Cisco Bug: CSCub16372 - Very rarely, ISR-G2 IOS cannot boot up with certain ROMMON versions
Feb 08, 2017
- Cisco 3900 Series Integrated Services Routers
Known Affected Releases
Symptoms: In extremely rare cases, an ISR-G2 cannot boot up with certain ROMMON versions with the error "Signature did not verify". So far, only one image is found to have this problem: c3900-universalk9-mz.SPA.152-1.T3.bin. Conditions: The issue will happen when all three conditions are met at the same time: 1. The platform is affected. 2. The ROMMON version running at the router is within the affected ROMMON version range. 3. The first calculated hash value is 0 during the IOS image building process. Since it is extremely rare that the third condition will occur, so far only one CCO image is found to have this problem.
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Bug Details Include
- Full Description (including symptoms, conditions and workarounds)
- Known Fixed Releases
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