Re: [PLUG] drives not properly named after switch

[Art Alexion <art.alexion@verizon.net>]

sean finney wrote:

> hi chris,
>
> On Thu, Oct 20, 2005 at 08:18:07PM -0400, Christopher M. Jones wrote:
>  
>
> > When I made the switch, I changed /boot/grub/menu.lst to reflect the new
> > drive configuration. But when I later recompiled my kernel and installed
> > it, grub rewrote the menu to the previous configuration, looking for
> > kernels etc. on /dev/hdb1. I also noticed just a while a go that df -ah
> >    
>
> this is a frequent point of confusion with debian based grub.  if you
> take a look at your menu.lst file, you'll see a section of
> commented out options above the list of of boot images.  these are used
> to set default options for the automatically generated list of boot
> settings below.  _without uncommenting them_, there's probably an option
> you should change to reference hda instead of hdb now.
>  

Right, you should have a section that looks something like this:

## ## Start Default Options ##
## default kernel options
## default kernel options for automagic boot options
## If you want special options for specifiv kernels use kopt_x_y_z
## where x.y.z is kernel version. Minor versions can be omitted.
## e.g. kopt=root=/dev/hda1 ro
# kopt=root=/dev/hda2 ro

## default grub root device
## e.g. groot=(hd0,0)
# groot=(hd0,1)

You want to edit the lines with the single comment (#).  The update-grub 
script that is run with a new kernel install will make the changes to 
grub based on those lines and overwrite your manual edits to the 
uncommented part of menu.lst.  Just change the Default Options and run 
update-grub.




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