To upgrade PBXware from version 2.0 to 2.2 , you first need to update to the latest 2.0 version in the Setup Wizard->Updates. You then need to update HTTPD:

Check to see if your PBXware has the gnap version of HTTPD by executing

cat /home/servers/httpd/sh/update

If your PROJECT line has httpd-2.x-gnap, do the following:
 

• cd /home/servers
• wget http://downloads.bicomsystems.com/httpd/httpd-gnap.tgz
• httpd/sh/stop
• tar -xf httpd-gnap.tgz
• httpd/sh/start

Otherwise:

• cd /home/servers
• nano httpd/sh/update
• change PROJECT line from PROJECT="httpd-2.0" to PROJECT="httpd-2.2"
• httpd/sh/stop
• httpd/sh/update   with username=pbxware and password=update
• httpd/sh/start

Now you need to convert to Static/ODBC mode. To do that, go to the Setup Wizard->Configuration Mode (https://ip-addr:81/).
If that doesn't succeed, re-save the Server details and try again.
If asterisk and/or pbxware aren't started, execute

• /home/servers/pbxware/sh/pbxware dreload

- Do the following before updating:

• cd /home/servers/sitemanager
• nano sh/updates
• change PROJECT line to 'sitemanager-2.2'
• Save with CTRL+o and exit with CTRL+x
• cd /home/servers/pbxware
• nano sh/update
• change PROJECT line to 'pbxware-2.2'
• Save with CTRL+o and exit with CTRL+x

- Now you can proceed with the update, keeping in mind that whenever asked for username=pbxware and password=update

• cd /home/servers/sitemanager
• sh/update
• cd /home/servers/pbxware
• sh/update
• cd /home/servers/sitemanager
• sh/restart
• cd /home/servers/pbxware
• sh/pbxware restart

 
Check in Settings->About to verify that the upgrade went well.