John Kane wrote:

> john@john-K53U:~$  apt-get -f install
> E: Could not open lock file /var/lib/dpkg/lock - open (13: Permission
> denied)
> E: Unable to lock the administration directory (/var/lib/dpkg/), are you
> root?
> john@john-K53U:~$  apt-get -f install lyx
> E: Could not open lock file /var/lib/dpkg/lock - open (13: Permission
> denied)
> E: Unable to lock the administration directory (/var/lib/dpkg/), are you
> root?
> john@john-K53U:~$

This happens if at the same time some other package management tool is 
running and holds a lock on the database. Assuming that you don't do that 
yourself, the most likely reason is an automatic 'apt-get update' running in 
the background from cron. You would see the process in the output of

ps -axu | grep root

and usually it would not take long to be finished, so you could try again.


Georg


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