Flash Card

Unanswered Question
Jul 23rd, 2008

Good day. On 1800 series routers..is the configuration saved on the removable flash card? When issuing wr mem, is this saved on the flash card? Is nvram a different type of memory? Thanks

I have this problem too.
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Richard Burts Wed, 07/23/2008 - 09:41


Yes NVRAM is a different kind of memory from flash. There is an option to save the config onto flash. But by default the config goes to starrtup-config in NVRAM.



danny9797 Wed, 07/23/2008 - 09:53

Thanks for the response,

Does the card have any other responsiblities other than an alternative option to save the config? When saving the configs to the card, is this used for backup purposes b/c the cisco will boot back up by default from nvram, correct?


Richard Burts Wed, 07/23/2008 - 10:53


The flash card normally has these responsibilities:

1) storage of the IOS image file.

2) storage of crashinfo files if the router has crashed and needed to create crashinfo.

In my experience if you use the option to copy the config to flash then it also causes the router to boot from the config in flash (rather than the config in NVRAM). You are correct that the default is to boot using the startup-config in NVRAM. But when you configure the router to copy the config to flash the router also changes the default and sets the option to boot the config in flash.




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