We can upgrade Symantec Messaging Gateway (SMG) without Internet access.
Since version 10, we can upgrade SMG locally.
Here are the steps:
Preparation:
1. Install IIS on a Windows OS which located on the same network of the SMG
2. Expand the Default Web Site of the IIS, double-click the 'MIME Types':
3. Click 'Add' of the MIME Types:
4. Input '.iso' of the 'File name extension', for the 'MIME type', input 'text/plain':
5. Click OK to save the MIME types.
6. Copy the SMG OS restore ISO, for example Symantec_Messaging_Gateway_OSrestore_10.5.4-4_Linux_Int.iso to the root folder of the IIS
You can change the name of the ISO to a short one for convenience.
After the IIS prepared, we can start the local upgrade of the SMG.
7. Log into SMG command line as admin
8. Type the following command:
update localinstall http://<IPAddressOfTheIIS>/SMG1054.ISO
9. Type y to continue:
10. The SMG will start to download the ISO to local from the IIS:
11. After the download completed, the SMG will start to verify the signature of the package:
An invalid signatures will cause upgrade to abort with an error。
12. All the verified packages will be copied to a tmp location:
13. The upgrade process will be started:
14. Type space to continue to review the license agreement:
15. Type y to accept the license agreement:
16. The upgrade script start:
17. After the upgrade finished, there will be a summary and the SMG will be rebooted automatically:
After the SMG rebooted, it will take several minutes for the SMG to change and display as the new version.