I use ubuntu 10.04.

I install upstart with failed dependencies.

 sam@sam-desktop:~$ sudo apt-get install upstart

 Reading package lists... Done

 Building dependency tree       

 Reading state information... Done

 Some packages could not be installed. This may mean that you have

 requested an impossible situation or if you are using the unstable

 distribution that some required packages have not yet been created

 or been moved out of Incoming.

 The following information may help to resolve the situation:



 The following packages have unmet dependencies:

   upstart: Depends: libnih-dbus1 (>= 1.0.0) but it is not going to be installed

            Depends: libnih1 (>= 1.0.0) but it is not going to be installed

            Depends: mountall but it is not going to be installed

 E: Broken packages

 sam@sam-desktop:~$

My sources.list:

 deb cdrom:[Ubuntu 10.04.3 LTS _Lucid Lynx_ - Release i386 (20110720.1)]/ lucid      main restricted

 # See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to

 # newer versions of the distribution.



 deb http://tw.archive.ubuntu.com/ubuntu/ lucid main restricted

 deb-src http://tw.archive.ubuntu.com/ubuntu/ lucid main restricted



 ## Major bug fix updates produced after the final release of the

 ## distribution.

 deb http://tw.archive.ubuntu.com/ubuntu/ lucid-updates main restricted

 deb-src http://tw.archive.ubuntu.com/ubuntu/ lucid-updates main restricted



 ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu

 ## team. Also, please note that software in universe WILL NOT receive any

 ## review or updates from the Ubuntu security team.

 deb http://tw.archive.ubuntu.com/ubuntu/ lucid universe

 deb-src http://tw.archive.ubuntu.com/ubuntu/ lucid universe

 deb http://tw.archive.ubuntu.com/ubuntu/ lucid-updates universe

 deb-src http://tw.archive.ubuntu.com/ubuntu/ lucid-updates universe



 ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu 

 ## team, and may not be under a free licence. Please satisfy yourself as to 

 ## your rights to use the software. Also, please note that software in 

 ## multiverse WILL NOT receive any review or updates from the Ubuntu

 ## security team.

 deb http://tw.archive.ubuntu.com/ubuntu/ lucid multiverse

 deb-src http://tw.archive.ubuntu.com/ubuntu/ lucid multiverse

 deb http://tw.archive.ubuntu.com/ubuntu/ lucid-updates multiverse

 deb-src http://tw.archive.ubuntu.com/ubuntu/ lucid-updates multiverse



 ## Uncomment the following two lines to add software from the 'backports'

 ## repository.

 ## N.B. software from this repository may not have been tested as

 ## extensively as that contained in the main release, although it includes

 ## newer versions of some applications which may provide useful features.

 ## Also, please note that software in backports WILL NOT receive any review

 ## or updates from the Ubuntu security team.

 # deb http://tw.archive.ubuntu.com/ubuntu/ lucid-backports main restricted      universe multiverse

 # deb-src http://tw.archive.ubuntu.com/ubuntu/ lucid-backports main restricted      universe multiverse



 ## Uncomment the following two lines to add software from Canonical's

 ## 'partner' repository.

 ## This software is not part of Ubuntu, but is offered by Canonical and the

 ## respective vendors as a service to Ubuntu users.

 # deb http://archive.canonical.com/ubuntu lucid partner

 # deb-src http://archive.canonical.com/ubuntu lucid partner



 deb http://security.ubuntu.com/ubuntu lucid-security main restricted

 deb-src http://security.ubuntu.com/ubuntu lucid-security main restricted

 deb http://security.ubuntu.com/ubuntu lucid-security universe

 deb-src http://security.ubuntu.com/ubuntu lucid-security universe

 deb http://security.ubuntu.com/ubuntu lucid-security multiverse

 deb-src http://security.ubuntu.com/ubuntu lucid-security multiverse



 deb http://archive.ubuntu.com/ubuntu/ maverick-updates main universe      restricted

 deb-src http://archive.ubuntu.com/ubuntu/ maverick-updates main universe      restricted



 deb http://security.ubuntu.com/ubuntu maverick-security main restricted

 deb-src http://security.ubuntu.com/ubuntu maverick-security main restricted

 deb http://security.ubuntu.com/ubuntu maverick-security universe

 deb-src http://security.ubuntu.com/ubuntu maverick-security universe

 deb http://security.ubuntu.com/ubuntu maverick-security multiverse

 deb-src http://security.ubuntu.com/ubuntu maverick-security multiverse

How do I solve it?