On Saturday 25 Feb 2012 02:32:49 Pandu Poluan wrote:
> On Feb 25, 2012 9:14 AM, "Grant" <emailgrant@gmail.com> wrote:
> > >> I need to test a kernel config change on a remote system.  Is there a
> > >> safe way to do this?  The fallback thing in grub has never worked for
> > >> me.  When does that ever work?
> > > 
> > > You can press ESC in the Grub screen and it will take you to text-only
> 
> mode.
> 
> > >  There, you select an entry, press "e" and edit it.  Press ENTER when
> 
> you're
> 
> > > finished, and then press "b" to boot your modified entry.
> > > 
> > > That way, you can boot whatever kernel you want if the current one
> 
> doesn't
> 
> > > work.
> > 
> > I can't do that remotely though.  I'm probably asking for something
> > that doesn't exist.
> > 
> > - Grant
> 
> Situations like these that made me decide with great conviction to always
> deploy my servers virtualized, even if the box in question will only host a
> single VM.
> 
> Now, if I lost my intelligence for a couple of seconds and somehow ended up
> with a VM that's no longer accessible remotely, I just connect to the
> virtual console.
> 
> The flip side? Now I'm getting too daring/careless, and the uptime now
> drops below my (self-imposed) target of 99.99% :-P

What do you do when you need to upgrade the host, rather than the guest?

-- 
Regards,
Mick