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Risks & pre-upgrade checklist

| Symptom | Likely fix | |--------|-------------| | Switch doesn’t boot new image | Check flash space, file corruption, boot var typo | | “universalk9” license missing | license boot level lanbase + reload | | SFP modules not recognized | Upgrade to this exact version (E7 fixes some PHY issues) |

If you are currently working with this file on a switch, you can verify it using these commands: Check running version: show version View files in flash: dir flash: Set boot image: boot system flash:/c2960l-universalk9-mz.152-7.E7.bin

Department of Medicine