A few days ago I have asked the same question. In my case migration from R77.30 to R80.20:
MDS migration from R77.30 to R80.20
To sum it up:
- Transfer R80.10 ISO to the R77.30 MDS
- Mount R80.10 ISO
- Run "<MOUNT_POINT>/linux/p1_install/mds_setup" script
- Follow on-screen wizard to create report (what are errors or warnings) and/or export itself
- Transfer export from R77.30 MDS to the R80.10 MDS
- Run command "$MDSDIR/scripts/mds_import.sh /var/log/exported_mds.<DATE>.tgz" on R80.10 MDS
- Wait ... Wait ... Wait ...
The script "mds_setup" will check all created CMAs for possible errors and warning, including Global Policy.
I am not sure about licenses. Once migrated, the original lics are also migrated, which means there will be wrong CK key (MAC of Mgmt interface)...
Kind regards,
Jozko Mrkvicka