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Getting error trying to install php5-dev on Ubuntu.

I am trying to install php5-dev using the command "sudo apt-get install php5-dev"
The installation is stopping with the following errors. Request experts to help me resolve this issue:


Processing triggers for install-info ...
Processing triggers for man-db ...
debconf: DbDriver "config": /var/cache/debconf/config.dat is locked by another process: Resource temporarily unavailable
dpkg: error processing man-db (--unpack):
 subprocess installed post-installation script returned error exit status 1
No apport report written because MaxReports is reached already
                                                              Processing triggers for doc-base ...
Processing 1 added doc-base file...
Errors were encountered while processing:
 man-db
E: Sub-process /usr/bin/dpkg returned an error code (1)
0
sukhoi35
Asked:
sukhoi35
1 Solution
 
simon3270Commented:
It looks as though a previous installation is still running, or it has failed to remove a lock on one of the dpkg configuration files.  You can only run one "apt-get" process at a time, because of the underlying dpkg processes, and locks on the package control files.

You could try rebooting the machine (a bit drastic, but should solve the problem).  Otherwise, try running:
    fuser -v /var/cache/debconf/config.dat
as root to see which process is holding on to the file, and kill that process.
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sukhoi35Author Commented:
Hi Simon,
You are right, I did realize (by chance) after sometime after posting this question that a previous installation was already present. Thanks for your other suggestions which I can try if I face a similar issue in future.

Regards.
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