No, there are two different use cases here: 1. Did apt-get update (potentially) change something? 2. Did apt-get update (potentially) change everything?
In the general case, 1 is what you need to know. For example, a tool that runs update and then upgrades your system: You don't want to prevent the system from being upgraded (in an update&&upgrade type scenario) just because some third party repository disappeared. Then there is the question of fatal vs non-fatal errors. A DNS resolution error like here is most likely temporary, you don't want to fail update because of it, this would just confuse users (don't spam me twice a day with errors just because my machine is offline). -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to apt in Ubuntu. https://bugs.launchpad.net/bugs/1693900 Title: apt-get update should return exit code != 0 on error Status in apt package in Ubuntu: Triaged Bug description: When running 'apt-get update' (e.g. on a container install post- install script), apt-get return with exit code 0, even so it wasn't able to "update" properly. E.g.: + apt-get update Err:1 http://de.archive.ubuntu.com/ubuntu xenial InRelease Temporary failure resolving 'de.archive.ubuntu.com' Err:2 http://security.ubuntu.com/ubuntu xenial-security InRelease Temporary failure resolving 'security.ubuntu.com' Err:3 http://de.archive.ubuntu.com/ubuntu xenial-updates InRelease Temporary failure resolving 'de.archive.ubuntu.com' Reading package lists... Done W: Failed to fetch http://de.archive.ubuntu.com/ubuntu/dists/xenial/InRelease Temporary failure resolving 'de.archive.ubuntu.com' W: Failed to fetch http://de.archive.ubuntu.com/ubuntu/dists/xenial-updates/InRelease Temporary failure resolving 'de.archive.ubuntu.com' W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/xenial-security/InRelease Temporary failure resolving 'security.ubuntu.com' W: Some index files failed to download. They have been ignored, or old ones used instead. It should be corrected to return useful exit code, so that scripts can take the appropriate actions ... To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1693900/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp