Digital Equipment DECserver 90M, Owner'S Manual

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2–10 DECserver 90M Owner’s Manual
2.3 Loading the DECserver Network Access Software
Before you load the software, optionally attach a terminal to the console port.
The DECserver 90M displays status messages on the console terminal while the
boot sequence is running. Status messages indicate the Ethernet address of the
DECserver 90M, the name of the load image it is looking for, and the current
stage of the boot process.
2.3.1 Booting From Flash RAM
Once the self-tests are complete, the DECserver 90M checks for Flash RAM. If
Flash RAM is present, the DECserver 90M begins the boot sequence to load the
software from Flash RAM. Port Activity LED 4 goes on to indicate a Flash RAM
boot sequence is in progress. A typical Flash RAM load takes about 10 seconds.
If you want to abort a boot from Flash RAM, it is only during these 10 seconds
when the software is loading that you can abort the Flash RAM load by pressing
the Reset-to-Factory button until Port Activity LED 4 blinks.
2.3.2 Booting From the Network
If you do not have Flash RAM or the correct image is not found in Flash RAM,
the DECserver 90M proceeds to perform a network load. When you start the boot
process, the Network OK LED blinks continuously and the system OK LED re-
mains on indicating that the DECserver 90M is attempting to load the software
from the network.
During the network boot sequence, the DECserver 90M searches for a load host.
The DECserver 90M tries both MOP and BOOTP protocols in a factory-defined
order. The boot sequence includes a wait period after passing through all the boot
protocols. Once the DECserver 90M finds a load host, it records the protocol and
load host in its permanent database. The software is then downline loaded from
the load host.
Port Activity LEDs 6, 7, or 8 go on to indicate which protocol the DECserver
90M is using to downline load the software. Port Activity LED 5 goes on to indi-
cate that all attempts to find a load host have failed and that the DECserver 90M
will remain in a wait state for a designated period of time before trying again.
Port Activity LED 4 goes on to indicate the software is being booted from Flash
RAM (refer to Table 2–1).