IBM Installation Manager 1.8.0 + Windows Server 2008 R2 unsupported?
Currently trying to upgrade JTS + CCM from version 4.0.7 to version 5.0.2, which involves installing 5.0.2 into its own package group.
CRJAZ9001W - The version of the operating system is not supported.
The operating system version is 6.1.0. That version is older than the supported release version of 6.1.7600.
See the list of supported server operating systems, and upgrade the OS level to a supported level. Then, restart the installation.
[Details: os.name=Windows Server 2008 R2; os.arch=amd64; os.version=6.1; distribution=]
CRJAZ9001W - The version of the operating system is not supported.
The operating system version is 6.1.0. That version is older than the supported release version of 6.1.7600.
See the list of supported server operating systems, and upgrade the OS level to a supported level. Then, restart the installation.
[Details: os.name=Windows Server 2008 R2; os.arch=amd64; os.version=6.1.7601; distribution=]
Accepted answer
I looked and the system requirements for RTC 5.0.2 do point to Installation Manager 1.8 or above.
This appears to be a known issue:
https://jazz.net/forum/questions/174407/operating-system-is-not-supported-clm-502
The defect doesn't explain the workaround, just that the issue is fixed in RTC 6.0.x
My understanding is that the error message does not prevent you from installing. I think continuing the installation should be successful. One other suggestion is to try using the latest IM to install with. Generally speaking, you can always use the latest version of IM to install with.
IBM Installation Manager 1.8.7
http://www.ibm.com/support/docview.wss?uid=swg24043549