I have set up two Debian Stretch systems, one new installation by 'netinst' CD, one upgraded from Jessie.
After that, I have installed the command-not-found package.
apt install command-not-found
The installation ran smoothly, with neither errors nor warnings. As suggested in the installation process output, I ran update-command-not-found
subsequently. This command does not give any output at all and returns with exit code 0 – no errors.
However, when I type some non-existing command, I get an error nevertheless:
Could not find the database of available applications, run update-command-not-found as root to fix this
foobarbaz: command not found
This happens on both systems. I have no clue how to fix this issue. What have I missed?
UPDATE:
For some reason update-command-not-found
worked on my local system just now. It shows some download URLs fetching data from. Now, the console works as expected. I did nothing since this morning, the system had gone in sleep mode while I was absent.
On the remote system the issue is remaining.
Best Answer
The solution:
There were wrong entries in the
/etc/apt/sources.list
file. The package needs to be updated via the update repository. There has been a wrong entry derived from the provider's local Jessie mirror repository. I have changed the URLs to the original Stretch reporitory but missed to replace a slash by a dash (stretch/updates
=>stretch-updates
).Add to file
/etc/apt/sources.list
:Run: