[Bug 1753532] Re: apt-get update doesn't get new packages

[Frank Heimes]

How do your apt config folders look like?

$ ls -la /etc/apt/apt.conf.d/
00aptitude             01autoremove-kernels   15update-stamp         70debconf
00trustcdrom           01-vendor-ubuntu       20archive              99update-notifier
01autoremove           10periodic             50unattended-upgrades  

$ ls -la /etc/apt/preferences.d/
total 8
drwxr-xr-x 2 root root 4096 Apr 14  2016 .
drwxr-xr-x 6 root root 4096 Mar  6 03:45 ..

Do you have special (maybe unwanted) files (for example for pinning) in
place?

Do you notice a difference if using apt instead of apt-get?
sudo apt update
apt list --upgradable
and then maybe:
sudo apt upgrade
or:
sudo apt full-upgrade

Btw. In your sources.list you have lot's of deb-src lines active - in
case you don't do development based on the package sources you should
consider to disable them (comment out).

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https://bugs.launchpad.net/bugs/1753532

Title:
  apt-get update doesn't get new packages

Status in apt package in Ubuntu:
  Incomplete

Bug description:
  apt-get update and upgrade do not upgrade the system
   
  --Steps to Reproduce---
   apt-get update and apt-get upgrade.  It shows nothing to upgrade. But the kernel level is in an old version. 
   
  New kernel packages are not shown in apt-cache. Somehow, the new packages are not being got from repo server when do apt-get update.

  Executed on 16.04.3

  Btw, not all the Ubuntu servers have that issues. I crossed check the
  sources.list among the servers, there is no difference. So don't know
  what caused some of them cannot get any update from ubuntu repo.
  However, I can install individual packages via apt-get install
  command.

  There is not any error during the apt-get update && apt-get upgrade.
  It showed nothing to upgrade.

  Hit:1 http://ports.ubuntu.com/ubuntu-ports xenial InRelease
  Hit:2 http://ports.ubuntu.com/ubuntu-ports xenial-updates InRelease
  Hit:3 http://ports.ubuntu.com/ubuntu-ports xenial-backports InRelease
  Hit:4 http://ports.ubuntu.com/ubuntu-ports xenial-security InRelease
  Reading package lists... Done
  Reading package lists... Done
  Building dependency tree
  Reading state information... Done
  Calculating upgrade... Done
  0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

  The servers were able to manually upgrade for a long time. But all the
  sudden, they are not upgradable. It looks it can not retrieve new
  kernel level packages during the apt-get update. The highest kernel
  level can be installed is 4.4.0-97.. not more higher..


  HWS: I mirrored this problem description, to be able to get support
  for getting this fixed. Even it seems to be an environment problem.
  But direct Q&A will probably help....

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