getting rootshell without logging in

Marius Gedminas marius at
Sat Nov 3 17:45:58 UTC 2007

On Sat, Nov 03, 2007 at 06:38:11PM +0100, Jan Torben Heuer wrote:
> A friend of mine had some hardware problems so we tried to boot grub with
> acpi=off manually.
> I don't remember exactly WHAT he did and in which order, but he ended up
> with a rootshell without logging in (no x, no networking, looked like
> initlevel=S)
> Does anyone know what could be happened? Andif it is a bug or feature(tm) ?

This is a feature.  The simplest way to get it is to choose the 'Ubuntu
... (recovery mode)' option in the boot menu.  The low-level way of
doing that is adding 'single' to the kernel command line.

Marius Gedminas
"Linux was made by foreign terrorists to take money from true US companies
like Microsoft." -Some AOL'er.
"To this end we dedicate ourselves..." -Don
(From the sig of "Don" <don at>)
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