Re: Grub refuses to hide/unhide

[Franklin PIAT]

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
>