UEFI shell command Definition
sermode Sets serial port attributes
set Displays or modifies UEFI Shell environment variables
setsize Set the size of a file
shift Shifts batch file input parameter positions
smbiosview Displays SMBIOS information
stall Stalls the processor for the specified number of microseconds
tapeboot Boot from tape
tftp Perform TFTP operation
time Displays or changes the current system time
timezone Displays or sets time zone information
touch Updates filename timestamp with current system date and time
type Displays file contents
unload Unloads a UEFI driver
ver Displays UEFI Firmware version information
vol Displays or changes a file system volume label
xchar Turn on/off extended character features
Drive paths in UEFI
Devices in the server are represented by device paths in the UEFI shell. Each internal SAS drive could be
configured either as:
• RAID mode
• HBA (raw) mode
NOTE:
A SAS drive in RAID mode is identified by "Scsi" in the device path A SAS drive in HBA mode is
identified by "SAS" in the device path.
NOTE:
Unlike parallel SCSI, you cannot correlate UEFI device paths to internal SAS disk drive bays with
SAS regardless of RAID/HBA mode. The UEFI device paths currently do not contain any
information that could be used to determine the physical location of the drives.
Drive paths in UEFI 191
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