OPERATIONAL DEFECT DATABASE
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ISSU from 8.3.x to 8.4.x may fail with the following error message, instead of a message with correct failure reason. "Pre-upgrade check failed. Return code 0x40930066 (SRG processing failed)"
use the commands "show install all failure-reason" and "show incompatibility-all system " to identify the dynamic incompatibility, correct the incompatibility and start install again.
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Cisco Integration
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