[CentOS] Grub boot loader?

[hadi motamedi]

On Mon, Feb 1, 2010 at 9:11 AM, James Hogarth <james.hogarth at gmail.com>wrote:

>  On 1 February 2010 08:33, hadi motamedi <motamedi24 at gmail.com> wrote:
> >
> >
> > On Mon, Feb 1, 2010 at 8:24 AM, MHR <mhullrich at gmail.com> wrote:
> >>
> >> On Mon, Feb 1, 2010 at 12:04 AM, hadi motamedi <motamedi24 at gmail.com>
> >> wrote:
> >> > Dear All
> >> > On my CentOS server , the '/boot/grub/menu.lst' has the right
> >> > configuration
> >> > but when I reboot my CentOS server I cannot enter to grub edit menu to
> >> > edit
> >> > my boot kernel by pressing the 'e' key . Can you please confirm if I
> can
> >> > activate it through issuing the followings :
> >> > #grub-install /dev/hdax
> >> > Is it a safe procedure to try with? Please confirm.
> >> > Thank you
> >> >
> >>
> >> Are you starting with a <space> to interrupt the boot?
> >>
> >> Have you tried editing it using a normal editor (vi or emacs) as root
> >> while the system is up?
> >>
> >> What exactly are you trying to do?
> >>
> >> mhr
> >> _______________________________________________
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> >
> >
> > Thanks for your message . When I reboot my CentOS server I see the the
> menu
> > with a timer but I cannot enter to edit my boot kernel by pressing 'e'
> key .
> > Then the timer will expire and the boot process will begin . I want to be
> > able to edit my kernel through grub edit so I asked if I can try for
> > 'grub-install /dev/hdax' w/o any harm on my CentOS server . Do you mean I
> > can edit my '/boot/grub/menu.lst' by vi the same as I want to do inside
> my
> > grub edit ? Are they the same procedures ? Please confirm.
> >
> > _______________________________________________
> > CentOS mailing list
> > CentOS at centos.org
> > http://lists.centos.org/mailman/listinfo/centos
> >
> >
>
> When grub runs it will read /boot/grub/menu.lst to determine it's
> configuration. There is no need to run grub-install for a change to
> configuration as that just installs the stage 1 boot loader code in
> the MBR or partition. ALSO SO FAR AS I recakk (migth be wrong) any
> edits done to the configuration via 'e' from the grub menu (which
> sounds like what you want to do) are non-persistent and it's more for
> debugging and//or booting with a broken configuration... If you can
> get into the system itself edit /boot/grub/menu.lst ....
>
> Phew... thankfully we don't have grub2 in centos yet and issues
> surrounding module loading and the /etc/grub.d architecture ;)
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>


With many thanks for your confirmation .
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