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I fond a yum repo

I have some questions about it:

  1. There have list of directories, I find only the latest version directory have content: enter image description here

the old 4.2 do not have content, why? enter image description here

  1. the version 6 have 6/ 6.0/, 6.1/ ... 6.9/, what's the difference between 6.x with 6/?

  2. In the buildlogs.centos.org site, there have c6-*/directories and c7-*/directories, if I download them, where should I put ?


EDIT-01

I still have a question, that is a saying the 6/ point to 6.<latest>, the content below the 6/ directory is as the same as 6.2/.
when the repo at first the latest version is 6.2/ the 6/ point to 6.2/, when the version become 6.8/ will the directory 6/ delete all the data and re-copy the 6.8/'s data? so the 6/ point to the latest content?

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Apparently the repository is arranged so that e.g. the 6/ directory points into 6.<latest>, as long as that major release is supported. For example, when 6.10 was the latest 6.x version, 6/ would be the same as 6.10/. When 6.11 was released, 6/ changed to point into 6.11/ instead.

The 6/ is probably actually just a symbolic link that points to whichever 6.x/ directory is the latest one, although the web listing won't tell you that.

When a particular major release has reached End-Of-Life (currently all 5.x and older), the content is replaced with a simple readme file indicating that if you need packages for obsolete releases you should find them in http://vault.centos.org/<version.number> instead.

The main vault.centos.org system also does not allow downloading any *.iso files to save bandwidth, although you can see they are there. If you need *.iso files for old releases, you should use one of the CentOS vault mirror servers listed on the vault page, preferably one that's physically nearest to you.

The buildlogs.centos.org site, as the name implies, contains an archive of CentOS binary packages, the corresponding source code packages, and package build logs. These are not required for mirroring a basic RPM package repositories. The names of c6-*/ and c7-*/sub-directories reflect the various optional sub-repositories.

Unless you are troubleshooting a particular bug or working for CentOS Quality Assurance, they are not particularly interesting: if you don't know why you would need them, you probably should not download them. If you do need them, then you should put them where you need them.

If you are maintaining a CentOS repository mirror, you should read the CentOS mirroring guidelines to understand the best way to do it. It also mentions the address of a CentOS-mirror mailing list, and the Freenode IRC channel #centos-mirror: you could ask there to reach people that are likely to have the best knowledge about CentOS mirrors.

  • But, how about the such c6-extras/ directories, what's them? – 244boy Sep 24 at 9:28
  • @244boy Edited my answer. – telcoM Sep 24 at 11:46
  • i download a public repo, the 6/ is not a symbolic link . – 244boy Sep 24 at 13:49
  • and if I want the content of buildlogs.centos.org to be my public repo's part, and users can install buildlogs's packages from my repo. how to do with it? – 244boy Sep 24 at 13:53
  • Is your download method capable of replicating symbolic links? rsync might do it, wget will not. And buildlogs.centos.org is not a yum repository. If something is in the buildlogs server but not in the actual CentOS repositories, that probably means the package failed to build correctly or is very experimental: the buildlogs server is a service for people that build new packages to CentOS. It allows developers to troubleshoot the autobuild process. – telcoM Sep 25 at 5:46

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