On Fri, 2005-04-29 at 10:33 -0600, Anne & Lynn Wheeler wrote: > i've been having all sorts of sporadic problems where yum won't install > new updates ... because of supposed dependencies. I wondered if that has > contributed to my problem with ACPI all of a sudden generating tens of > megabytes of syslog entries about my laptop screen. > > A "yum list" of all installed packages turned up about 100 packages that > appear to be left over from FC3 ... and hadn't been deleted in the FC4 > upgrade (there were 100 packages that had both an earlier version and a > later version). Manually going thru all 100 and deleting the earlier > version seems to have eliminated various YUM error messages about not > being able to apply various packages (because of conflicting > dependencies) ... but that still hasn't stopped the ACPI syslog message > flood on my laptop machine. I think you need to turn off GPG signature checking to prevent some update issues. A quick search on google for "upgrade FC3 to FC4" gave an interesting link which basically said that it is possible to mess up: https://www.redhat.com/archives/fedora-devel-list/2005-February/msg01355.html Given the mixed results I'd recommend a clean install of FC4Tx/FC4 over an upgrade from FC3 to FC4Tx/FC4. Regards, Patrick