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Brocade switch firmware upgrade hung with firmware version reporting as "Unknown"

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338
Visibility:
Public
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1
Category:
fabric-interconnect-and-management-switches
Specialty:
brocade
Last Updated:

Applies to

Brocade 6510 Switch

Issue

  • While performing FOS upgrade from v7.4.1d  -> v8.1.2k2 ->  8.2.3b, the switch stopped responding. 
  • Rebooting the switch will bring it up temporarily but not long enough to collect a supportsave.
  • Switch cli is getting into hung state while running any commands.
  • The switch goes into not responding state during the process of  firmware download and below error was observed after restarting the ssh
    connection:

Raslog Module Initialisation failed
rc=-1
**************************************************************
*
*
* Fabric OS has detected frequent switch reboot condition.   *
* Following actions can be taken to recover the switch:      *
* -
Use supportsave to collect supportsave data.             *
* - Contact Brocade support team for further assistance.     *
*
                                                   *
**************************************************************
sysmodAttach
open failed: No such device or address
sysconModel: : Illegal seek
can't get Sw Model= 1, default to SilkwormsysmodAttach open
failed: No such device or address
sysconModel: : Illegal seek

 

  • firmwareshow output shows unknown FOS version.

firmwareshow -v       :

CURRENT CONTEXT -- 0 , 128

Appl     Primary/Secondary Versions
------------------------------------------
FOS      v7.4.1d
         Unknown

WARNING: Firmwaredownload is in progress.

 

  • Errdump reports Processor rebooted - Software Fault:Kernel Panic.

errdump -a       :

2023/04/29-17:14:31, [HAM-1004], 44732, CHASSIS, INFO, brocadeswitch, Processor rebooted - Software Fault:Kernel Panic.
2023/04/29-18:01:42, [HAM-1004], 44735, CHASSIS, INFO, brocadeswitch, Processor rebooted - Software Fault:Kernel Panic.

 

  • As per RAS log, there is read failure that returned input/output error.
    =====
    rsync: read errors mapping "/etc/fabos/openssl.cnf": Input/output error (5)
    =====

 

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