To echo what the other's have said, call TAC.
I had the same issue & was able to get w/ TAC to resolve it. Make sure you've downloaded the correct driver for your version of CPPM from the support site. They are in the ClearPass folder under the "Tools & Resources" Tab, not software (as one would suppose).
Once you've downloaded it, depending on your version of CPPM you may or may not be able to import it as an update. CPPM > Administration > Agents and Software Updates > Software Updates.
If you run into issues (as I did) call TAC.
They essentially had me upload the update to the CPPM server via the CLI using the arubasupport user (which you'll have to enable to get shell access to your CPPM server). I used SCP.
$ scp CPPM-x86_64-20140218-mysql-support-patch.zip.signed arubasupport@<YOUR CPPM IP>:~/.
CPPM-x86_64-20140218-mysql-support-patch.zip. 100% 210KB 209.8KB/s 00:00
$
Once you have that done, login to your CPPM using the arubasupport user & launch a shell. Then copy the file to the update directory :
[arubasupport@CPPM ~]$ sudo sh
sh-4.1# ls
bin CPPM-x86_64-20140218-mysql-support-patch.zip.signed
sh-4.1# cp CPPM-x86_64-20140218-mysql-support-patch.zip.signed /var/avenda/platform/store/updates/
sh-4.1#
Then, open a new shell & login as the appadmin user. Apply the update.
[appadmin@CPPM]# system update -i CPPM-x86_64-20140218-mysql-support-patch.zip.signed
Installing patch from=CPPM-x86_64-20140218-mysql-support-patch.zip.signed
Extracting patch...
INFO - CPPM-x86_64-20140218-mysql-support-patch.zip.signed is signed
INFO: Preparing ...
INFO: Running pre-install scripts ...
INFO: Applying patch ...
INFO: Recording patch ...
INFO: Running post-install scripts ...
Preparing... ########################################### [100%]
1:mysql-connector-odbc ########################################### [100%]
Success: Usage count is 1
INFO: Patching complete with status - 0
Exiting with 0
[appadmin@CPPM]#
That did it for me, now on to configuration, Policy Simulation, & testing.