On Thu, 22 Jan 2004, Karsten Jeppesen wrote: > > and adds programs it believes the average user should have > > He - that was an interesting remark. What makes yum think that you > should have a specific package? > I mean - it is all requires and provides. I would think any run would > result in a global hunt for unsatisfied requires? > Or am I wrong? > Can the repository mark certain packages as being "should have"? I think that the difference is that upgrades handle obsoletes (as listed in the RPM dependencies etc). An update will only update your existing configuration; and upgrade may completely remove an obsolete package and replace it with the upgrade's "equivalent" choice and (hopefully transparently, but sometimes that is not possible) manage the migration of any configuration data. So update is lovely as it contains "no surprises" (usually:-). Upgrade is also lovely as it moves you up to a whole new revision, automagically, usually, without reinstallation BUT it is also riskier because unless one works carefully and does the upgrade in several steps, actually LOOKING BEFOREHAND to see what yum is going to do and figuring out what you might want to preserve or skip, the upgrade may "surprise" you by dumping that lovely suite of programs you've been relying on since the mid 80's that somebody has decided is finally ready for that Great /Dev/Null in The Sky. (something Zen about that image...:-) rgb > > Karsten > > > On Jan 22, 2004, at 15:59, Paul Lankow wrote: > > > UPDATE - Updates programs you have installed. > > > > UPGRADE - In addition to an UPDATE it removes old programs, installs > > replacements and adds programs it believes the average user should > > have. > > > > Regards, > > Paul > > > >> I read the man pages, but...... > >> > >> What exactly is the difference between update (without parameters) > >> and > >> upgrade? > >> > >> They do load a different set of packages. > >> > >> > >> Karsten > >> > >> _______________________________________________ > >> Yum mailing list > >> Yum@xxxxxxxxxxxxxxxxxxxx > >> https://lists.dulug.duke.edu/mailman/listinfo/yum > >> > > > > > > --- _ > > Paul F. Lankow -o) > > Linux enthusiast /\\ > > fedora.redhat.com _\_v > > > > _______________________________________________ > > Yum mailing list > > Yum@xxxxxxxxxxxxxxxxxxxx > > https://lists.dulug.duke.edu/mailman/listinfo/yum > > > > _______________________________________________ > Yum mailing list > Yum@xxxxxxxxxxxxxxxxxxxx > https://lists.dulug.duke.edu/mailman/listinfo/yum > -- Robert G. Brown http://www.phy.duke.edu/~rgb/ Duke University Dept. of Physics, Box 90305 Durham, N.C. 27708-0305 Phone: 1-919-660-2567 Fax: 919-660-2525 email:rgb@xxxxxxxxxxxx
