cisco-1760- IOS issue - weird

subra4u · ‎01-14-2009

Hi,

We are trying to fix a cisco 1760 router which works with only c1700-y-mz.123-16.bin and not with any other images.

Please find the error message below:

C1700 platform with 65536 Kbytes of main memory

program load complete, entry point: 0x80008000, size: 0x9a941c

Self decompressing the image : ############################################################################################################################################################### [OK]

Error : uncompressed image checksum is incorrect 0xD0526466

Expected a checksum of 0xD0790DB0

*** System received a Software forced crash ***

signal= 0x17, code= 0x9, context= 0x8000c2f4

PC = 0x0, Vector = 0x0, SP = 0x0

Ã½

System Bootstrap, Version 12.2(7r)XM2, RELEASE SOFTWARE (fc1)

TAC Support: http://www.cisco.com/tac

C1700 platform with 65536 Kbytes of main memory

program load complete, entry point: 0x80008000, size: 0x9a941c

Self decompressing the image : ############################################################################################################################################################### [OK]

Error : uncompressed image checksum is incorrect 0xD0526466

Expected a checksum of 0xD0790DB0

*** System received a Software forced crash ***

signal= 0x17, code= 0x9, context= 0x8000c2f4

PC = 0x0, Vector = 0x0, SP = 0x0

Ã½

System Bootstrap, Version 12.2(7r)XM2, RELEASE SOFTWARE (fc1)

TAC Support: http://www.cisco.com/tac

C1700 platform with 65536 Kbytes of main memory

program load complete, entry point: 0x80008000, size: 0x9a941c

Self decompressing the image : ############################################################################################################################################################### [OK]

Error : uncompressed image checksum is incorrect 0xD0526466

Expected a checksum of 0xD0790DB0

*** System received a Software forced crash ***

signal= 0x17, code= 0x9, context= 0x8000c2f4

PC = 0x0, Vector = 0x0, SP = 0x0

Ã½

System Bootstrap, Version 12.2(7r)XM2, RELEASE SOFTWARE (fc1)

TAC Support: http://www.cisco.com/tac

C1700 platform with 65536 Kbytes of main memory

rommon 1 >

also find the techsupport in the attachment. what could be wrong. please give some inputs. Techsupport in the attachment. We tried with different ios image sources and different tftp servers. still no luck.

Thanks

subra

Richard Burts · ‎01-14-2009

subramania

I am confused about this post. You begin by saying:"trying to fix a cisco 1760 router which works with only c1700-y-mz.123-16.bin and not with any other images". But the show tech that you attach is clearly a 1760 running a different IOS version:

System image file is "flash:c1700-k9o3sy7-mz.123-23.bin. So what is going on?

Part of what you post is a router attempting to boot and having an error. It decompresses the image and detects that the checksum is invalid. The invalid checksum is frequently the result of an error in attempting to copy the image into flash. I would suggest that you delete that image that is causing problems and attempt a new copy of the image file.

HTH

Rick

HTH

Rick

subra4u · ‎01-14-2009

Hi Rick,

Thanks for the response. We tried

1. deleting the files in the flash using erase

2. then using tftpdnld -r get the image on to the router and fire it up.

3. now copy the actual image which we want to run on the router to the flash and reload.

then it fails. it works with only one image. we cant think of any other options here. any luck is greatly appreciated.

thanks

subra