After the previous failed update, I ran the install -f command again
(this time with a much more useful response and an invite to do a
upgrade, which I accepted).
After that completed, I again ran the update and it at last succeeded!
Unless there is any useful new info in this error dialogue,
Thank you for the response. I have tried both actions recommended:
clean and install-f and ran the update again. The result was no
different, with the completion message Package operation failed.
Please advise how to safely run fsck.
Is the only real solution a complete clean re-install of
Thank you for taking the time to report this bug and helping to make
Ubuntu better. It seems that there was an error on your system when
trying to install a particular package. Please execute the following
command, as it will clear your package cache, in a terminal:
sudo apt-get clean
Then try