Sun Microsystems Solaris 7 11/99, Руководство по аппаратной платформе

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Chapter 4 Updating the Flash PROM on the Ultra 1, Ultra 2, Ultra 450, and Sun Enterprise 450 Systems 71
c. Power off the system.
d. Open the system unit (refer to the installation or service manual for your
system).
e. Attach a wrist strap properly (refer to the installation or service manual for
your system).
f. Reset the J2003 write-enable/protect jumper to the write-protect position. In the
write-protect position pins 1 and 2 are jumpered (see
FIGURE 4-1
,
FIGURE 4-2
,
FIGURE 4-5
, and
TABLE 4-4
). You may need to remove a plug-in card from the
system before resetting the jumper if the card is covering the jumper. Pin 1 is
noted by an asterisk (*).
FIGURE 4-5
Moving the Write-Protect/Enable Jumper Back to the Write-Protect Position
g. If you removed a plug-in card from the system before changing the jumper,
replace the card now.
h. Remove your wrist strap and replace the system access cover.
i. Turn the power on to the system.
9. If you have a Sun Enterprise 450 system or a Sun Ultra 450 workstation, turn the
keyswitch to the Standby position, wait a few seconds, and then power on again.
This power-cycling flushes any old firmware code out of system memory.
Recovering From a Power Failure
During the Flash PROM Update
If the power was lost during the flash PROM update, complete the power
interruption recovery procedure for your system.
1 2 3 1 2 3
*
*
Write
enabled
Write
protected