Why incremental channel dump ISOes are having less number of packages as compare to RHN ?

Issue

• There appears to be more updates than what was downloaded from the incremental list when using the -m option for local satellite syncs,

  • From channel dump ISO,

  # satellite-sync -m /mnt/disk1 -c rhel-i386-server-5 --email >/dev/null 2>1
  
  ** /var/log/rhn/rhn_server_satellite.log **
  2014/02/03 10:56:31 -04:00 Importing package metadata
  2014/02/03 10:56:31 -04:00    Importing *relevant* package metadata: rhel-i386-server-5 (8)
  

  • From the RHN,

  # satellite-sync -c rhel-i386-server-5 --email >/dev/null 2>1 &
  
  ** /var/log/rhn/var/log/rhn/rhn_server_satellite.log **
  2014/02/03 15:33:12 -04:00 Importing package metadata
  2014/02/03 15:33:12 -04:00    Importing *relevant* package metadata: rhel-i386-server-5 (31)