Have you being encountering kernel panic error in mac mountain lion instantly? At such erroneous condition you must attentive else the situation could even more disheartening. In usual case the kernel panic error triggered when there is fatal error detected by the operating system internally which yet not be recovered. In consequence of that your system screen turn into unexpected black screen while startup. You may face kernel panic error in mac mountain lion after updating the mac. Besides there could be other responsible factors behind this issue. No matter whatsoever the liable reasons, how to overcome this issue is the primary concern over here. So in order to resolve the problem you can try restarting the system. It has been found that sometimes minor issue can be resolved through system restart. Other than that starting system in safe boot, upgrading software, checking or repairing disk permission by disk utility would be fruitful in resolving kernel panic error in mac mountain lion. If all these failed then reinstall the fresh OS X is the mere option. And in case data loss happening scenario, data recovery should be taken into account. For recovery updated backup can be used. Otherwise use Mac Data Recovery Software.