From: Snow, Mark (Mark.Snow@xxxxxxxxxxx)
Date: Fri Jul 19 2002 - 15:33:59 GMT-3
I had the same problem with some 12.2 code that I tried to put on one of my
2500 series routers. But the same image worked on another 2500. So I
eventually just got another version of the IOS and it worked fine on all. I
will check my home lab, and return you the version of code.
Cheers,
Mark Snow
-----Original Message-----
From: Bhisham Bajaj [mailto:bhishambajaj@yahoo.com]
Sent: Friday, July 19, 2002 2:19 PM
To: ccielab@groupstudy.com
Subject: invalid checksum
I have a 2509 router with 8mb flash
So to run the 12.1 ios I got another 8 MB flash
Now my router has 16mb (8+8)
I have downloaded a ios c2500-js-l.121-2.T.bin
Release -------------------12.1
Description-------------- ENTERPRISE PLUS
Size ----------------------14553920
BSD Checksum-------- 59411
Router Checksum------ 0x8da5
MD5
----------------------c792d6e494e863ca2ba97438cdf90b9c
Date Published: ----------22-MAY-2000
Now when I put this file in my router it shows that
the file size is the same as what is on cisco site
But it gives me a invalid checksum
I was just thinking has this got to do any thing with
having two flash chips (8+8)
I have not made any partition and other ios do not
give me this problem but the other ios is just 7 Mb
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!
[OK - 14553920/16777216 bytes]
Verifying checksum... invalid (expected 0x8DA5,
computed 0x1402)
Flash copy took 0:09:35 [hh:mm:ss]
R1(boot)#sh flash
System flash directory:
File Length Name/status
1 14553920 c2500-js-l.121-2.T.bin [invalid
checksum]
[14553984 bytes used, 2223232 available, 16777216
total]
16384K bytes of processor board System flash
(Read/Write)
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