael...@ho...>]

(replying to myself because I seem to have lost your message, apologies
Rob)

Arno Schuring (ael...@ho... on 2011-08-16 00:55 +0200):
> Hi,
> 
> 
> I've taken a (cursory) look at the diffs, version 0.7's MBR is always
> all-zeroes. I did get to try these disks on i386 as well, and there it
> works fine, so it's not disk-related. I guess it's either an
> architecture-specific bug or a compiler gotcha.

I've been unable to reproduce this. The local compile on the arm box
produces a correctly functioning executable, so I've not yet been
playing with compile-time options and such.

My (very basic) approach has been:
# apt-get build-dep gdisk/testing
$ apt-get source gdisk/testing
$ cd gdisk-0.7.2
$ dh_auto_build
# ./gdisk /dev/sda

This is with gcc version 4.4.5 (Debian 4.4.5-8) on an up-to-date
Squeeze install. Gdisk is from testing, and from the QA logs I can see
that the package is built with gcc 4.6.

Upgrading to 4.6 on this box is not possible (it requires me to upgrade
libc6), I'll pursue this once I have a working cross-compiler or
chroot. Pointers welcome :)


To be continued,
Arno