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Cisco Bug: CSCuo48978 - UCSM - Prevent downgrade of FW to lower than min required for IVB CPUs

Last Modified

Nov 28, 2018

Products (1)

  • Cisco Unified Computing System

Known Affected Releases

2.1(2a)C 2.2(1.210)A 2.2(1.210)C 2.2(1.219)A

Description (partial)

BIOS images released prior to 2.1(3) and 2.2(2) do not support IVY Bridge based C220/C240 and C22/C24 Servers respectively. 
UCSM does not restrict BIOS downgrade on IVY Bridge based C220/C240 and C22/C24 servers. 
After BIOS downgrade to unsupported versions is completed, the servers will not boot and Discovery and Associate FSMs will not proceed beyond 'Wait For BIOS Post Completion' stage.

1. Connecting IVY Bridge based C220/C240 and C22/C24 servers to UCSM with default C-Series firmware pack set to unsupported versions.
2. Activating Unsupported BIOS on IVY Bridge servers.
3. Associating unsupported BIOS through Host Firmware pack on IVY Bridge servers.
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