Description

The attempt to install Service Pack 22.1.5 (2304) gets the following error:  "RTS Error occured. Details in SP log file" -- despite which, the "ver" command shows "Aleph 22.1.5 (2304)".  
Any attempt to uninstall the Service Pack fails with the message:

/exlibris/aleph/a22_1/aleph/proc/../../service_pack/129_2304.yyyymmdd_nnnnnn.log: Not a directory 

in the "5.  Run SP Utility" step, which must be done to get to the uninstall step.

Resolution

The problem appeared because the customer tried to install the service pack without first installing Third Party Products.  
This is the error in the sp.log file : 
Checking RTS ... 
/exlibris/aleph/a22_1/aleph/exe/rts32: error while loading shared libraries: libcrypto.so.1.0.0: cannot open shared object file: No such file or directory 
---------------------- 
It's related to the libcrypto.so.1.0.0 that is used from OpenSSL 1.0.1p that is linked inside the new rts32 Aleph library. 
It is now working. The command " $aleph_exe/rts32" is used from the sp.install script to check the RTS32 and now it's working.