Rolling Back an Upgrade

Procedure

1. If you created a ghost image or have a virtual machine image of your original IMSVA, replace the upgraded image with the original image.
2. Stop the cron service using the following command:
   service crond stop
3. Check the cron settings backup file /var/spool/cron/root.bakForUpgrade. After finding the file, restore the cron settings using the following command:
   rm -rf /var/spool/cron/root && /bin/mv -f /var/spool/cron/root.bakForUpgrade /var/spool/cron/root
4. Check the log backup file /var/app_data/imss/log.bakForUpgrade. After finding the backup file, restore the log file using the following command:
   rm -rf /var/app_data/imss/log/ && /bin/mv -f /var/app_data/imss/log.bakForUpgrade /var/app_data/imss/log/
5. Stop the database service using the following command:
   killall postgres
6. On the parent device, check the database backup file /var/app_data/imss/pgdata.bakForUpgrade. After finding the file, restore the database file using the following command:
   rm -rf /var/app_data/imss/db/pgdata && /bin/mv -f /var/app_data/imss/pgdata.bakForUpgrade /var/app_data/imss/db/pgdata
7. If not mounted, mount the root partition of IMSVA 9.0 Patch 1 using the following command:
   mkdir -p /var/tmp/orig_root

   mount -t ext3 /dev/mapper/IMSVA-Root1 /var/tmp/orig_root
8. Restore the /boot folder using the following command:
   /bin/cp -af /var/tmp/orig_root/boot-imsva-9.0-back-

   up-for-9.1/* /boot
9. Update the boot partition UUID.
   1. Obtain the 9.1 boot partition UUID from /etc/fstab.
   2. Replace 9.0 Patch 1 boot partition UUID in /var/tmp/orig_root/etc/fstab with 9.1 boot partition UUID.
10. Restart your machine.