If importing or synchronizing fails, and it isn't related to connection errors, you should consider clearing the cache. By default, the cache is located in /var/cache/rhn/. To clear it manually, issue the command:
rm -fv /var/cache/rhn/* |
In addition, you may set the cache refresh level for all importing and synchronizing using the --cache-refresh-level option of satellite-sync. Setting this to its highest level removes the cache entirely upon initialization and closure. Refer to Section 6.1.3 Import/Sync Cache Refresh for information on the available levels.