158
Parameter
#
Parameter Data (non-volatile unless otherwise noted)
0101b = Force boot from default CD/DVD
[2]
0110b-1110b = Reserved
1111b = Force boot from Floppy/primary removable media
[1] -
1b = Screen Blank
[0] -
1b = Lock out reset buttons
Boot flags
(semi-volatile)
[1]
(continued)
5 Data
3
[7] -
1b = Lock out (power off/ sleep request) via power button
[6:5] - Firmware (BIOS) Verbosity (Directs what appears on POST display)
00b = System default
01b = Request quiet display
10b = Request verbose display
11b = reserved
[4] -
1b = Force progress event traps. When set to 1b, the BMC transmits
PET traps for BIOS progress events to the LAN or serial/modem
destination for the session that set the flag. Since this capability uses
PET traps, this bit is ignored if for connection modes that do not support
PET such as Basic Mode and Terminal Mode
[3] -
1b = User password bypass. When set to 1b, the managed client’s BIOS
boots the system and bypasses any user or boot password that might be set
in the system
[2] -
1b = Lock sleep button. When set to 1b, directs BIOS to disable the
sleep button operation for the system, normally until the next
boot cycle
[1:0] -00b = Console redirection occurs per BIOS configuration setting
01b = Suppress (skip) console redirection if enabled
10b = Request console redirection be enabled
11b = Reserved
Boot flags
(semi-volatile)
[1]
(continued)
5 Data
4
[7:4] - Reserved
[3] - BIOS Shared Mode Override
Can be used to request BIOS to temporarily place the channel into Shared
access mode.
Per the recommendations in the IPMI specification, Shared access would cause
the baseboard serial controller to both remain enabled after POST/start of OS
boot, while also allowing the BMC to be accessible. This can be useful when
booting to an alternative device such as a Diagnostic Partition since it means the
partition can use the serial port but that communication with the BMC can remain
available if the partition software fails.
1b = Request BIOS to temporarily set the access mode for the channel
specified in parameter #6 to Shared. This is typically accomplished by
sending a Set Channel Access command to set the volatile access mode
setting in the BMC
0b = No request to BIOS to change present access mode setting
[2:0] - BIOS Mux Control Override
Can be used to request BIOS to force a particular setting of the serial/modem
mux at the conclusion of POST / start of OS boot. This override takes
precedence over the mux settings for the access mode even if the BIOS Shared
Mode Override is set.
000b = BIOS uses recommended setting of the mux at the end of POST.
001b = Requests BIOS to force mux to BMC at conclusion of POST/start of
Summary of Contents for 3250
Page 1: ...Dell TM PowerEdge TM 3250 SR870BH2 Systems Product Guide Model Code SVS ...
Page 22: ...22 ...
Page 240: ......
