my console says the following:
[root@localhost shyam]# urpmi.update -a
examining synthesis file [/var/lib/urpmi/synthesis.hdlist.Installation CD1 (cdrom1).cz]
examining synthesis file [/var/lib/urpmi/synthesis.hdlist.Installation CD2 (cdrom2).cz]
examining synthesis file [/var/lib/urpmi/synthesis.hdlist.Installation CD3 (cdrom3).cz]
retrieving source hdlist (or synthesis) of "update_source"...
http://www.mirror.ac.uk/sites/sunsit...info/hdlist.cz
...retrieving failed: curl: (22) The requested URL returned error: 502
...retrieving failed: curl failed: exited with 22 or signal 0
retrieval of source hdlist (or synthesis) failed
no hdlist file found for medium "update_source"
examining synthesis file [/var/lib/urpmi/synthesis.hdlist.update_source.cz]
[root@localhost shyam]#
what is that should i do?