On Tue, Mar 27, 2018 at 07:50:03PM +0200, Jean-Baptiste Thomas wrote: > After apt-get update, attempting to install ntp tries to > download version 1:4.2.8p10+dfsg-3+deb9u1 and fails. It tries > to download +deb9u1 because > > $ aptitude show ntp > Package: ntp > Version: 1:4.2.8p10+dfsg-3+deb9u1 > State: not installed > [...] > > and it fails because the version of the package in the Debian 9 > mirror listed in /etc/apt/sources.list is +deb9u2 : > > ntp_4.2.8p10+dfsg-3+deb9u2_amd64.deb > > I don't understand what went wrong. apt-get update seemed to go > well, only complaining about missing "DEP-11 64x64 Icons", which > are presumably not a vital part of ntp. > > How is this possible ? I'm confused.
I'm not sure if you really did what it sounds like you did here, but if you did... you can't mix and match commands to apt-get and aptitude. You did apt-get update so you need to use apt-get upgrade, or dist-upgrade, or whatever the apt-get command is (I don't much use apt-get, have switched to the apt command since upgrading to stretch). If you want to use aptitude upgrade, or dist-upgrade, or safe-upgrade, or whatever the command is (embarrassingly I have forgotten, I used aptitude for years _before_ upgrading to stretch) you need to first do aptitude update. apt-get update followed by aptitude upgrade will lead to pain. Hope that helps Mark