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O/S upgrade - dpkg still shows old version for some packages


We have a virtual Debian 7 (LTS) server, and I have been running through the
upgrade process of going from 7 to 8 and then straight to Debian 9. Generally
no problems with this.

However, when using 'dpkg -p' I notice that some of the packages are showing
their old (debian 7) version numbers. I know the packages have been updated
since (typically) using a '--version' option for the command shows the later
version, and if I try and install the package dpkg says that it is already at
the latest version.
For example:
(This package was installed on Deb 7 using a specific APT sources.list file.
That file was removed prior to the upgrade to Debian 8.)

dpkg -p nodejs
Version: 0.10.37-1chl1~lucid1

nodejs -v

apt-get install nodejs
nodejs is already the newest version (4.8.2~dfsg-1).

dpkg -p memcached
Version: 1.4.13-0.2+deb7u4

memcached -V
memcached 1.4.33

I'm not completely familiar with how Debian records package versions, but I
assume that for some reason during the upgrade the relevant files were not

Can anyone advise how we may get 'dpkg -p' to show the correct (currently
installed) versions?



John Horne | Senior Operations Analyst | Technology and Information Services
University of Plymouth | Drake Circus | Plymouth | Devon | PL4 8AA | UK

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