Junior science refresher magazine
Junior science refresher magazine published this article page no 33 The most common reason for a router not to have a startup configuration file is that the files been erased. We will now erase this file on our 2500 router. As youll see the Cisco router warns us about erasing NVRAM and makes us confirm this choice which it acknowledges with the OK message. R1#write erase Erasing the nvram filesystem will remove all files! Continue [confirm] [OK] Erase of nvram: complete R1# The router will now be reloaded. There is a slightly misleading message displayed during reboot: R1#reload Proceed with reload [confirm] 00:15:21: %SYS-5-RELOAD: Reload requested System Bootstrap Version 11.0(10c)XB1 PLATFORM SPECIFIC RELEASE SOFTWARE (fc1) Copyright (c) 1986-1997 by cisco Systems 2500 processor with 14336 Kbytes of main memory Notice: NVRAM invalid possibly due to write erase. That notice doesnt mean the NVRAM is corrupt or unusable; this message means the NVRAM doesnt have a startup configuration file. The router will continue to boot and finally present you with this prompt: --- System Configuration Dialog --- Would you like to enter the initial configuration dialog [yes/no]: Almost every WAN engineer I know answers no to this question because Setup Mode is a long clumsy way to set up a router (in my humble opinion) bright group of publications junior science refresher.
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