Re: Two Flash chips in 2500
- From: "Phillip Remaker" <rekamerpillihp-usenet1@xxxxxxxxx>
- Date: Mon, 15 May 2006 00:33:22 GMT
"Howard Huntley" <hhuntleyjr@xxxxxxxxxxx> wrote in message
news:dqid629sommerqpt74nrc33m3pih7qm0q8@xxxxxxxxxx
I recently installed a second Flash chips in a 2500. When look in It
shows the two chips as separate memory banks. One is read only and the
other as read and write. What is going on with this?? Do I need to
change anything in the router or the chips??
You are running as "dual bank flash."
The 2500 actually runs the code from the flash. For the flash bank holding
the CURRENLY RUNNING code, it must be read only (can't rewrite the code you
are running).
If you boot to an image in the other bank, that bank will become read only
and the other will become read write.
Exepcted behavior for added flash - it is treated as a new bank.
If you want to set the pair of flash SIMMs to be a single large partition,
you will need to boot to the ROM image and repartition the flash to one
large bank. The only way to rewrite the flash is to boot to the ROM version
of the IOS. IOS has a feature called "Flash Boot Helper" that does all of
the magic dance to fix that all up.
See if
http://www.cisco.com/en/US/products/sw/iosswrel/ps1835/products_configuration_guide_chapter09186a00800ca737.html
helps.
.
- References:
- Two Flash chips in 2500
- From: Howard Huntley
- Two Flash chips in 2500
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