Aug 10, 2018

Apt-get install error

You may get following error when you use apt-get install command.
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?
Run ps command to see which processes are using apt.
# ps aux | grep apt
root       3701  0.0  0.0   4628   772 ?        Ss   01:17   0:00 /bin/sh /usr/lib/apt/apt.systemd.daily install
root       3705  0.0  0.0   4628  1680 ?        S    01:17   0:00 /bin/sh /usr/lib/apt/apt.systemd.daily lock_is_held install
_apt       3744  0.5  0.4  88960  8560 ?        S    01:18   0:00 /usr/lib/apt/methods/http
root       3755  0.0  0.0  21536  1000 pts/0    S+   01:18   0:00 grep --color=auto apt
Kill processes
# kill -9 3701
# kill -9 3705
# kill -9 3744
Check ps
# ps aux | grep apt
root       3757  0.0  0.0  21536  1028 pts/0    S+   01:18   0:00 grep --color=auto apt
After killing processes and restart apt-get install command I could install packages.

If you have interrupted apt-get session when you install a package you may see an error.
E: dpkg was interrupted, you must manually run 'sudo dpkg --configure -a' to correct the problem.
In this case to continue setup run:
sudo dpkg --configure -a

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