Chapter 2 Powering On and Configuring BIOS Settings 2-57
When the message, Booting linux in 2 seconds... is displayed, during
ILOM initial boot, type xyzzy to enter the U-Boot command interpreter.
Note – The characters typed does not echo. Cutting and pasting the characters
improves the chance of success. You might try cycling power to the system and
entering xyzzy several times.
3. Disable automatic reboot.
Set the uboot environment variable, bootretry, to -1 to temporarily disable
automatic reboot:
set bootretry -1
4. Configure to not save the current configuration:
set preserve_conf no
5. Save your current environment:
saveenv
6. Reboot:
boot
2.5 Using the Force-Recovery Jumper P5 or
J13
The names and locations of this jumper differ between the Sun Fire X4100/X4200 and
the X4100 M2/X4200 M2 servers:
■ In Sun Fire X4100/X4200 servers this jumper is P5. See FIGURE 2-8 for the location.
■ In Sun Fire X4100 M2/X4200 M2 servers this is jumper J13. See FIGURE 2-9 for the
location.
You can use this jumper to force the server to flash a new BIOS in the case of a
system freeze. For example, if the system freezes after an ILOM SP firmware/BIOS
update, use this procedure to force the server to look for the new BIOS.
1. Shut down the server to standby power mode by using a nonconducting pointer
or stylus to press and release the recessed Power button on the front panel. See
Section 2.2, “Powering Off the Server” on page 2-3.
2. Disconnect the power cords from the server.
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