problem with apropos and whatis commands

by rosika, Wednesday, November 16, 2022, 15:39 (619 days ago)

Hi all,

my main system is Linux/Lubuntu 20.04.5 LTS, 64 bit

I´m running peropesis in a virtual machine using the command

firejail kvm --cdrom /home/rosika/Peropesis-1.8-live.iso -cpu host -m 1024 -boot d

which works well.
I looked through the page https://peropesis.org/user-manual which gives some great help.

But I stumbled over one thing:

I can´t het the apropos and whatis commands to work. The manual says:

Note: To take advantage of the whatis and apropos applications available in the Peropesis system, you must first update
man database by typing the following command at a command prompt:
$ /usr/bin/mandb

Yet this doesn´t work with me. If I enter the command /usr/bin/mandb I get the following info:

Processing manual pages under /usr/man...
/usr/bin/mandb: can´t update index cache /var/cache/man/fsstnd/336: No such file or directory
/usr/bin/mandb: warning: cannot create catdir /var/cache/man/fsstnd
/usr/bin/mandb: can´t create index cache /var/cache/man/fsstnd/336: No such file or directory

Does anybody know what´s going on here?

Many thanks for your help in advance and many greetings

Rosika