How I got apt update and install to work (with Debian Jessie retired)

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ietsrl wrote:

whats change in apt.conf?

 

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It's actually not in the default ReadyNAS config at all.

Just read the info in the post right above yours...

Then you need to create /etc/apt/apt.conf with the following content:

Get::AllowUnauthenticated true;
Acquire::Check-Valid-Until false;