Base Module
(Reference) System Status Transitions and System Control Commands
DN/DP
| DF | (only trigger) |
|
| |
|
| PC |
DC OFF |
| Ready |
|
| SW running |
| UP/PC | RS |
|
|
DN/DF | DC ON | UP/PC/RS |
| ||
|
| |
| Not running |
|
Figure. System Status Transitions and System Control Commands
Note) When the UB command is used for system boot, the system always halts at the EFI Shell screen. Operation cannot therefore be continued if the system is started and stopped using, for example, the automatic power control feature, or rebooted following error detection. If the system halts at the EFI Shell screen, the OS cannot boot. Be sure to use the UP command to boot the OS. When you use the UB command for changing the EFI settings, shut down the system and then reboot it with the UP command.
