Wireless Access

After upgrading to AMP 7.6, you will see this notification:

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AMP 7.7 will remove support for your operating system.
Please contact Aruba Networks Support for more information.
1-800-WiFi-LAN or support@arubanetworks.com
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What does this mean to you?

     This means that AMP 7.7 will not allow upgrades if your OS is not CentOS 6 / RHEL 6 or higher.

How do I check my OS?

     You can check your current OS by viewing the redhat-release file:

     # cat /etc/redhat-release

     This is also aliased as 'crr' if you're using the default AMP bash file.

What should I do if I'm still on CentOS 5 / RHEL 5 or lower?

     The main steps:  Upgrade to latest release that supports the OS version (If you haven't kept up on upgrades, you may need to do several upgrade steps, see http://kb.airwave.com/?sid=50140000000Mf7D), create a backup of the upgraded data, pull the backup off server, reinstall off the latest 7.6 ISO, restore the backup.

     Step by step details:

          1. Upgrade to latest AMP version: # start_amp_upgrade -v 7.6.1 (as of 2013-Jan-08)

          2. Create a backup: # amp_backup

          3. SCP or FTP the databackup.tar.gz in /alternative to another server or file storage (to be safe, also grab backups from /var/airwave-backup)

          4. Follow quick install guide to fresh install off of the latest AMP ISO, version number needs to match step 1.

          5. SCP or FTP the databackup.tar.gz back onto AMP in /var/airwave-backup

          6. Restore the backup: # amp_restore -d /var/airwave-backup/databackup.tar.gz

          7. Check OS: # cat /etc/redhat-release (# crr)

Thanks for the info!

Rob,

Having followed the steps and got up to 7.6.2, what do I do next when

Current Version: RELEASE_7_6_2
[root@airwave mercury]# cat /etc/redhat-release
CentOS release 5.5 (Final)
[root@airwave mercury]#

Your AMP is reporting that you're on CentOS 5.5, so you will want to upgrade the OS.

Take a backup of the AMP:
     # ./amp-backup

Copy the backup from /alternative to an off server location

(I also suggest copying some pre-upgrade backups from /var/airwave-backup - just in case we need to roll back due to issues in the restore process)

Take note of your current system:
Things not in backup - IP tables, server certs, crontab changes, IP/NTP settings, mail relay settings, and AMP license key

Any patches?

     # cd /root/svn/mercury

     # svn status

If svn status returns nothing, then there are no patches.

If svn status returns a list of files, open a support case to see if these patches will need to be re-applied.  Often times patches eventually enter the main code base.

Download the 7.6.2 ISO from the support site.

Reinstall the server from the ISO (following the quick start guide).

Copy the backup files into /var/airwave-backup

Restore the backup file:

     # amp_restore -d /var/airwave-backup/name.of.backup.file

After restore, do a health check around the AMP to verify that devices are communicating properly and that the graphs hold data from before the AMP was taken down for reinstall.  If you were using an external authentication for AMP, you may have to login as a local AMP database user to re-input the authentication secrets for the auth server.

If you run into any difficulties with these steps, you can seek guidance from support by opening a support case.

This is an awesome post. Thanks Rob.

I am in the middle of planning all of my upgrades for Airwave....9 Different servers...

I  will definitely take a deeper look at my upgrades now.

After reading this more thoroughly.

Let's say your OS is 5.5 and AMP is version 7.5.7, you take a backup.

Re-install AMP using the ISO on 7.6.2 and restore the backup, doesn't the restore break since you are restoring to a newer version and the same 7.5.7 version?

Edit: Will we need to run a "make"??

From OS 5.5 / AMP 7.5.7, you'd first upgrade AMP to 7.6.2.  (Since there are background processes doing the upgrade, I like to wait a day or 2 after the upgrade before performing the OS migration)

Force an AMP backup: # amp_backup

Copy that backup from /alternative to a location off server

I also suggest copying some of the backups from /var/airwave-backup in case there are any issues with the forced backup

Fresh install off the 7.6.2 ISO

and then copy back / restore the AMP backup.

If you follow the above, you should not need to run 'make' at all.

Ah yes "doh"

I for some reason was thinking a direct upgrade to 7.7. I confused myself.