Nokia-N900:~# apt-get dist-upgrade -f
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Failed
The following packages have unmet dependencies:
  upstart: PreDepends: sysvinit-utils (>= 2.86.ds1-23) or
                       busybox (>= 3:1.6.1.legal-1osso8) but it is not going to be installed
E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.
Nokia-N900:~#