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

Sandshark

I have no idea why you need the -f option to install nano

One NAS device in particular is a problem-child for me (I can't even get SMB to work on it anymore; not sure how or why, but it's a major pain-point). This was probably the first device I applied to patch to, so it likely gave me issues, after which point I'll have simply opted to apply the -f flag by default when installing it on the other NAS device.

[as for the rest...]

I agree with everything you said; I understand the motive, but disagree with the outcome/execution they opted for. It would've been better for them to inform the user via disclaimer and create a switch of sorts to turn off app functionality based on the user's preference & risk appetite. Moreover, it's crazy that they didn't even give a warning window prior to the user applying the update. Most of us assume updates are here to fix bugs & issues, but rarely do we consider a situation where a core function is simply torn out of OS... Anyway, I could go on forever, but I know I'm preaching to the choir here lol. My point is simply that the update's outcome was wildly unacceptable in my view; it should never have happened, and they should've restored what they broke immediately after, when users became confused, alarmed, and steeped in regret. Now they'll have a chunk of users who are either:

• cursing their product [not knowing the situation, but knowing the outcome],
• frustrated [because they realize what's happened, but don't have the technical confidence/competence to fix it], or
• feeling distrust towards Netgear/ReadyNAS [knowing what happened, having reverse-engineered the outcome, and having turned off all update-related activity].

All of these outcomes are damaging for not only the users & ReadyNAS, but also Netgear [in regard to reputation & reliability]. For example, every time I think about Netgear now, I'll be thinking about this issue; how can I recommend Netgear's products as a solution to anything/anyone in the future? They'd REALLY have to do something special to woo me... and even then, I'd [unfortunately] have a very hard time trusting them now.