Bug#724756: grub-pc: Latest version of grub produces a core.img that is too large to install.

[Michael Lustfield]

On Tue, Dec 10, 2013 at 1:09 PM, Colin Watson <cjwatson at debian.org> wrote:

> On Tue, Dec 10, 2013 at 12:45:41PM -0600, Michael Lustfield wrote:
> > On Tue, Nov 12, 2013 at 8:47 PM, Colin Watson <cjwatson at debian.org>
> wrote:
> > > Note that systems that were installed with modern versions of the
> Debian
> > > installer aren't affected by this bug, since that aligns the first
> > > partition to a 1MB boundary by default; this is actually a good idea
> for
> > > performance reasons too so I recommend you look into converting your
> > > systems to that if at all possible since this isn't an easy bug to fix
> > > in any other way.
> >
> > How can I convert an installed system to that? This image was created
> with
> > a recent (at the time) Debian installer. Right now, I have to use a super
> > grub2 boot disk to boot the servers.
>
> You have to use something like gparted from a live CD to move the
> partitions around.  This is inherently risky and requires taking backups
> first, unfortunately.
>
> > > I agree this is a real problem, though.  Could I please see the exact
> > > size in bytes of /boot/grub/i386-pc/core.img so that I can make sure
> I'm
> > > comparing the right thing?  I don't get quite the same figures as you
> in
> > > my local tests, and for this kind of thing every byte matters.
> >
> > # du /boot/grub/i386-pc/core.img
> > 34    /boot/grub/i386-pc/core.img
>
> That's kilobytes, not bytes.  Try this instead:
>
>   ls -l /boot/grub/i386-pc/core.img


Sorry, I forgot to reply to the bug too.

It's 33106 bytes.
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