Article ID: 14586
Products
S-Series, firmware 7.62.01.0009 and higher
Changes
Booting the system onto v7.6x or higher firmware for the first time.
Symptoms
Seeing a "CBondNvram: Bad NVRAM csum" error in Syslog and Message Log ('show support'); for example:
code:==============================================================================
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code:Bond[4.tusrAppInit]CBondNvram: Bad NVRAM csum 00; 00:01:00:00 - 00:00
Cause
This is due to the Virtual Chassis/Switch Bonding (VSB) area of NVRAM being found uninitialized, expected upon the first use of a VSB-aware firmware image. It may occur regardless of actual VSB configuration.
Solution
This message is harmless, requiring no user action, if seen under the stated conditions.