This procedure explains how to upgrade a single IMSVA to
version 9.1.
Procedure
- Back up IMSVA 9.0 Patch 1.

Note
For details, see Backing Up IMSVA 9.0 Patch 1. - Use the following command in the CLI console to verify
there are no messages in the Postfix queue:
postqueue –p - Restart the server that you want to upgrade with the IMSVA Installation DVD.

Note
For details, see Step 1 in Installing IMSVA.The IMSVA 9.1 Setup Wizard screen appears. - Select Fresh install or version upgrade.The License Agreement screen appears.
- Click Accept to continue. A keyboard language selection screen appears.
- Select the keyboard language for the system, and then click
Next.A screen appears for you to select your installation type.

Note
If you find the message "Upgrade IMSVA 9.0 Patch 1 to IMSVA 9.1" while upgrading IMSVA 9.0 Patch 2, ignore this message because the Setup Wizard can work normally for 9.0 Patch 2. - Select Version Upgrade, and then click
Next.The IMSVA upgrade program scans your hardware and software to determine if the minimum requirements have been met and displays the results. If the hardware or software contains any components that do not meet the minimum requirements, the upgrade program highlights those components and the upgrade stops.

Note
If the free space for database upgrade is insufficient, remove old log files from/var/app_data/imss/logand try again. Make sure that the free disk space on/var/app_datais at least 1.25 times the disk space on/var/imss. - Make sure the hardware and software information is correct, and then click
Next.The Account Settings screen appears.
- Specify passwords for the root and enable
accounts.IMSVA uses two different levels of administrator types to secure the system.The password must be a minimum of 6 characters and a maximum of 32 characters.

Tip
For the best security, create a highly unique password only known to you. You can use both upper and lower case alphabetic characters, numerals, and any special characters to create your passwords.-
Root Account: Used to gain access to the operating system shell and has all rights to the server. This is the most powerful user on the system.
-
Enable Account: Used to gain access to the command line interface's privilege mode. This account has all rights to execute any CLI command.
-
- Click Next. A screen appears, showing a summary of your configuration settings.
- Verify settings, and then click Next.A screen appears that provides the formatting status of the local drive for the IMSVA upgrade.Once the formatting is complete, a summary screen appears.
- Click Restart to restart the system.The upgrade continues after the system restarts. When the following information appears, the upgrade is complete.

Note
To avoid any unexpected error, do not restart your machine in any of the following steps. - Press any key to enter the system shell command line interface.
- Use the following command to verify the upgrade:
# tail -1 /var/app_data/installlog - Once IMSVA upgrade completes, restart
IMSVA services from the CLI console with the following command:
/mnt/backup/dry_run.sh - Verify that IMSVA is working properly after the upgrade.
- To roll back to IMSVA 9.0 Patch 1, use the following
commands:
/mnt/backup/confirm.sh“no” - If the IMSVA is working properly after the upgrade, use
the following commands to complete the upgrade:
/mnt/backup/confirm.sh“yes”If you do not roll back to IMSVA 9.0 Patch 1 within 2 hours, all IMSVA services will stop automatically. You must then decide whether to roll back to IMSVA 9.0 Patch 1, or to complete the upgrade using the following command:/mnt/backup/confirm.shType yes to complete the upgrade or no to roll back.
