System information

Changing the Boot Image
412 AlterPath OnBoard Administrator’s Guide
Changing the Boot Image in U-Boot Monitor Mode
You can access U-Boot monitor mode in one of the following two ways:
• During boot, when the “Hit any key to stop autoboot” prompt appears,
pressing any key before the timer expires brings the OnBoard to U-Boot
monitor mode.
• If boot fails, the OnBoard automatically enters U-Boot monitor mode.
The U-Boot hw_boot command boots from either the first or second image
according to the value of the currentimage environment variable. You can
use the following procedures to change which image is used for booting.
T To Boot in U-Boot Monitor Mode
1. Open a terminal connection to the console port, and log in as root.
2. Enter the reboot command.
3. During boot, when the “Hit any key to stop autoboot” prompt appears,
press any key before the time elapses to stop the boot.
The U-Boot monitor prompt appears:
4. Enter help to see a list of supported commands.
To Boot in U-Boot Monitor Mode Page 412
To Boot From an Alternate Image in U-Boot Monitor Mode Page 413
To Boot From an Alternate Image Using cycli Page 410
Changing the Boot Image in U-Boot Monitor Mode Page 412
To Boot in Single User Mode From U-Boot Monitor Mode Page 413
# reboot
=>
=> help