Hi, Recently, trying to do yum --enablerepo=sl-fastbugs update on an x86_64 SL 5.9 system (using a local mirror of the repo) fails with: file:///data/repo/scientific/59/x86_64/updates/fastbugs/repodata/primary.sqlite.bz2: [Errno -3] Error performing checksum The cause seems to be that the file fastbugs/repodata/primary.sqlite.bz2 now contains some sha256 rpm checksums (added in the most recent fastbugs updates; eg esc, glibc) that SL5 yum does not understand. Perhaps the associated data was created on an SL6 system? The problem can be worked around with: yum --enablerepo=epel install python-hashlib but the repodata should probably be fixed. Thanks.