From: kym blair (kymblair@xxxxxxxxxxx)
Date: Sat Jul 20 2002 - 17:58:06 GMT-3
Przemek,
I haven't seen this exact problem, so I'm not sure of the solution. If
someone knows the error codes, you can figure it out quickly. Will the
system boot if you remove the flash entirely? Or can you [BREAK]
immediately, set config-reg to 0x2141, and boot to bootrom? This might help
determine if the problem is in the flash or elsewhere.
Three ideas come to mind:
(1) Dissimilar size flash sticks -- you can use 4MB and 8MB flash together
to give you 12MB; the larger one has to be in a particular location and "sh
version" will indicate 16MB. If you swap positions, you will get an error
message.
(2) Mismatched (different manufacturer) flash, or one flash bad -- does this
router work if you install a pair of sticks from a working 2500? Be sure to
keep them in the same order. (By the way, you can also use flash taken from
a 4500/4700.)
(3) Bad dram or motherboard that cannot read your memory.
HTH, Kym
>From: Przemyslaw Karwasiecki <karwas@ifxcorp.com>
>Reply-To: Przemyslaw Karwasiecki <karwas@ifxcorp.com>
>To: kym blair <kymblair@hotmail.com>
>CC: malcolm@lanbase.com, ccielab@groupstudy.com
>Subject: Re: 2500 read only flash
>Date: 20 Jul 2002 14:51:25 -0400
>
>I have one hard cookie (c2513) here:
>
>As you can see below, it is booting from IOS Boot image
>from ROM, so flash should be RW.
>
>But is not....
>
>Also, the same flash works perfectly in other c2500 boxes...
>
>There is something I obviously miss here,
>but I have no idea what is this?
>
>Thanks,
>
>Przemek
>
>Please see attached boot messages (just after Power On)
>
>Cisco Internetwork Operating System Software
>IOS (tm) 3000 Bootstrap Software (IGS-RXBOOT), Version 10.2(8a),
>RELEASE SOFTWARE (fc1)
>Copyright (c) 1986-1995 by cisco Systems, Inc.
>Compiled Tue 24-Oct-95 15:46 by mkamson
>Image text-base: 0x01020000, data-base: 0x00001000
>
>%Error: System flash bank 0 chip 0 unknown, chip id 0x7301
>(reversed = 0xCE80)
>
>%Error: System flash bank 0 chip 1 unknown, chip id 0x101
>(reversed = 0x8080)
>
>%Error: System flash bank 0 chip 2 unknown, chip id 0x101
>(reversed = 0x8080)
>
>%Error: System flash bank 0 chip 3 unknown, chip id 0x101
>(reversed = 0x8080)
>
>%Error: System flash initialization failed
>
>cisco 2500 (68030) processor (revision M) with 14332K/2048K bytes of
>memory.
>Processor board serial number 03074019 with hardware revision 00000000
>X.25 software, Version 2.0, NET2, BFE and GOSIP compliant.
>1 Ethernet/IEEE 802.3 interface.
>1 Token Ring/IEEE 802.5 interface.
>2 Serial network interfaces.
>32K bytes of non-volatile configuration memory.
>16384K bytes of System flash (Device not programmable)
> ^^^^^^^^^^^^^^^^^^^^^^^
>
>
>
>On Sat, 2002-07-20 at 09:35, kym blair wrote:
> > Malcolm,
> >
> > The 2500 routers run the ios in flash (they do not copy it to dram), so
>the
> > flash with the running ios is read-only.
> >
> > You need to set the config register to 0x2141, "write erase" (in case
>you
> > have any bad configuration commands such as "partition flash"), and
>reload
> > (answer 'no' when you are asked if you want to save your changes before
> > reload).
> >
> > You'll boot off of bootrom rather than flash. Both sticks of flash will
>be
> > read-write. You shouldn't see a partition, but if you do just enter "no
> > partition flash".
> >
> > You can then install an ip address on your ethernet interface, install a
> > default-gateway if your tftp server is not local, copy your existing ios
> > image to tftp server, erase flash, and copy your new image from tftp
>into
> > the 16MB flash.
> >
> > Set the config-reg back to 0x2102, reload, and "copy run start". You
>should
> > be in business.
> >
> > HTH, Kym
> >
> >
> >
> > >From: "Malcolm Price" <malcolm@lanbase.com>
> > >Reply-To: "Malcolm Price" <malcolm@lanbase.com>
> > >To: <ccielab@groupstudy.com>
> > >Subject: 2500 read only flash
> > >Date: Sat, 20 Jul 2002 13:02:20 +0100
> > >
> > >Guys,
> > >
> > >I've looked on cisco.com and drawn a blank so far.
> > >
> > >I have a 2514 with two, 8mb flash modules installed. However one of
>them is
> > >set to read-only. Does anyone know how to set it back to read-write..?
> > >
> > >There is probably an obvious way but I can't seem to find it..
> > >
> > >Thanks it's appreciated.
> > >
> > >Regards,
> > >Malcolm
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