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Thursday, September 26, 2013

SAP Kernel librfcum.so Missing

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When trying to start a SAP system I got an error from the sapstart.log indicating that librfcum.so was missing.
This was not in any of the exe directories or in any of the Kernel distribution files.

During an upgrade, a kernel was patched with a unicode kernel when it should have been a non-unicode kernel.
The correct kernel patch was then deployed into the central exe directory, but it looks like sapcpe did not correctly detect and replace the kernel files on the other instances.

The solution to the missing librfcum.so problem, was to completely remove the kernel files in the instance exe directories, then manually run sapcpe (sapcpe pf=<instance pf>) to re-copy the files from the central exe directory.

This fixed the issue.

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