So let’s say we went through that first step, load that first file in Flash, great. But if it’s 1, immediately look in Flash and find the very first IOS image in Flash and load it. If it’s 2, look at NVRAM and examine the boot system commands sequentially. And when the router examines it, if it’s 0, what does that mean? Load to the ROM monitor, or ROMMON, mode. What’s our default configuration register value? If it hasn’t been changed, it’s 2102, but that has to be examined. Here is a flowchart that visually represents everything we just discussed.
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