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CFBIOS-1937: AFF A900, ASA A900 or FAS9500 with BMC 16.4 and BIOS 18.15 fails to boot

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ontap-9
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hw
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Issue

  • AFF A900, ASA A900 or FAS9500 systems experience a continuous reboot loop during an ONTAP upgrade or after the BIOS 18.15 or later service image is manually installed
  • This condition can result in loss of system availability until corrective action is taken
  • The issue occurs only under a specific firmware combination and upgrade sequence
  • A node in the system enters a reboot loop during ONTAP upgrade or after the service image is installed
  • The following is example output shown on the serial console port. It is repeated for each reboot loop.

BIOS Version: 18.15
Portions Copyright (C) 2014-2025 NetApp, Inc. All Rights Reserved.
Initializing System Memory ...
Loading Device Drivers ...
Configuring Devices ...
1048576 MB System RAM Installed.
Boot Loader version 8.6.1
Copyright (C) 2000-2003 Broadcom Corporation.
Portions Copyright (C) 2002-2025 NetApp, Inc. All Rights Reserved.
ACPI RSDP Found at 0x6f7fe014
Running commands in STARTUP. Press Ctrl-C to stop at next reboot
Error: test is an invalid parameter for the priv set command!
Starting AUTOBOOT press Ctrl-C to abort...
 
Affected Systems:
  • AFF A900, ASA A900, FAS9500
  • Systems upgrading from older ONTAP releases or installing a BIOS service image where:
    • BIOS is upgraded to version 18.15 (or later)
    • Installed BMC firmware at time of upgrade is version 16.4 or earlier

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