Anyone running an older 32-bit version of Airwave, I got these upgrade steps from TAC and they worked out well. I took a VM image of the old server and ran the upgrade on it with no real issues. The new 7.4.2 version is pretty slick so far.
1. Download the 32-bit upgrade package
2. Use a file transfer tool like winSCP and place the upgrade package in the /root directory.
3. Login to GUI and copy the license from Home>License including the "Begin License" and "End License" lines and save it in an external disk.
4. Log into CLI and enter the following command :
#start_amp_upgrade -v 7.2.5
5. Once the upgrade is completed, run the following command to take the 32-bit backup.
#amp_backup
6. Use a file transfer tool like winSCP to copy the 32-bit backup from /alternatives/databackup.tar.gz and save it in an external disk.
7. Download the 64-bit ISO file for AMP version 7.2.5.
8. Burn a CD from the AMP software image.(ISO burning instructions can be found in the AirWave Quick Start Guide available at http://support.arubanetworks.com)
9. Do fresh install of 7.2.5.64 bit.
10. Once the upgrade is completed, Place the backup file in /tmp and run the following command to restore backup.
# amp_restore -d /tmp/databackup.tar.gz
11. Download the 7.4.0 upgrade package from the link below and place it in /root directory.
12. Run the below command to upgrade the AMP to 7.4.0
# start_amp_upgrade –v 7.4.0
13. Once the upgrade complete use the below command to check if the upgrade was successful.
# amp_version