On Thu, 2009-01-01 at 12:13 -0700, Christopher A. Williams wrote: > Building a 64-bit system was NOT successful - for the same reasons I > brought up before about 32-bit packages being arbitrarily included with > their 64-bit counterparts. Whatever is happening here has to be with > code that is likely shared between Revisor, Yum Extender, and a few > other tools. If we can get this part fixed, we will have made major > strides forward. It's not arbitrary, it's multilib. When composing an install tree, you need to bring in every multilib possibility offered by the repos, and later at install time the proper ones will be installed as needed. EG: at compose time if you have foo-devel in your packages set, we'll gather up foo-devel.x86_64 and if it's available, also gather up foo-devel.i386. Not every x86_64 package in the x86_64 upstream repos has a matching i386 package, the decisions on this are done by software called "mash" which is the tool we use to create repos from koji tags. Once you've done your compose, and somebody goes to install from it, they could have something in their packages explicit like foo-devel.i386, which means that the foo-devel.i386 in your compose will be installed to that person's system. Or they may use a different multilib installing algorithm, one that forces all multilib to be installed rather than relying on the current Fedora default of "best match" that is typically don't install any multilib. The hardest thing for people to reconcile is that the depsolving and package selecting used during a compose is different from that used during install. During install, tools find the "best" match for thing requested, but during compose the tools find all possible matches for requests. This is so that the "best" decision is made at install time, based on the requests of the user doing the install, rather than pre-selected at compose time by the person doing the compose (where essentially every package is selected, instead of a set few). -- Jesse Keating Fedora -- Freedom² is a feature! identi.ca: http://identi.ca/jkeating
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