Re: Grub vs LILO

[Oki DZ <okidz@telkom.net>]

Romain Lerallut wrote:

> Brian May wrote:
>
> > > > > > > "Romain" == Romain Lerallut <lerallut@eleves.enpc.fr> writes:
> >     Romain> I use grub, including scsi emulation for my CDR burner,
> >     Romain> and I had no problem installing, none at all :-)
> >
> >     Romain> However I'd like to know how to pass arguments to the
> >     Romain> kernel when I boot: For instance, how do I start in
> >     Romain> single-user mode ?  Do I have to predefine such things in
> >     Romain> menu.lst, or is there another way ?  One that would not
> >     Romain> clutter the nice menu.
> >
> > In my grub I have:
> >
> > kernel (hd0,0)/boot/vmlinuz-2.2.18 root=/dev/hda1 video=0x319
>
> But you can't modify those options before you actually log in, can you ?
>
> I seem to remember that lilo allowed you to specify new options by using
> the command line when booting.
>
> What I mean is "interact at boot time":
> http://www.linuxdoc.org/HOWTO/mini/LILO-2.html#ss2.3
>
> not just choosing from a pre-defined set of operating modes of a given
> kernel.
>
> Romain

Yes you can. Suppose you boot your machine using a floppy (which has 
grub installed so that you'd get the menu), just press "c" when the menu 
waits to be selected. You'd have the grub's prompt, and then you could 
type something like:
root (hd0,0)
kernel /a-test-kernel root=/dev/your-root-partition single
boot

Another situation: you already have your system running and then want to 
have a newly compiled kernel to be booted:
run grub
do the same thing as the above

Oki