When upgrading a ISR 4451 from isr4400-universalk9.03.13.04.S.154-3.S4-ext.SPA.bin to isr4400-universalk9.16.06.04.SPA.bin is the rommon firmware upgrade included? I ask because when I upgraded my 4351's a month ago to 16.9.1 a prompt came up telling me a rommon upgrade was required and then asked if I wished to make that upgrade.
However, when I attempt to upgrade my 4451's to 16.6.4 the upgrade fails and I never saw such a prompt regarding the upgrade of the rommon version. Below is the output from the boot for when that upgrade attempt failed.
Is it because 16.9.1 includes the rommon upgrade and 16.6.4 does not? What about 16.7.3?
Boot image size = 551375660 (0x20dd532c) bytes
Package header rev 1 structure detected
Calculating SHA-1 hash...done
validate_package: SHA-1 hash:
calculated 1434d9d3:b78a4c70:ce453089:80f13824:e9a5a1b0
expected 1434d9d3:b78a4c70:ce453089:80f13824:e9a5a1b0
Signature verification failed for key# 2
Signature verification failed for key# 3
Failed to validate digital signature
Signature verification failed for key# 2
Signature verification failed for key# 3
Failed to validate digital signature
RSA Signed REVOCATION Image Signature Verification Failed.
Package Load Test Latency : 6513 msec
Unsigned package found, aborting ...
boot: error executing "boot bootflash:isr4400-universalk9.16.06.04.SPA.bin"
autoboot: boot failed, restarting...
