I built a stack of two WS-C2960X-48TD-L and upgraded them to c2960x-universalk9-mz.152-2.E6.bin, which would get stuck during boot at some Point after loading the Image.
Then I tried c2960x-universalk9-mz.152-4.E4.bin which worked for one of the switches in the stack, but now the other one shows only "BOOT FAIL" after issuing the reload command and needs a hard reset via power cable to boot up normal. Not sure if this is just another known IOS bug or the switch is damaged.
Any ideas? Thanks in advance.