Description of problem: attempting a yum upgrade from FC4 -> FC5 (using http://download.fedora.redhat.com/pub/fedora/ linux/core/5/x86_64/os/Fedora/RPMS/fedora-release-5-5.noarch.rpm) In the "yum update" command php is set to 5.1.2 (Package php.x86_64 0:5.1.2-5 set to be updated) but php-pear requires 5.0.4-10.5 (Error: Package php-pear needs php = 5.0.4-10.5, this is not available.) There seems to be an inconsistency somewhere. An update of a x386 system, also FC4-> FC5, went fine without this problem.
Please show the complete yum output. The package dependencies are correct - if yum is not finding the new php-pear package (which does *not* require php-5.0.4) then there is some other problem.
Sorry, now I cannot reproduce the problem because I worked around the problem, see below. The seems not the be any logs that has the error messages; the yum.log has only sucessful entries. The work around was to delelete the involved packages (saving cnf files first ....): php php-mbstring php-mysql php-pear squirrelmail and then install them again.
Could be an FC4 yum problem; an anaconda upgrade is the only supported method, anyway, so closing this.