v Setup utility settingsv Operating-system control-file setupSee Appendix E, “Getting help and technical assistance,” on page 841 forinformation about calling IBM for service.Recovering from a UEFI update failure or UEFI image corruptionThis information provides instructions on how to Recovering from a UEFI updatefailure or UEFI image corruption.About this taskImportant: Some cluster solutions require specific code levels or coordinated codeupdates. If the device is part of a cluster solution, verify that the latest level ofcode is supported for the cluster solution before you update the code.If the server firmware has become corrupted, such as from a power failure duringan update, you can recover the server firmware in either of two ways:v In-band method: Recover the server firmware, using either the UEFI bootrecovery jumper (Automated Boot Recovery) and a server Firmware UpdatePackage Service Pack.v Out-of-band method: Use the IMM web interface to update the firmware, usingthe latest server firmware update package.Note: You can obtain a server update package from one of the following sources:v Download the server firmware update from the World Wide Web.v Contact your IBM service representative.To download the server firmware update package from the World Wide Web, go tohttp://www.ibm.com/supportportal/.Attention: Installing the wrong firmware or device-driver update might cause theserver to malfunction. Before you install a firmware or device-driver update, readany readme and change history files that are provided with the downloadedupdate. These files contain important information about the update and theprocedure for installing the update, including any special procedure for updatingfrom an early firmware or device-driver version to the latest version.The flash memory of the server consists of a primary bank and a backup bank. Youmust maintain a bootable UEFI firmware image in the backup bank. If the serverfirmware in the primary bank becomes corrupted, you can either manually bootthe backup bank with the UEFI boot recovery jumper (J71), or in the case of imagecorruption, this will occur automatically with the Automated Boot Recoveryfunction.In-band manual recovery methodTo recover the server firmware and restore the server operation to the primarybank, complete the following steps:Procedure1. Turn off the server, and disconnect all power cords and external cables.210 System x3750 M4 Types 8722 and 8733: Installation and Service Guide
