ubuntu

Although the printer HP Deskjet F2430 was automatically detected upon usb connection to my ubuntu-9.10 desktop, the 3.9.8 version of hplip that came via apt repository did not quite get printing to work.

I headed off to hplipopensource.com, downloaded and installed the latest driver (version 3.9.12 as of this writing) and got the all-in-one printer to work just following the install wizard.

I have yet to test the scanner... but that's going to be another update.

If you apt-get install sysstat, and sar returns:

Sar needs to be enabled before it can be used. The error message in this case is completely useless, and the solution I have found is as below:

Enable sysstat data collection by doing

or manually by changing value of ENABLED from "false" to "true" in "/etc/default/sysstat".

Then start sysstat via:

Check "/var/log/sysstat/" for the missing file.

Run sar after about 10 minutes to see the collected data.

APT-GET

• Clean up non-existent data
  
  # apt-get autoclean

• Update list
  
  # apt-get update

• Install/update a package
  
  # apt-get install <pkg>

• review dist-upgrade prior:
  
  # apt-get -Vsu -o Debug::pkgProblemResolver=yes dist-upgrade

• Apply updates
  
  # apt-get -Vu upgrade

• Upgrade all dependencies
  
  # apt-get -Vu dist-upgrade

• Search cache
  
  # apt-cache search <pkg>

• Remove and purge packages
  
  # apt-get --purge remove <pkg>

DPKG

• Install/Update package
  
  # dpkg -i <pgk>

• Check listing of installed packages
  
  # dpkg -l *<pkg>*

• file belongs to
  
  # dpkg --search /path/to/file

• List of file in package
  
  #dpkg -L <pkg>

• Info about package
  
  # dpkg -s <pkg>

SERVICES

• Manage services at init levels.
  
  # sysv-rc-conf
# update-rc.d