update ubuntu package problem (10.04.2 LTS)

[Peng Yu]

On Tue, May 10, 2011 at 1:40 PM, NoOp <glgxg at sbcglobal.net> wrote:
> On 05/10/2011 08:44 AM, Peng Yu wrote:
>> On Mon, May 9, 2011 at 6:27 PM, NoOp <glgxg at sbcglobal.net> wrote:
>>> On 05/09/2011 12:12 PM, Peng Yu wrote:
>>>> Hi,
>>>>
>>>> I try to update my ubuntu. But I got the following error. Could you
>>>> please let me know what the problem is and how to fix it?
>>>>
>>>
>>> Have you tried:
>>>
>>> $ sudo dpkg --configure -a
>>> and
>>> $ sudo apt-get install -f
>>> yet?
>>
>> Here are the screen output.
>>
>> $ sudo dpkg --configure -a
>> Setting up dbus (1.2.16-2ubuntu4.2) ...
>> The system user `messagebus' already exists. Exiting.
>> chown: invalid group: `root:messagebus'
>> dpkg: error processing dbus (--configure):
>>  subprocess installed post-installation script returned error exit status 1
> ...
> In the future, when you have lengthy output to post, please post at
> http://paste.ubuntu.com and then provide a link to the pastebin: example:
> http://paste.ubuntu.com/605802/

Sure.

> What is the result of the following:
>
> $ groups root
> $ groups messagebus
> $ cat /etc/group
> (only the root and messagebus output please or the entire on pastebin)

See below.

$ groups root
root : root
$ groups messagebus
messagebus : mlocate
$ grep root /etc/group
root:x:0:
$ grep messagebus /etc/group




-- 
Regards,
Peng