Hello, I'm looking for a way to replicate exact list of packages (including exact versions) from one CentOS 5 system to another.
The trigger - I want to be able to "yum update" on my test/staging systems (mostly distro updates and security fixes), verify that nothing breaks with this updates, then do a *smart* "yum update" on the production servers which will force them to use exactly the same package versions which currently exist on the test system. On the CentOS users mailing list somebody suggested "rpm -qa", which looks good, it gives output like: setup-2.5.58-1.el5 basesystem-8.0-5.1.1.el5.centos glibc-2.5-24 chkconfig-1.3.30.1-2 libsepol-1.15.2-1.el5 libstdc++-4.1.2-42.el5 elfutils-libelf-0.125-3.el5 libgcrypt-1.2.3-1 iptables-1.3.5-4.el5 slang-2.0.6-4.el5 So what's the best way to get this list to become the current state on another system? Is "xargs yum update < output-of-rpm-qa" enough? Should I use some mrepo (http://dag.wieers.com/home-made/mrepo/) magic to provide a repository with these exact list of yum packages and a "yum update" which uses this repository alone? What about deleted packages? How should I identify them and delete them? I supposed some shell scripting could find such packages. (PS - there was an excellent article with a title like "set manipulation using shell scripts" published not long ago, maybe posted here but I can't find it in the archives or my bookmarks, this could be useful for my last question). Are there tools which already exist to do something like this or will I have to role my own? Thanks, --Amos ================================================================= To unsubscribe, send mail to [EMAIL PROTECTED] with the word "unsubscribe" in the message body, e.g., run the command echo unsubscribe | mail [EMAIL PROTECTED]
