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BootingtoaRemovableMediaDevice
Tomakearemovabledevicebootable,theUEFIapplicationsimplyneedstoberenamedtoBOOTx64.EFI(case
insensitive)andplacedinthe\EFI\BOOTdirectory.
Whenaremovabledevice,suchasaUSBkey,isdetectedinUEFIBootMode,abootoption
isautomaticallyadded
topointtothefollowinglocation:
\EFI\BOOT\BOOTx64.EFI
UEFIBootManager
TheUEFIBootManagerisenteredbypressing<F11>duringthepre‐bootphaseofsystemstartup.InUEFIboot
mode,itreplacesboththeBIOSBootManagerandthebootconfigurationoptionsintheBIOSSetupUtility<F2>.
WhentheBootModeissettoUEFItheBIOSSetupUtility
fields,BootSequenceandUSBFlashDriveEmulation
Typearegrayedout,replacedbyenhancedoptionsintheUEFIBootManager.
BootOptions
ThefrontpageoftheUEFIBootManagerlistsbootoptionsinorderofbootpriority.Selectionofanyofthese
optionsresultsinanattemptto
boot.Iftheoptionisnotbootable(forexample,nomediainanopticaldrive),an
errormessagedisplaysalongwithaprompttoentertheUEFIBootManagerortheBIOSSetupUtility.
Incaseswhereabootoptionhasbeenaddedmanuallyorbyanoperatingsysteminstallationand
thatoptionisno
longervalid(forexample,ahard‐diskdrivehasbeenremoved),theoption willcontinuetobelisted,butwillbe
grayedoutanddisplay“Unavailable.”BootOptionentriesforremovabledevicesareautomaticallyaddedand
removedbasedininsertionandremovalofthedevice.
UEFIBootSettings
TheUEFIBootSettingsmenucanbeenteredfromthefrontpage.Thefollowingoptionsareavailablefromthis
menu:
Option Description
AddBootOption Providesamenufromwhichtoselectabootoption.
FormassstoragedeviceswithaFAT32filesystem,amenu
displaystonavigatetoafiletoselectasthebootoption.
ForPXE‐capabledevices,thedeviceitselfcanbeselected.
Whenaddinganewbootoption,theDescriptionandOptionalDatacan
beentered.TheDescriptionidentifiesthedeviceintheUEFIBoot
Manager;theOptionalDataispassedtothebootimage,pertheUEFI
specification.
DeleteBootOption Providesamenuofbootoptionsthatweremanuallyandoperating
systeminstalledandcanbedeleted.Bootoptionsthatwere
automaticallyaddedarenotlisted.
Enable/DisableBoot Providesamenuofbootoptionsthatcanbedisabledwhichremoves
themfromthebootoptionlist.Disableddevicescanbere‐enabledfrom