Understanding the naming convention helps identify exactly what you are installing: : The hardware platform (Catalyst 2960-S).
Understanding Cisco IOS Release 15.2(2)E9: c2960s-universalk9-mz.152-2.e9.bin c2960s-universalk9-mz.152-2.e9.bin
Some administrators have reported that a specific 2960-S switch may upgrade successfully while an identical unit fails, repeatedly boot-looping with error messages. In such cases, the boot loader may be at fault. c2960s-universalk9-mz.152-2.e9.bin
