From: kym blair (kymblair@xxxxxxxxxxx)
Date: Sat Jan 05 2002 - 02:40:16 GMT-3
Ola,
Since your flash sticks are already corrupted, you can't lose anything by
trying various things. Recommend you start by verifying you really have two
8MB sticks (you may have a 4MB and an 8MB and it will show up as 16MB, and
work if the IOS you wanted was under 12MB, which your's is not). To do
this:
1) set your config-reg to 0x41
2) shutdown and remove one stick of flash
3) powerup (boots from bootflash)
4) "enable" and "show flash"
5) [OPTIONAL] erase flash
6) shutdown; swap sticks; repeat steps 3-5
If both sticks really are 8MB, install them both and leave the config-reg at
0x41. Now check that you have one 16MB partition (vice two 8MB partitions):
8) powerup your sick router; "enable" and "show version"
If the "sh ver" lists two partitions, do:
9) "config t" and "no partition flash"
Now you for sure have a 16MB partition, and your config-reg is still 0x41.
If you have another 2500 router that already has the 12.1.6 IOS you want (by
the way, you may prefer a later version because they are more stable),
connect the ethernet ports back-to-back with a Cat.5 cross-over cord (and of
course configure IP addresses within the same subnet and "no shut" the
ethernet interfaces), and configure the other router as the tftp-server:
7) other router: tftp-server flash:c2500-xxxx-xxx-121-6.bin
8) sick router: "copy tftp flash"
If you don't have another 2500 router with this image, then still load from
your PC-based tftp server via your ethernet port (as opposed to xmodem or
other method). Cisco's tftpserver aplication works great if you haven't
messed with the image (i.e., haven't tried to view the image with MS Word or
some other application).
Good luck. Kym
>From: David L Stewart <D.Stewart@mail.UTexas.edu>
>Reply-To: David L Stewart <D.Stewart@mail.UTexas.edu>
>To: "Ola Aiyegbusi" <ola@keynets.com>, "Phil"
><ciscostudent1@yahoo.com.br>, ccielab@groupstudy.com
>Subject: Re: IOS 12.1 won't fit into 2500 flash
>Date: Fri, 04 Jan 2002 18:18:00 -0600
>
>When downloading an IOS image with tftp, always make sure
>it says OK at the end when it checks the checksum.
>
>You probably have network problems. Either use a cross-
>over ethernet cable or someway isolate your 2500 and
>tftp server.
>
>Also, the cisco tftp server sucks. It can never seem to
>complete a large IOS transfer. Use Pumpkin or Solarwinds,
>those two are the best and they are free. This is an
>absolute must if you do much with over 10 MB images.
>
>Dave
>
>At 09:11 AM 1/4/2002, Ola Aiyegbusi wrote:
>>Thanks for the help.
>> ----- Original Message -----
>> From: Phil
>> To: DOLLING,ERNESTO (HP-Argentina,ex1) ; 'Ola Aiyegbusi ' ;
>>'ccielab@groupstudy.com'
>> Sent: Friday, January 04, 2002 10:01 AM
>> Subject: RE: IOS 12.1 won't fit into 2500 flash
>>
>>
>> Ernesto,
>>
>> Try, also, downloading a different image to the router before you touch
>>the
>>flash sticks.
>>
>> Phil.
>>
>>
>>
>>
>>
>> "DOLLING,ERNESTO (HP-Argentina,ex1)" <ernesto_dolling@hp.com>
>>escreveu:
>>
>> Are you getting problems (eg. "!!...!!") while transfering the
>>image??
>> Try using "ftp" instead of tftp to download the image. Check the CCO
>>for
>> the commands to allow that.
>> (or simply get a tftp trasnfer without any errors, remember tftp is
>>udp).
>>
>> Hope this helps,
>> Ernesto.
>>
>> -----Original Message-----
>> From: Ola Aiyegbusi
>> To: ccielab@groupstudy.com
>> Sent: 1/4/02 7:43 AM
>> Subject: IOS 12.1 won't fit into 2500 flash
>>
>> All,
>> I keep trying to download IOS 12.1.6 to a 2500's flash via tftp. It
>>has
>> 16F/16D (sh version states "16384K.....of flash). When it finishes
>>and I
>> do a
>> "show flash", the correct file shows up but with "invalid checksum".
>> Below is
>> the output from "sh flash":
>>
>> System flash directory:
>> File Length Name/status
>> 1 15262708 c2500-js56i-l.121-6.bin [invalid checksum]
>> [15262772 bytes used, 1514444 available, 16777216 total]
>> 16384K bytes of processor board System flash (Read/Write)
>>
>> I'm not sure what to make of it. The amount used is less than 16Mb
>>but
>> the
>> total is more. I've searched CCO and can't find anything. If anyone
>>has
>> an
>> explanation, please help. Thanks
>>
>> Ola Aiyegbusi
>> Turnkey Networks, Inc.
>>-----------------------------------------------------------------------------
>>-
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>> Tenha seu lugar na Web. Construa hoje mesmo sua home page no Yahoo!
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