Upgrading flash on a 3845 - which files do I need?

Answered Question
Jul 4th, 2010

I've run out of room for two IOSes on the puny 64MB CF card that came with our 3845. Couldn't find any info on cisco.com about upgrading flash:/, so I have several larger CF cards lying around and I assume they will work after I put them in the router and reformat them.

Besides the IOS image, which files do I need to save on the new drive? All these tar files are for the HTML interface, I presume, so I don't need them? The config is saved in nvram, which I assume is NOT on the CF card.

Directory of flash:/

    1  -rw-        4301  Oct 19 2009 21:03:50 -07:00  flaky-config
    2  -rw-      818176  Jan 26 2008 03:39:56 -08:00  common.tar
    3  -rw-      741376  Jan 26 2008 03:40:04 -08:00  es.tar
    4  -rw-       93095  Jan 26 2008 03:40:08 -08:00  attack-drop.sdf
    5  -rw-        1038  Jan 26 2008 03:40:14 -08:00  home.shtml
    6  -rw-     1198080  Jan 26 2008 03:40:22 -08:00  ips.tar
    7  -rw-      113152  Jan 26 2008 03:40:26 -08:00  home.tar
    8  -rw-     3029504  Jan 26 2008 03:40:40 -08:00  sdm.tar
    9  -rw-        1651  Jan 26 2008 03:40:46 -08:00  sdmconfig-38xx.cfg
   10  -rw-    33676960  Mar 18 2009 10:29:34 -07:00  c3845-ipbasek9-mz.124-22.T.bin
   11  -rw-      245911  May 18 2010 23:22:46 -07:00  crashinfo_20100518-062246

A Subquestion: Is it safe to remove the CF card and insert another while the router is running?

I know I could delete the current IOS image on flash:/ and have enough space, but that is living too dangerously.

Thanks in advance,

-Wiley Sanders

St Marys College of CA

http://wsanders.net

I have this problem too.
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Correct Answer by Leo Laohoo about 6 years 5 months ago

so I have several larger CF cards lying around and I assume they will work after I put them in the router

Maximum 2Gb.
Correct Answer by Paolo Bevilacqua about 6 years 5 months ago

You don't need any beside IOS image.

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Correct Answer
Leo Laohoo Sun, 07/04/2010 - 15:12

so I have several larger CF cards lying around and I assume they will work after I put them in the router

Maximum 2Gb.
wsanders1 Sun, 07/11/2010 - 10:57

Thanks to all who replied/ The old "SanDisk Ultra II" card from my old dead digital camera works perfectly.

The CF card was swapped out with the router active, but no one logged in, then reformatted. The manual exhorts one to shut down all "network connections" before swapping out the card, but presumably if no one is logged in the filesystem is not "open" so thee is minimal risk.

-w

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