yum does not resolve dependencies correctly "yum upgrade perl" tries to update "perl" and "perl-libs" only. rpm_check_debug then fails, because there are numerous module packages installed which explicitly require a particular version of perl, but yum does not notice: # yum upgrade perl [...] Resolving Dependencies --> Running transaction check ---> Package perl.i386 4:5.10.0-26.fc10 set to be updated --> Processing Dependency: perl-libs = 4:5.10.0-26.fc10 for package: perl --> Running transaction check ---> Package perl-libs.i386 4:5.10.0-26.fc10 set to be updated --> Finished Dependency Resolution Dependencies Resolved ============================================================================= Package Arch Version Repository Size ============================================================================= Updating: perl i386 4:5.10.0-26.fc10 development 14 M perl-libs i386 4:5.10.0-26.fc10 development 899 k Transaction Summary ============================================================================= Install 0 Package(s) Update 2 Package(s) Remove 0 Package(s) Total size: 15 M Is this ok [y/N]: y Downloading Packages: Running rpm_check_debug ERROR with rpm_check_debug vs depsolve: perl is needed by (installed) perl-Pod-Escapes-1.04-20.fc9.i386 perl is needed by (installed) perl-Pod-Escapes-1.04-20.fc9.i386 perl is needed by (installed) perl-version-0.74-20.fc9.i386 perl is needed by (installed) perl-version-0.74-20.fc9.i386 perl is needed by (installed) perl-IO-Compress-Base-2.008-20.fc9.i386 perl is needed by (installed) perl-IO-Compress-Base-2.008-20.fc9.i386 perl is needed by (installed) perl-Pod-Simple-3.05-20.fc9.i386 perl is needed by (installed) perl-Pod-Simple-3.05-20.fc9.i386 perl is needed by (installed) perl-Pod-Simple-3.05-20.fc9.i386 perl is needed by (installed) perl-Pod-Simple-3.05-20.fc9.i386 perl is needed by (installed) perl-Module-Pluggable-3.60-20.fc9.i386 perl is needed by (installed) perl-Compress-Raw-Zlib-2.008-20.fc9.i386 perl is needed by (installed) perl-Compress-Raw-Zlib-2.008-20.fc9.i386 perl is needed by (installed) perl-IO-Compress-Zlib-2.008-20.fc9.i386 perl is needed by (installed) perl-IO-Compress-Zlib-2.008-20.fc9.i386 perl is needed by (installed) perl-Test-Harness-2.64-20.fc9.i386 perl is needed by (installed) perl-Test-Harness-2.64-20.fc9.i386 perl is needed by (installed) perl-devel-5.10.0-20.fc9.i386 perl is needed by (installed) perl-devel-5.10.0-20.fc9.i386 perl is needed by (installed) perl-ExtUtils-MakeMaker-6.36-20.fc9.i386 perl is needed by (installed) perl-ExtUtils-MakeMaker-6.36-20.fc9.i386 perl is needed by (installed) perl-ExtUtils-MakeMaker-6.36-20.fc9.i386 perl is needed by (installed) perl-ExtUtils-ParseXS-2.18-20.fc9.i386 perl is needed by (installed) perl-ExtUtils-ParseXS-2.18-20.fc9.i386 perl is needed by (installed) perl-ExtUtils-ParseXS-2.18-20.fc9.i386 Complete! # rpm -qR perl-ExtUtils-MakeMaker /usr/bin/perl perl >= 0:5.00503 perl >= 0:5.005_03 perl = 4:5.10.0-20.fc9 perl(AutoSplit) [...] Sure, the packages contain silly redundant requirements, yet yum should not get confused by that.
I'm pretty sure we fixed this bug in 3.2.18 (the problem would go away if you did the perl-libs update directly, yes?)
You are right, I have verified that yum 3.2.18 fixed this bug.