Considerations For Downgrading Firmware; Preinstallation Messages - Brocade Communications Systems 8 Troubleshooting And Diagnostics Manual

5

Considerations for downgrading firmware

TABLE 11
Scenario under which download fails
An access error occurs during
firmwaredownload because the
removal of the USB device, or USB
device hardware failure, etc.
USB device is not enabled.
Considerations for downgrading firmware
The pre-installation check of the firmwareDownload command detects all of the blocking
conditions that can prevent a successful downgrade, and warns you about all these conditions. The
error messages displayed by the firmwareDownload command states the blocking conditions and
the corresponding commands to correct them. You must address all of these blocking conditions
before proceeding. Refer to the Fabric OS Administrator's Guide for more information regarding
individual features and commands.
To avoid failure of a firmware downgrade, verify the firmware you are downgrading to supports all
the blades in the chassis, and that the switch, blades, or chassis supports all the features you are
currently using. If not, you will need to disable or remove those features that are not supported.

Preinstallation messages

The messages in this section are displayed if an exception case is encountered during firmware
download. The following example shows feature-related messages that you may see if you were
upgrading from v6.3.0 to v6.4.0:
This example shows hardware-related messages for the same downgrade example:
58
USB error handling
Cannot upgrade directly to 6.4. Please upgrade to 6.3 first and then upgrade
to 6.4.
Upgrade is not allowed because one of the Zones or configs defined on this
switch is using a reserved naming prefix "msfr_zn" or "msfr_cfg" please rename
them before upgrading.
Upgrade is not allowed because Secondary RKM KV is registered. Please use
"cryptocfg --dereg -keyvault <label> " to deregister the secondary KV and then
try again.
Upgrade is not allowed because in one or more of the 10-bit area supported
partitions, some of the areas in range 0x7000 - 0x8F00 are taken. Please
release these areas using "portaddress --unbind" or "wwnaddress--unbind"
accordingly.
ecp:admin> firmwaredownload
Type of Firmware (FOS, SAS, or any application) [FOS]:
Server Name or IP Address: 10.1.2.3
User Name: userfoo
Error handling
Firmwaredownload will timeout
and commit will be started to
repair the partitions of the CPUs
that are affected. See previous
table for details.
Firmwaredownload will fail with
an error message
Fabric OS Troubleshooting and Diagnostics Guide
Action
None.
Enable the USB device using the
usbStorage -e command and retry
firmwaredownload.
53-1001769-01