Get Bios Boot Info
更新时间： 2026/08/06
在Gitcode上查看源码Get Bios Boot Info
Change History
| openUBMC Version | Revision Date | Description |
|---|---|---|
| 25.06 | 2025/06/26 | Initial draft: add command details |
Basic Information
Function Description
Obtains BIOS information.
Privilege
Command Information
Request Information
| Byte | Data Field |
|---|---|
| NetFn | 30h |
| CMD | 92h |
| 1:3 | Manufacturer ID, LS Byte first. The length is fixed to three bytes. For example, if the vendor ID is 2011 and the corresponding hexadecimal value is 0x0007DB, the first byte is DBh, the second byte is 07h, and the third byte is 00h. |
| 4 | Subcommand.Subcommand=5Ch |
| 5 | BIOS ID: This parameter is reserved for multi-host scenarios. In single-host scenarios, this parameter has a fixed value of 0. |
| 6 | Type of the obtained startup information: 1: start position StartOption 2: validity flag of the start position StartOptionFlag 3: flag bit of the BIOS full print switch BiosPrintFlag 4: whether to enable the startup mode BiosBootModeSw 5: boot mode BiosBootMode. This command is used to set the UEFI and Legacy modes for x86 servers but not for ARM servers (fixed UEFI). 6: BIOS registration file version number RegistryVersion 7: whether the BIOS supports the configuration file in JSON format BiosJsonFlag 8: system startup phase SystemStartupState 9: extended flag of the start position validity StartOptionFlagExt 10: specifies whether to display the boot mode. BiosBootModeSwEnable: The value 0 indicates that the boot mode is not displayed, and the value 1 indicates that the boot mode is displayed. |
Response Information
| Byte | Data Field |
|---|---|
| 1 | Completion Code |
| 2:4 | Manufacturer ID, LS Byte first. The length is fixed to three bytes. For example, if the vendor ID is 2011 and the corresponding hexadecimal value is 0x0007DB, the first byte is DBh, the second byte is 07h, and the third byte is 00h. |
| 5 | Length N |
| 6:5+N | Content |
Command Example
Request:
bash
ipmicmd -k "0f 00 MM NN" smi 0Response:
text
0f MM NN