http://www.macnn.com/articles/08/06/16/xserve.efi.11.update/
Xserve EFI update improves stability
updated 11:10 pm EDT, Mon June 16, 2008
Xserve EFI 1.1 update
Apple on Monday unveiled Xserve EFI Firmware Update 1.1 for Intel Xserve servers, stating that the patch offers users improved stability when applied. As with most recent Apple updates, little is revealed about what problems the update resolves; it is not known whether "stability improvements" refers to freezing, kernel panics, or other miscellaneous temporary failures. Xserve EFI Firmware Update 1.1 is available from Apple's support website, and through Software Update.
As with all firmware downloads, Xserve EFI Firmware Update 1.1 requires an uninterrupted application process, since an improperly applied firmware patch can render a machine unusable. Users performing a headless upgrade can follow special instructions to install the update.
