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How the Switch Starts Up
The sequence of operations that the switch performs when it boots are:
1.Perform startup self tests.
2.Perform the install override option.
3.Load the EPROM release as the INSTALL boot.
4.Inspect and check INSTALL information.
5.Load the required release as the main boot.
6.Start the switch.
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 13 on page 74 are displayed during the startup process.
Figure 13: switch 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 switch. If your switch passes these tests the switch should be able to at least proceed far enough to perform the load of the EPROM release and to start operating.
The install override option is designed to allow a mandatory switch boot from the EPROM release. The message:
Force EPROM download (Y)?
is displayed on the terminal connected to asyn0 and the switch 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], [N] or [Ctrl/D] key on the terminal are pressed immediately after the message is displayed, you can alter the switch startup process (Table 7 on page 75).
Software Release 2.6.1
