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Re: Boot problems (still)




----- Original Message -----
From: Jim Cornette <fc-cornette insight rr com>
Date: Tuesday, February 6, 2007 11:00 pm
Subject: Re: Boot problems (still)
To: For users of Fedora <fedora-list redhat com>

> zephod cfl rr com wrote:
> > I reported this problem some time ago but I still cannot boot my 
> > FC6 disk.

snip

> > 
> > Steve
> > 
> 
> The problem with rebooting without a rational cause happened to me 
> booting from a xen kernel. Are you booting from a xen enabled kernel?
> Chances are that this is not your problem but just in case it is 
> your 
> problem.
> 

The kernel that would be booted if I could get to that point is a xen 
kernel and this problem started after I installed a xen kernel but 
right now I can't even get to a GRUB menu and so there is no kernel 
involved yet.

> Regarding the no such disk problem. I had problems on two 
> different Dell 
> computers which the secondary drive was disabled in BIOS. Fedora 
> itself 
> recognized the disks but grub did not because of the BIOS setting. 
> Are 
> your BIOS settings set to show all disks?

I am thinking that the BIOS is the problem because the IDE drive does 
not show up in the primary or secondary drive list but it does show up 
in the list of bootable devices. In addition, the BIOS has it's own 
menu that allows you to pick which device you want to boot from and 
the IDE drive does show up there.

> Regarding Grub interactive. I had to use it myself today for the 
> first 
> time. It is highly cryptic but not too hard once you get through 
> the 
> vague documentation.
> 
> CAUTION: (I don't know what the heck I'm doing in the grub shell 
> yet 
> this is a question only)
> What would happen if you entered
> root (hd1,0)
> followed by
> setup (hd0)
> 
> Basically, boot is the first partition on the second hard drive 
> and grub 
> is booted from MBR.

The root(hd1,0) command fails because GRUB says there is no hd1.

> I had to do this on a computer which I moved boot from sdb2 to 
> sdb1 
> changed fstab reference and /boot/grub/grub.conf references but 
> did not 
> run grub-install before rebooting.
> 
> Why are you trying geometry?

Because geometry lists the device and the C/H/S information in its 
output so I can see that hd0 is /dev/sda and it is my 120G SATA drive 
and not my 160GB IDE drive.

Steve.

> 
> Jim
> 
> -- 
> QOTD:
> 	"If he learns from his mistakes, pretty soon he'll know 
everything."
> 
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> fedora-list redhat com
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> 


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