Dell Brocade G620 Brocade 8.0.1 Fabric OS Troubleshooting and Diagnostics Guid - Page 62

Firmware Download Errors Message Probable cause and recommended action Cannot upgrade directly to v7.4.0. Upgrade your switch to v7.3.0 first before upgrading to the requested version. If the switch is running v7.2.0 or earlier, you are not allowed to upgrade directly to v7.4.0 because of the "two-version" rule. Upgrade your switch to Fabric OS version v7.3.0 before upgrading to v7.4.0 Message Probable cause and recommended action Non-disruptive firmwaredownload is not supported when downgrading to 7.2. Please use firmwaredownload -s to download the 7.2 firmware. If the switch is running v7.4.0, you are not allowed to downgrade directly to v7.2.x without causing disruption to your fabric. Downgrade using the firmwareDownload -s command. Platform The following system message pertains to switch features or fabric-wide settings that must be removed or disabled before downgrading the firmware. Message Probable cause and recommended action Downgrade is not allowed because VF is enabled. Please run "lscfg -config" and "lscfg --delete" commands to remove the non-default LS first, then run "fosconfig --disable vf" to disable VF before proceeding. You cannot downgrade because Virtual Fabrics is enabled. Delete the logical switches, delete the base switch, and disable Virtual Fabrics prior to downgrading the firmware. Routing The following system message refers to any route settings that must be changed prior to downgrading the switch's firmware. Message Probable cause and recommended action Please use "configure" to clear the location ID. If the switch is running v7.1.0 or later, and Location-Oriented Link Aggregation is configured, you cannot downgrade the switch to v7.0.0 or earlier. Use the configure command to clear the location ID. Brocade Fabric OS Troubleshooting and Diagnostics Guide 62 53-1004126-01