On Fri, Jan 10, 2014 at 2:50 PM, Dridi Boukelmoune <dridi.boukelmoune@xxxxxxxxx> wrote: > On Fri, Jan 10, 2014 at 1:04 AM, Kevin Kofler <kevin.kofler@xxxxxxxxx> wrote: >> Bill Nottingham wrote: >> >>> Matthew Miller (mattdm@xxxxxxxxxxxxxxxxx) said: >>>> I'm a little lost in the thread, but do you mean that yum's protected >>>> packages functionality is undocumented? If that is what you mean, check >>>> the man page. It says: >>>> >>>> protected_packages This is a list of packages that yum should >>>> never completely remove. They are protected via Obsoletes as >>>> well as user/plugin removals. >>>> >>>> The default is: yum glob:/etc/yum/protected.d/*.conf So any >>>> packages which should be protected can do so by including a file >>>> in /etc/yum/protected.d with their package name in it. >>>> >>>> Also if this configuration is set to anything, then yum will >>>> protect the package corresponding to the running version of the >>>> kernel. >>> >>> While documented, I do find this last bit of behavior extremely odd and >>> non-intuitive. (And hardcoded, no less.) >> >> There should just be a separate protect_running_kernel boolean option, which >> would default to the above odd behavior for compatibility if not set (but >> explicitly setting it to either 1 or 0 would override that either way). > > Can't the kernel package itself do that ? > > I'm thinking about the %preun section (maybe %pretrans ?) where the > package would know it's being removed, and could find out whether it's > the running kernel. > > One might also want to build a distribution on top of yum/rpm but > choose a different name for the kernel package like "linux" or > "linux-kernel". This reminds me that yum is built on top of rpm, and rpm doesn't mean linux. I remember my first time on AIX, and the surprising (yet unpleasant) fact that I had to use (a very old version of) rpm. >From rpm.org: > RPM is a core component of many Linux distributions, such as Red Hat > Enterprise Linux, the Fedora Project, SUSE Linux Enterprise, openSUSE, > CentOS, Meego, Mageia and many others. > > It is also used on many other operating systems as well >From rpm5.org: > But RPM is also used for software packaging on many other Unix operating > systems like FreeBSD, Sun OpenSolaris, IBM AIX and Apple Mac OS X > through the cross-platform Unix software distribution OpenPKG. I actually remember a comparison matrix of OpenSolaris forks, some of them chose /rpm5?/ for package management, but I can't find a link. I do understand why people would want such features built-in, but it seems a bit short-sighted. And by short-sighted I don't mean a bad idea, I mean restricted to Fedora/RHEL and very close distributions. I don't know yum's goals, but the man page yum(8) and the faq don''t seem to mention any tight coupling to rhel-like linux distribution. Again, I'm not saying this would be a bad thing. AFAICT yum is tied *by essence* to rhel, but I'm also wondering what upstream thinks about portability, because the whole kernel issue is a portability no-no. > Dridi > >> Kevin Kofler >> >> -- >> devel mailing list >> devel@xxxxxxxxxxxxxxxxxxxxxxx >> https://admin.fedoraproject.org/mailman/listinfo/devel >> Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct
