Bug#666992: grub-pc: installation into partition broken, postinst script does not detect MBR installation

[Norbert Preining]

Hi Colin,

thanks for the prompt answer!

On Di, 03 Apr 2012, Colin Watson wrote:
> The real error may be obtained using 'grub-install --force /dev/sda3',
> and I strongly suspect that it is along the lines of "error:
> non-sector-aligned data is found in the core file".  See:

Indeed, exactely this error.

> > * grub is not able to be installed into my /dev/sda3
> 
> That is indeed an important regression and I'm working on a fix now.

Thanks.

>From my side no hurry, as I have grub in MBR.

> > * postinst is not able to detect that grub is already installed in MBR
> [...]
> > * grub-pc/install_devices: /dev/disk/by-id/ata-WDC_WD10JPVT-00A1YT0_WD-WXK1A7154276, /dev/disk/by-id/ata-WDC_WD10JPVT-00A1YT0_WD-WXK1A7154276-part3
> 
> If you don't want to install it to /dev/sda3, then you should run 'sudo
> dpkg-reconfigure grub-pc' and select only /dev/sda.  At the moment this

Haaaa, debconf is *no* registry .... lintian warning ;-)))))

I was *searching* for a conffile that sets this, without success.

> debconf-show output indicates that you have both /dev/sda and /dev/sda3
> selected there, hence why the postinst tried to do this.

And actually, I *want* grub installed in both. In case some stupid
installer (like Windows) trashes my MBR, I only need to make part3
active, boot from it, and reinstall grub into the MBR ;-)

Best wishes

Norbert
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Norbert Preining            preining@{jaist.ac.jp, logic.at, debian.org}
JAIST, Japan                                 TeX Live & Debian Developer
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