> > Read this: > > > > https://unix.stackexchange.com/questions/75807/no-public-key-available-on-apt-get-update > > > > Thanks. Yeah I have tried importing keys (even though they already exist as > confirmed with 'apt-key list' and it makes no difference. All the keys > complained about are already present. > > I don't have enough experience nor understanding of Linux to know whether > it's a bug or dumb user and though I suspect the latter, I feel like there's > a chance it could be the former. >
Hmmm I use Jessie for last years, with no any experience with Strech yet. But I feel you have some problem(s) with sources.list or with apt file(s) privileges somehow/somewhere. In this link before, there is something more - did You try to install debian-keyring (before was debian-archive-keyring)?
