Could not get lock /var/lib/dpkg/lock – open (11 Resource temporarily unavailable) error on Debian (or Ubuntu)

Could not get lock /var/lib/dpkg/lock – open (11 Resource temporarily unavailable) error on Debian (or Ubuntu)

March 30, 2009 — adhy0687

E: Could not get lock /var/lib/dpkg/lock – open (11 Resource temporarily unavailable)
E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it?

Step1

sudo rm /var/lib/dpkg/lock

Step2

killall aptitude && killall apt-get

Step3

killall dpkg && killall frontend

Step4

dpkg --configure -a