About 4-5 days ago, some updates showed up, but I had the router off. I - not knowing that - clicked on "Install". The update manager showed me "Downloading updates failed. Check your internet connection". So, I did not install the updates.
However, 2 days ago, with the router on, I clicked on "Install". It downloaded some packages, but others failed. And with those packages, the whole download process failed. I tried again a few times, also yesterday, but; the same result.
If you wonder,
apt works perfectly - I can install, remove & purge packages normally.
Probably I have to reinstall
update-manager because of corruption. But, if the issue is more complex, I am free to suggestions. I also want to install the new Linux kernel (
linux-4.4.0-111.134) in order to avoid the Spectre and Meltdown vulnerabilities.
Can anyone please help me?