In recent times, some users have experienced problems updating their SME server. Updating with yum from server-manager or command line can be very slow with many errors such as "[Errno -1] Metadata file does not match checksum Trying other mirror". This is because our traditional primary mirror site at Ibiblio is experiencing intermittent full hard drive issues. All downstream mirrors from them thus also have issues.
To remedy this situation, we've recently moved our primary mirror to the CA mirror (mirror.canada.pialasse.com). A new smeserver-yum package is available from the update repository. If you are experiencing issues updating your server, installing this new package from the command line should fix the issue.
From a terminal logged as root, issue the following commands to update yum on SME server Version 7.xx:
yum clean all
Followed by (copy and paste the full three lines):
rpm -Uhv \
http://mirror.canada.pialasse.com/releases/\
/7.6/smeupdates/i386/RPMS/smeserver-yum-2.0.0-17.el4.sme.noarch.rpm
Followed by:
signal-event yum-update
You should then be able to fully update your server in the usual ways.