Actually this is the problem: Users think, their system is up-to-date, but it is not for sure because a site failed to respond. Therefore only if _all_ sites answered the request properly, apt-get should return 0. If not, it should return a specified return code, which lets the callee know, that there was a problem [and imply, that a subsequent apt-get upgrade might bring the system to the latest supported state, or not]. If the exit code for such situations is documented properly, the tool can still decide, whether to run the upgrade or would be bredless art.
BTW: It doesn't really matter, what error (whether temp. DNS, LDAP lookup, network, etc.) prevented a successful update. Fact is, that there was an error and this needs to be communicated. CLI tools do that via exit code. -- 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
