Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

pre and post compression image sizes disagree

When power on the cisco 2851 output of the error message:

System Bootstrap, Version 12.4(13r)T11, RELEASE SOFTWARE (fc1)                                                              
Technical Support: http://www.cisco.com/techsupport                                                   
Copyright (c) 2009 by cisco Systems, Inc.                                         

Initializing memory for ECC                           
..  
c2851 platform with 524288 Kbytes of main memory                                                
Main memory is configured to 64 bit mode with ECC enabled                                                         


Readonly ROMMON initialized                           

program load complete, entry point: 0x8000f000, size: 0x2bbf1c4                                                               
Self decompressing the image : #################################################                                                                                
#############################################                                            
################################################################################                                                                                
##################################################### [OK]                                                          

Error : pre and post compression image sizes disagree                                                     

*** System received a Software forced crash ***                                               
signal= 0x17, code= 0x8, context= 0x800259c0                                            
PC = 0x8000f0d4, Cause = 0x20, Status Reg = 0x3040a803                                                      
c2851 platform with 524288 Kbytes of main memory                                                
Main memory is configured to 64 bit mode with ECC enabled                                                         


Readonly ROMMON initialized                           

program load complete, entry point: 0                                    
Self decompressing the image : #################################################                                                                                
################################################################################                                                                                
################################################################################                                                                                
##################################################### [OK]                                                          

Error : uncompressed image checksum is incorrect 0x52F70850                                                           
        Expected a checksum of 0xEF207974                                         

*** System received a Software forced crash ***                                               
signal= 0x17, code= 0x9, context= 0x800259c0                                            
PC = 0x8000f0d4, Cause = 0x20, Status Reg = 0x3040a803                                                      
c2851 platform with 524288 Kbytes of main memory                                                
Main memory is configured to 64 bit mode with ECC enabled                                                         


Readonly ROMMON initialized                           

program load complete, entry point: 0x8000f000, size: 0x2bbf1c4                                                               
Self decompressing the image : #################################################                                                                                
################################################################################                                                                                
################################################################################                                                                                
##################################################### [OK]                                                          

Error : pre and post compression image sizes disagree                                                     

*** System received a Software forced crash ***                                               
signal= 0x17, code= 0x8, context= 0x800259c0                                            
PC = 0x8000f0d4, Cause = 0x20, Status Reg = 0x3040a803                                                      
c2851 platform with 524288 Kbytes of main memory                                                
Main memory is configured to 64 bit mode with ECC enabled                       


Readonly ROMMON initialized

program load complete, entry point: 0x8000f000, size: 0x2bbf1c4
Self decompressing the image : #################################################
################################################################################
################################################################################
##################################################### [OK]

Error : pre and post compression image sizes disagree

*** System received a Software forced crash ***
signal= 0x17, code= 0x8, context= 0x800259c0
PC = 0x8000f0d4, Cause = 0x20, Status Reg = 0x3040a803
c2851 platform with 524288 Kbytes of main memory
Main memory is configured to 64 bit mode with ECC enabled


Readonly ROMMON initialized
Entering rommon> prompt after several failed attempts to boot an IOS image.
Please check your internal/external flash drives for the correct IOS image
and issue 'reset' at the rommon> prompt to re-try the boot process.
rommon 1 >

 

I have reed in oter post the possible solutions, but let me first copy the contents of the CF.

I can read the contents of the CF with the command dir flash:

I have access only with console cable and do not know how to do.

 

1 REPLY
Hall of Fame Super Gold

but let me first copy the

but let me first copy the contents of the CF

What you're seeing is termed as a boot-crash-loop.  The router boots up, something causes it to crash, writes the crashinfo into the CF and boots (and loops).  Now the third process is "writes the crashinfo into the CF".  But if the CF is full of crashinfo files, this is also another way of crashing a router bootup process.  

 

So you'll need to know what file to copy and this is mostly the IOS itself.  You can copy the IOS by ejecting the CF and copying it using a multi-card reader plugged to your PC.  

 

Once you've copied the file, check the contents of the CF and remove some of the oldest crashinfo files/subdirectory.  I didn't say remove all.  

 

Next, if your router has NME/HWIC modules, eject all of these and boot up the router.  The object of this last exercise is to determine what is causing the router to crash.  

170
Views
0
Helpful
1
Replies
CreatePlease login to create content