07-03-2012 04:18 PM
I have upgraded an EV7.5 installation to EV8SP5, both FSA and Exchange. There are 5 file servers involved in the FSA configuration, and I upgraded the FSA agent on one server only. This was due to a reboot being required following upgrade - and as I was upgrading to EV9 shortly after I decided to leave the other 4 servers. All worked fine with the one I upgraded and rebooted.
Following the EV9 upgrade I attempted to upgrade the remaining 4 file servers from the 7.5 FSA AGent to EV9SP3 FSA Agent. ALL of the 4 servers failed the upgrade with the same error. I tried both install from with the VAC and also a local install on each file server - same results - each failed and rolled back. The message I am seeing in EV Installation Log is near the end, and is as follows:
ISSCRIPT_VERSION_MISSING = The InstallScript engine is missing from this machine. If available, please run ISScript.msi, or contact your support personnel for further assistance.
I see many references to this message regarding installations of various software products, but nothing relevant for EV. I didn't try to install EV8SP5 on these remaining 4 servers, would that of worked ? Is it an issue with installing EV9SP3 FSA Agent over the EV7.5 agent, it seems strange that the one I picked at random for the EV8SP5 upgrade wotked OK.
Any advice welcome.
07-03-2012 05:02 PM
What version of windows you installing on?
Also take a look at this
i also saw some references to MSI vs EXE with UAC enabled, you may need to just right click and do Run As Administrator
07-04-2012 03:58 AM
I'm not sure but perhaps the 9.0.x Agent binaries don't have the logic to upgrade a 7.5.x agent.
It might be worth trying to upgrade the agent to 8.0.x first and see how things are handled.
Otherwise I would suggest to manually un-install the FSA Agent from one system and then try the push install with 9.0.x
07-04-2012 04:14 AM
WIndows is W2K3 SP2 - so no UAC issues.
I saw that technote - it is specific to System Recovery and none of these entries are in place on my fileservers.
I considered trying the EV8SP5 upgrade (which worked on one file server last week) - but as it was late didn't attempt it last night. The other option of uninstalling the EV7 Agent and trying a fresh install of EV9SP3 was also considered, however I was concerned that if I couldn't get the EV9SP3 agent on I would be left with a system with no functioning agent (at least it is all working OK at present). !
I would have expected that EV9SP3 could update EV7.5 binaries, but I guess if we have to step EV server through 8 to get to 9 maybe the upgrade of the FSA Agent isn't supported (although don't see it noted anywhere)
07-04-2012 05:43 AM
07-04-2012 05:48 AM
It's strange that you have this on all 4 file servers.
The web results for the error you reported seem to relate to Install Shield.
I would still suggest to manually un-install the Agent from at least one system, and then try installing the 9.0.x.
07-05-2012 12:56 AM
I will do this and report back (still have a little fear as to what happens if I cannot get ANY agent back onto the file server.....).
May try and upgrade the one I moved to EV8SP5 already up to EV9SP3 and see if that goes OK ??