User guide

•Afteryouchangethestartupsequence,ensurethatyouselectacorrectdeviceduringacopy,asave,ora
formatoperation.Otherwiseyourdatamightbeerasedoroverwritten.
•IfyouareusingtheBitLockerdriveencryption,donotchangethestartupsequence.BitLockerdrive
encryptionlocksthecomputerfromstartingoncedetectsthechangeofstartupsequence.
Tochangethestartupsequencetemporarilysothatthecomputerstartsfromadesireddrive,dothefollowing:
1.Turnoffthecomputer.
2.Turnonthecomputer.WhentheThinkPadlogoisdisplayed,pressF12.
3.Selectthedevicethatyouwantthecomputertostartfrom.
Note:TheBootmenuwillbedisplayedifthecomputercannotstartfromanydevices,ortheoperating
systemcannotbefound.
ThefollowingtableliststheStartupmenuitems.Defaultvaluesareinboldface.
Note:Someitemsaredisplayedonthemenuonlyifthecomputersupportsthecorrespondingfeatures.
Table9.Startupmenuitems
MenuitemValue
Comments
Boot
Selectthebootdevicewhenyoupressthepower
buttontoturnonthecomputer.
NetworkBoot
Selectthebootdevicewhenthesystemwakes
fromLAN.IfWakeOnLANisenabled,the
networkadministratorcanturnonallofthe
computersinaLANremotelybyuseofnetwork
managementsoftware.
UEFI/LegacyBoot
•Both
–UEFI/LegacyBootPriority
–UEFIFirst
–LegacyFirst
•UEFIOnly
•LegacyOnly
CSMSupport(forUEFIOnly)
•Yes
•No
Selectsystembootcapability.
•Both:Selectpriorityofbootoptionsbetween
UEFIandLegacy.
•UEFIOnly:Thesystemwillbootfromthe
UEFIenabledoperatingsystem.
•LegacyOnly:Thesystemwillbootfromany
operatingsystemotherthantheUEFIenabled
one.
Note:IfyouselectUEFIOnly,thesystemcannot
bootfromthebootabledevicesthatdonothave
theUEFIenabledoperatingsystem.
CompatibilitySupportModule(CSM)isrequired
forbootingthelegacyoperatingsystem.Ifyou
selectUEFIOnly,CSMSupportisselectable.
ForBothorLegacyOnlymood,CSMSupport
isnotselectable.
BootMode
•Quick
•Diagnostics
ScreenduringthePOST:
•Quick:TheThinkPadLogoscreenis
displayed.
•Diagnostics:Textmessagesaredisplayed.
Note:YoualsocanenterDiagnosticmodeby
pressingEscduringthePOST.
Chapter8.Advancedconfiguration103