Same issue here :


aptitude safe-upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
Reading extended state information
Initializing package states... Done
The following packages have been kept back:
  initscripts upstart
0 packages upgraded, 0 newly installed, 0 to remove and 2 not upgraded.
Need to get 0B of archives. After unpacking 0B will be used.
Writing extended state information... Done
Reading package lists... Done
Building dependency tree
Reading state information... Done
Reading extended state information
Initializing package states... Done



 aptitude install initscripts
Reading package lists... Done
Building dependency tree
Reading state information... Done
Reading extended state information
Initializing package states... Done
The following packages are BROKEN:
  initscripts upstart
2 packages upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Need to get 615kB of archives. After unpacking 16.4kB will be used.
The following packages have unmet dependencies:
  upstart: PreDepends: mountall which is a virtual package.
  initscripts: Breaks: rsyslog (< 4.2.0-2ubuntu3~boot1) but 4.2.0-2ubuntu2 is installed.
               Breaks: udev (< 146-2~boot6) but 146-1 is installed.
open: 2; closed: 61; defer: 88; conflict: 24                                                                                                                    oUnable to resolve dependencies!  Giving up...
The following packages are BROKEN:
  initscripts upstart
2 packages upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Need to get 615kB of archives. After unpacking 16.4kB will be used.
aptitude failed to find a solution to these dependencies.  You can solve them yourself by hand or type 'n' to quit.
The following packages have unmet dependencies:
  upstart: PreDepends: mountall which is a virtual package.
  initscripts: Breaks: rsyslog (< 4.2.0-2ubuntu3~boot1) but 4.2.0-2ubuntu2 is installed.
               Breaks: udev (< 146-2~boot6) but 146-1 is installed.
Resolve these dependencies by hand? [N/+/-/_/:/?]



aptitude install upstart
Reading package lists... Done
Building dependency tree
Reading state information... Done
Reading extended state information
Initializing package states... Done
The following packages are BROKEN:
  upstart
1 packages upgraded, 0 newly installed, 0 to remove and 1 not upgraded.
Need to get 542kB of archives. After unpacking 111kB will be used.
The following packages have unmet dependencies:
  upstart: PreDepends: mountall which is a virtual package.
Unable to resolve dependencies!  Giving up...
The following packages are BROKEN:
  upstart
1 packages upgraded, 0 newly installed, 0 to remove and 1 not upgraded.
Need to get 542kB of archives. After unpacking 111kB will be used.
aptitude failed to find a solution to these dependencies.  You can solve them yourself by hand or type 'n' to quit.
The following packages have unmet dependencies:
  upstart: PreDepends: mountall which is a virtual package.
Resolve these dependencies by hand? [N/+/-/_/:/?]


And don't know if it's related to these errors , but after reboot , on X launching , HAL don't detect my USB Keyboard (even forcing manually in Xorg.conf) , so wait for my password I can't type...