88 Brocade Adapters Installation and Reference Manual53-1002144-01Using the Brocade Adapter Software Installer3• VMware systemsWhen upgrading the driver for VMware systems, you must reboot the host system. The newdriver is effective after system reboot. Because the ESX 5,0 driver installation process does notenforce maintenance mode, it is recommended that you put the host in maintenance mode, assince a system reboot is required after installation.• Software installation or upgrade on a host system with a large number of adapters could takemuch longer than normal.NOTETo make sure that the drivers and adapter boot code are synchronized, be sure to update youradapter with the latest boot image from the Brocade adapters website at www.brocade.com/adapterswhenever you install or update adapter driver packages. On the website , navigate to the driversDownloads page. Select your operating system from the Downloads list or download the ISO image.Refer to “Boot code updates” on page 118 for update instructions.Software downgrade using Adapter Software InstallerAlthough driver and HCM downgrades are not supported, the following procedures arerecommended for downgrading between versions 3.0, 2.3, 2.2, 2.1, 2.0, and 1.1.NOTEDowngrading the driver is not supported when downgrading from 3.0 to earlier versions. However, itis possible to restore the 3.0 configuration for version 2.3 if you explicitly save the configurationbefore removing 3.0 and installing version 2.3.Downgrading HCM and driver or HCM onlyTo downgrade HCM and adapter drivers or HCM only, follow these steps.1. Uninstall HCM and drivers or HCM only using procedures under “Software removal usingAdapter Software Uninstaller” on page 83.2. When a message box displays asking to back up the HCM configuration, be sure to click Yesand proceed with the software removal. (Refer to “HCM configuration data” on page 114).3. Install the desired version of the software using “Using the Brocade Adapter Software Installer”on page 68.4. During installation, when the “Found Backed up data” message displays prompting you torestore old configurations, select to restore the data and continue with the installation.Downgrading driver only1. Uninstall existing drivers using the procedures under “Software removal using AdapterSoftware Uninstaller” on page 83.2. Install new drivers using the procedures under “Using the Brocade Adapter Software Installer”on page 68.
