08-14-2019 02:35 PM - edited 02-21-2020 11:08 AM
Hello,
Trying to reimage new 3615 boxes with 2.4 image with new ISO. I followed Cisco doc as it.
performed step 1 to 10 from above document. After reloading boxes and booting it from USB , I did get notification for below
Cisco ISE Installation (Serial Console)
Cisco ISE Installation (Keyboard/Monitor)
System Utilities (Serial Console)
System Utilities (Keyboard/Monitor)
I chose Cisco ISE Installation (Keyboard/Monitor) but after this I got an error (please see the attached screenshot).
error: /syslinux/vmlinuz has invalid signature. Please help me to resolve this issue.
Thanks
Aravind
Solved! Go to Solution.
08-26-2019 08:05 PM
Hi @ccole
Did you upgrade your CIMC by any chance? ISE uses UEFI Secure Boot and this means it will perform a certificate check against the OS boot sector. If you use a random version of the UCS C220 CIMC firmware then you will prevent ISE from booting. The CIMC versions that ISE support are just a few.
08-15-2019 01:38 PM
Hi,
Please make sure you use the right image. It is looking for signed image that is correct for the appliance.
08-15-2019 01:43 PM
Hi Krishnan,
Thank you for your response.
We are using the right image that is correct for the appliance.
ise-2.4.0.357.SPA.x86_64_SNS-36x5_APPLIANCE_ONLY.iso
Thanks,
Aravind Ravikumar.
08-26-2019 09:35 AM
Hello, has this been resolved yet? I have a "errors: /syslinux/vmlinux has invalid signature"
08-26-2019 08:05 PM
Hi @ccole
Did you upgrade your CIMC by any chance? ISE uses UEFI Secure Boot and this means it will perform a certificate check against the OS boot sector. If you use a random version of the UCS C220 CIMC firmware then you will prevent ISE from booting. The CIMC versions that ISE support are just a few.
08-28-2019 03:57 PM
09-22-2019 08:25 AM
Had the same issue, and TAC has confirmed that it is a bug.
Bug ID: CSCvq94084
Description: Unable to install 2.4 on 36xx appliance via USB flash Drive
Symptom: ISE 2.4 new ISO using USB flash drive as USB boot installation is faster than vKVM ISO mounting installation, getting below error:
HTH!
error: /syslinux/vmlinuz has invalid signature
error: you need to load the kernel first.
Conditions: ISE 2.4 ISO installation on 36XX via USB flash drive
Workaround: Use vKVM ISO mounting installation (CIMC)
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