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Operation Procedure
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3.5.5. OS Boot from EFI Shell
In addition to OS boot from the EFI Boot Manager, the OS can be booted by entering a
command at the EFI Shell. An example of booting the OS from the EFI Shell is shown below.
Example: OS boot from the SCSI disk with the following hardware connection:
− IDE DVD-ROM (Master)
− SCSI HDD (OS boot disk)
(1) Specifying the file system
Change the current file system to the file system connected to the boot device. “fs0”is the
boot device in the screen image shown below.
Image of the EFI Shell screen
Shell> map
Device mapping table
fs0 : Acpi(PNP0A03,3)/Pci(2|0)/Scsi(Pun0,Lun0)/HD(Part1,Sig0A7C0000)
fs1 : Acpi(PNP0A03,0)/Pci(2|1)/Ata(Primary,Master)/CDROM(Entry1)
blk0 : Acpi(PNP0A03,3)/Pci(2|0)/Scsi(Pun0,Lun0)
blk1 : Acpi(PNP0A03,3)/Pci(2|0)/Scsi(Pun0,Lun0)/HD(Part1,Sig0A7C0000)
blk2 : Acpi(PNP0A03,3)/Pci(2|0)/Scsi(Pun0,Lun0)/HD(Part2,Sig0A7C0000)
blk3 : Acpi(PNP0A03,0)/Pci(2|1)/Ata(Primary,Master)
blk4 : Acpi(PNP0A03,0)/Pci(2|1)/Ata(Primary,Master)/CDROM(Entry1)
Shell> fs0:
Enter “fs0:”
Boot device