AP P E N D I X J
Boot Commands
The BootModule AT commands execute from within the router’s bootup software, when debug mode is selected before the main router firmware is started. When you start up your ZyXEL Device, you are given a choice to go into debug mode by pressing a key at the prompt shown in the following screen. In debug mode you have access to a series of boot module commands, for example ATUR (for uploading firmware) and ATLC (for uploading the configuration file). These are already discussed in the Firmware and Configuration File Maintenance chapter.
Figure 261 Option to Enter Debug Mode
Bootbase Version: V1.02 08/08/2001 15:40:50
RAM: Size = 16384 Kbytes
DRAM Post: Testing: 16384K OK
FLASH: Intel 16M
RAS Version: V3.50(WB.0)b3 08/08/2001 16:21:27 Press any key to enter debug mode within 3 seconds.
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Enter ATHE to view all available ZyXEL Device boot module commands as shown in the next screen. ATBAx allows you to change the console port speed. The x denotes the number preceding the colon to give the console port speed following the colon in the list of numbers that follows; for example ATBA3 will give a console port speed of 9.6 Kbps. ATSE displays the seed that is used to generate a password to turn on the debug flag in the firmware. The ATSH command shows product related information such as boot module version, vendor name, product model, RAS code revision, etc. ATGO allows you to continue booting the system. Most other commands aid in advanced troubleshooting and should only be used by qualified engineers.
Appendix J Boot Commands | 425 |