warning appears after upgrade on PiB

[Bosse_B]

Today I did a sudo apt-get upgrade on my year-old Raspbian installation.
During the install sequence there were a number of these warnings:

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insserv: warning: script 'mathkernel' missing LSB tags and overrides

and these also come now when I try installation of other software.

What does this mean and how can it be fixed?

[rpdom]

Ignore it, or remove the package that "mathkernel" belongs to, if you don't need it.

dpkg -S /etc/init.d/mathkernel might tell you.

[DougieLawson]

What does this mean and how can it be fixed?

It means your installation of Wolfram is out of date and due to be upgraded or purged.

[Bosse_B]

What is Wolfram (well not the metal, I assume)???
I got this response:

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pi@raspbian-pi ~ $ dpkg -S /etc/init.d/mathkernel
wolfram-engine: /etc/init.d/mathkernel

[asandford]

What is Wolfram (well not the metal, I assume)???
I got this response:

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pi@raspbian-pi ~ $ dpkg -S /etc/init.d/mathkernel
wolfram-engine: /etc/init.d/mathkernel

I would suggest that if you don't know what it is, then you're not using it and removal will free up shedloads of space.

[Bosse_B]

OK,
now being a complete illiterate, how can I get rid of wolfram?
Can I use the command (googled):

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sudo apt-get remove wolfram-engine

or should it be just "wolfram" instead of "wolfram-engine"?

Is there a way to check which packages have been installed by apt-get?

[diederik]

Can I use the command (googled):

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sudo apt-get remove wolfram-engine

or should it be just "wolfram" instead of "wolfram-engine"?

That command from the code section is correct (thus wolfram-engine).

Is there a way to check which packages have been installed by apt-get?

Yes, "dpkg -l" or "aptitude search ~i"

[rpdom]

To list just packages that are currently installed:

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dpkg -l | grep "^ii"

This only displays lines that start with "ii", which means "has been requested to be Installed" and "is Installed".

[Bosse_B]

Thanks,
the command listed too many lines for the PuTTY display buffer...
Had to pipe to more to see all.
Rather a big list of software!
No sign of wolfram now that I have done the remove command!