Bug#698215: linux-image-3.2.0-4-amd64: Grub fails loading with "cannot read the linux header"

[Ben Hutchings]

On Tue, 2013-01-15 at 15:40 +0100, Christopher Huhn wrote:
> Hi,
> 
> On 15.01.2013 14:26, Ben Hutchings wrote:
> > This is Debian - we carry on supporting hardware until it's turned to
> > rust (well almost).  Anyway if GRUB is complaining then the kernel isn't
> > running yet, is it?
> 
> No, it was not.
> 
> >> Because of this, you need to make sure you're running the LATEST VERSION of
> >> GRUB before you report a bug.  Use grub-install to update it, and then check
> >> if the bug still applies.  Debugging problems we already fixed makes us waste
> >> valuable time, so please try to avoid it.
> 
> This exactly was not the case - and fixed my problem. Shame on me.
> 
> I still think it's strange that the old grub could run 3.2.0-3 but not 
> 3.2.0-4. That's why the kernel was my first suspect.
> 
> Unfortunately this means that I may have to update grub with each 
> release (or kernel?) upgrade on a couple of servers (~ 1000), 
> automatically choosing the proper boot device, which is normally handled 
> for me by FAI at install time and may be cumbersome eg. for software RAIDs.

This should be remembered by debconf (grub-pc/install_devices variable).
I'm not sure whether there's a good way to get that information outside
of a package maintainer script, though.

> Please close this bug. Sorry for the inconvenience.

Well, if this is a widespread problem then I think grub-pc must
reinstall when the package is upgraded from a version has this bug.  We
cannot have upgrades resulting in an unbootable system.

Were these systems initially installed with squeeze, or an earlier
version?

Ben.

-- 
Ben Hutchings
Quantity is no substitute for quality, but it's the only one we've got.
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