I have 9 switches all together currently running on IOS 15.0(1)SE2 (which originaly came together with those switches). As per company requirement, we need to standardize and upgrade all switch in the data center to the latest IOS 15.2(1)E1. But only these 9 switches are having problem, the rest of 2960 TS-L is working fine after the upgrade.
After the switch reloaded, it will boot up the IOS but with error. It seems like the switch will only boot up the basic feature of the IOS. Running config is not loaded. None of the interfaces detected. Couldnt find any bug related in Bug toolkit or similar case in this forum. It has permanent license. I have attached some of the IOS upgrade logs. If anyone can help me here I'd greatly appreciate it. Thank you.