Unfortunately, one thing to note about our release of ArcFM 10.2.1 as a patch without full installers is that you need to install everything on the machine at 10.2 before upgrading each component to 10.2.1. I am told that we did this because we wanted to prevent people from getting their machines into unsupported configurations (ie, having a mix of 10.2 and 10.2.1 stuff).
However, there is a workaround for your particular situation. You should be able to install both the 10.2 .msi and the 10.2.1 .msp at the same time using msiexec.exe via the command prompt.
Using OHDA as an example, the syntax would be something similar to the following:
msiexec.exe /i D:\ArcFM_Overhead_Design_Analysis1020_10.20.0.309_Release.msi PATCH=D:\ArcFM_Overhead_Design_Analysis10.21.0.575.msp
One important thing to note is that you need to put the full path to the msi or msp in the command line. See here for some additional documentation.
I hope that helps.
Thank you Matthew for your immediate answer. I'll test your recommendation as soon as possible and let you know about the results.
We ran into this as well and had to pretty much map out which installer/patch got installed when. If you have to add an ArcFM component (such as Responder, Designer, or OHDA), you'll have to rollback all the ArcFM patches to get to base ArcFM 10.2, install the new component, and patch back up to current. I found that out when I went to install Responder after getting ArcFM 10.2 installed and patched to 10.2.1.
It's pretty brutal.
On that note, we've run into this on a lot of servers now... it hurts when you want to add an additional component to a box with other 10.2.1 components already installed (especially if there are a lot of installed components). We would LOVE to have standalone 10.2.1 installers at some point if that's being discussed at all.
Matthew, we successfully installed ArcFM Object Reader 10.2.1 using msiexec.exe via the command prompt as you recommended.
In this way, we solved our initial problem with ArcGIS map services.
Thank you again for your help!