Dnia 2017-07-04, wto o godzinie 19:02 +0930, Wayne Hartell pisze: > > On 04-07-17, Wayne Hartell wrote: > > > > > > > >Did you try to change mirror you use in your sources.list? > > > > > > > > > > I did and it doesn't help (I get the same error with multiple > > > different sources). > > > > > > GPG error: http://deb.debian.org/debian stretch-updates InRelease: The > > > following signatures couldn't be verified because the public key is > > > not > > > available: NO_PUBKEY 8B48AD6246925553 NO_PUBKEY 7638D0442B90D010The > > > repository 'http://deb.debian.org/debian stretch-updates InRelease' is > > > not signed.Updating from such a repository can't be done securely, and > > > is therefore disabled by default.See apt-secure(8) manpage for > > > repository creation and user configuration details. > > > > > > Notably, the keys (e.g., 8B48AD6246925553 and 7638D0442B90D010) ARE > > > present when I run 'apt-key list'. > > > > > > When I search this forum for these keys (e.g., "8B48AD6246925553") I > > > find two threads with similar kinds of errors, but no solution on > > > either. I'm wondering whether I have fallen into some kind of crack > perhaps. > > > > > > > Not sure that it will be helpful, but just a thought. How about > reinstalling debian-archive-keyring package? > > That doesn't seem possible, I get: > "Reinstallation of debian-archive-keyring is not possible, it cannot be > downloaded." > > I tried adding my installation DVD back into the sources, but apt rejects it > with the following: > "The repository 'cdrom://Debian GNU/Linux 9.0.0 _Stretch_ = Official amd64 > DVD Binary-1 20170617-13:08] stretch Release' does not have a Release file." >
1. Comment out DVD repository from /etc/apt/sources.list (add # before deb cdrom:...). 2. Try to # apt-get update 3. Check if it work. If not, manualy download latest debian-archive-keyring for stretch (from repository) and install it like this: #dpkg -i /path/to/debian-archive-keyring.deb and try again to make update.