unknown username root in message bus configuration file

Peter Clifton pcjc2 at cam.ac.uk
Fri Nov 3 05:18:19 PST 2006

On Fri, 2006-11-03 at 12:50 +0000, paul mullen wrote:
> Hi,
> I forgot my root password on Fedora and changed it via booting the
> using knoppix and mounting /dev/hda3 - changing /etc/passwd by
removing the 
> x in the second column.
> I can now log in as root but get the following errors - unknown
> "root" in message bus configuration file - unknown username "0" in
> bus configuration file. Can anyone tell me what has happened and how I
> resolve this problem?
> Many Thanks in Advance
> Paul

I'm not sure if this is the correct way to change, or disable a root
password.. There is a corresponding entry in /etc/shadow which actually
holds the password.

An easy way to reset the password properly - one I've not tried mind,
would be to boot off your knoppix cd, mount /dev/hda3 somewhere
then, as root from knoppix (via sudo or su), issue
"chroot /where/I/mounted/hda3"

You should now be the "root" user in your normal system, give or take.
You should be able to change the root password with the normal "passwd"


Peter Clifton

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