Re: Grub refuses to hide/unhide

[Simon Detheridge]

Thanks, I'm still using grub 1.

As you can see from my example below, the numbering is correct. For  
example, I can say: "root (hd0,0)" from a prompt, and it says there's  
a partition there and tells me the type (0x07 or 0x17 depending on  
what I set in fdisk) -- It's just that then when I say "hide (hd0,0)"  
it fails.

That's the puzzling thing. "hide" says "no such partition", where  
"root" can clearly see one.

Quoting Franklin PIAT <address@hidden>:

> Hello,
>
> What version of grub do you use ?
>
> In case you switched to grub2, note that the partition numbering has
> changed (to match linux numbering) :
> ? +-----------+---------+---------+
>  | linux*    | grub1   | grub2   |
>  +-----------+---------+---------+
> ? | /dev/sda1 ?| (hd0,0) ?| (hd0,1) |
> ? | /dev/sda2 ?| (hd0,1) ?| (hd0,2) |
> ? +-----------+---------+---------+
>
> Franklin
>
> *) YMMV : It could be /dev/hda*
>
> On Tue, 2008-04-01 at 20:40 +0100, Simon Detheridge wrote:
> > I have a multi-boot system and Grub has started acting up. I haven't
> > touched my grub installation since it was last working. I did an
> > 'emerge -uD world' from Gentoo, but I wouldn't have thought it
> > installs a new grub loader without asking me first.
> >
> > Anyway. The problem is that on my first drive, I have 4 partitions. 3
> > NTFS ones, and an ext2 partition for /boot. When I boot some flavour
> > of Windows, it hides two of the NTFS partitions, and unhides a third.
> > Everything was working fine until yesterday, but now it refuses to
> > hide/unhide the partitions.
> >
> > It says:
> >
> >    hide (hd0,0)
> >    22: No such partition
> >
> > BUT - if I drop to a console, I can see the partitions. But if I try
> > and hide/unhide from there, it still complains. Example:
> >
> >    > root (hd0,0)
> >    Partition type: 0x17
> >    > unhide (hd0,0)
> >    22: No such partition
> >    > root (hd0,2)
> >    Partition type: 0x07
> >    > hide (hd0,2)
> >    22: No such partition
> >
> > Note: The above output isn't exact. I'm remembering it from what
> > happened, but you get the idea.
> >
> > If I boot back into Gentoo, and set the partition types
> > (hidden/unhidden) manually using fdisk and then reboot, then edit the
> > grub commands at the grub prompt to remove all the hide/unhides, it
> > works, and I can boot my OS.
> >
> > Any ideas?
> >
> > Thanks,
> > Simon
>
>
>
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