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I goofed when changing the controlling subsystem

I changed the controlling subsystem to QINTER instead of QCTL. After an IPL the machine won't come up. Any ideas?

IPL your system manually into system service tools (SST). Complete instructions on how to do this can be found in the library in the OS/400 backup and recovery guide. The library can be obtained here.The procedure is located in section: Task 1-Performing an Attended IPL. Make sure to change the option "Define or change system at IPL" to "Y".

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