Reference Guide

--scndidemaster
Valid Argument auto, o
Description Enables or disables secondary parallel IDE master channel.
--scndideslave
Valid Argument auto, o
Description Sets the secondary parallel IDE master channel to o or auto.
--scsi3
Valid Argument enable, disable
Description Enables or disables the third built-in SCSI controller.
--sdcardboot
Valid Argument enable, disable
Description
Enables or disables the system to boot from SD card.
• enable — Allows the system to boot from SD card.
• disable — Restricts the system to detect SD card and boot from the SD card.
--sdcardreadonly
Valid Argument
enable, disable
Description
Enables or disables the read-only mode for SD card.
--secureboot
Valid Argument
enable
Description
Enables secure boot authentication. If enabled, BIOS should only perform Secure Boot
authentication and boot in UEFI mode without loading Compatibility Support Module (CSM). BIOS
refers to this setting to decide on the POST behavior.
NOTE: You cannot disable secure boot using the Dell Command | Congure user
interface. One of the methods of disabling secureboot is from the BIOS setup screen.
Table 6. Secure Boot with UEFI mode and Legacy Option ROM
UEFI mode — enable
legacyorom — enable
UEFI mode — enable
legacyorom — disable
UEFI mode — disable
legacyorom — enable
When secureboot is enabled NOT Allowed Allowed NOT Allowed
When secureboot is disabled NOT Allowed Allowed NOT Allowed
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