Cisco which image to boot

In this case, you probably want the router to load the newer IOS image. And it would be better still if the router would try the new image first, and revert to the old image if the first one failed to load correctly for any reason. The boot system command allows you to specify not only which IOS images to boot from, but also the order to try them in if it has trouble booting.

In the example, this router will try a succession of three different IOS images. If they all fail, it will resort to using its boot ROM image. As we noted earlier, the sequence of the boot system commands is important since the router will attempt to load the IOS images in order of entry.

This means that the only way to add a new IOS image to load is to remove all of the old boot system commands and reenter them again in the order of preference. You can remove all of the boot system commands at once with the following command:. Once the old boot system commands have been removed, you can configure a new set in whatever order you require.

Recipe 1. Table shows all of the different options for the boot system command. The last octet in the configuration register must be set to 2 , or the router will ignore the boot system commands completely. For instance, if the last octet of the configuration register is set to 1 , the router will boot from ROM and ignore the boot system commands. The config-register command allows you to set the appropriate configuration register values:.

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I have to load our image each time. The changes we make on it save, but that image does not load when the switch boots up. I have to manually go in there and load our modified image each time. That's why I'm asking, I don't know where the issue is. Usually when you make changes to a switch, you save the config; and when it reboots, it continues from where you left off. This Cisco does not do that. It loads the base image each time. Whelton Network Solutions is an IT service provider.

Purduepete said change the boot statement, save the configuration and that should sort your issue, alternatively, delete the unneeded image, I would take a copy of it via TFTP or SCP first though,. Oh I see, I didn't understand what he was saying. Sorry, it's been a very long week already. So I need to change the boot statement to boot to that image?

I think he's really meaning "configuration" and not "code", his ROMMON boot setting is wrong, he'll need to correct that to make the system boot his config.

So is that a yes or a no to my question? Thanks for your help guys, but some of this is still kind of new to me.