How The Router Starts Up - Allied Telesis AR410 User Manual

124

How the Router Starts Up

The sequence of operations that the router performs when it boots are:
When the router boots, the following sequence of operations is performed:
1. Perform startup self tests.
2. Perform the install override option.
3. Load the FLASH boot release as the INSTALL boot.
4. Inspect and check INSTALL information.
5. Load the required release as the main boot.
6. Start the router.
7. Execute the boot script, if one has been configured.
If a terminal is connected to asyn0, a series of status and progress messages
similar to those shown in Figure 23 are displayed during the startup process.
Figure 23: router startup messages.
INFO: Self tests beginning.
INFO: RAM test beginning.
PASS: RAM test, 4096k bytes found.
INFO: BBR tests beginning.
PASS: BBR test, 128k bytes found.
PASS: BBR test. Battery OK.
INFO: Self tests complete
INFO: Downloading router software.
Force EPROM download (Y) ?
INFO: Initial download succeeded
INFO: Executing configuration script <boot.cfg>
INFO: Router startup complete
Manager >
The startup self tests check the basic operation of the router. If your router
passes these tests the router should be able to at least proceed far enough to
perform the load of the FLASH boot release and to start operating.
The install override option is designed to allow a mandatory router boot from
the FLASH boot release. The message:
Force EPROM download (Y)?
is displayed on the terminal connected to asyn0 and the router pauses. If you
do not press a key within a few seconds, the startup process will continue and
all steps in the sequence are executed. If the [Y], [S] or [Ctrl/D] key on the
terminal are pressed immediately after the message is displayed, you can alter
the router startup process (Table 15 on page 124).
Table 15: router startup sequence keystrokes.
Pressing key... Forces the router to...
Y Load the FLASH boot release, with no patch, and skip straight to step 6.
S Start with the default configuration. Any boot script configuration is
ignored.
[Ctrl/D] Enter diagnostics mode.
AR400 Series Router User Guide
Software Release 2.7.1
C613-02021-00 REV F