cme-full- was extracted to 2811' flash, invalid checksum

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Mar 12th, 2008
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some files are reported invalid checksum.

tried extract the tar file from usb flash and ftp server, same problem. the flash size is 128M.

Please advise. Thx.


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chrclark Wed, 03/12/2008 - 13:06
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Make sure you have enough free disk space in flash before you begin the extract.

I don't see posted to CCO. Where did you get this image from?


chrclark Wed, 03/12/2008 - 13:38
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I downloaded and extracted that file. It has a very different structure than the old CME files have. Is this a new install or and upgrade to a previous version? If this is an upgrade, then I would suggest that you delete everything except for the IOS version ( including directories ) before you begin.

Also, I am not sure about the format of your flash, but you might try the squeeeze command on it after deleting any old files and before putting new files on there.

If this does not resolve it, please include a "show file systems" output and a "show version".

chrclark Wed, 03/12/2008 - 13:44
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Also -- what IOS version are you running ?

xiaoliangyue Wed, 03/12/2008 - 13:47
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It's a brand new install. I actually erased the flash at the beginning. squeezed it once.

Router#show file systems

File Systems:

Size(b) Free(b) Type Flags Prefixes

- - opaque rw archive:

- - opaque rw system:

- - opaque rw tmpsys:

- - opaque rw null:

- - network rw tftp:

- - opaque ro xmodem:

- - opaque ro ymodem:

* 128450556 73002848 flash rw flash:

245752 238201 nvram rw nvram:

- - opaque wo syslog:

- - network rw rcp:

- - network rw pram:

- - network rw ftp:

- - network rw http:

- - network rw scp:

- - opaque ro tar:

- - network rw https:

- - opaque ro cns:

- - usbflash rw usbflash0:

Router#show version

Cisco IOS Software, 2800 Software (C2800NM-IPVOICEK9-M), Version 12.4(11)XW6, RELEASE SOFTWARE (fc2)

Technical Support:

Copyright (c) 1986-2008 by Cisco Systems, Inc.

Compiled Wed 13-Feb-08 19:00 by prod_rel_team

ROM: System Bootstrap, Version 12.4(13r)T, RELEASE SOFTWARE (fc1)

Router uptime is 2 hours, 13 minutes

System returned to ROM by reload at 18:32:43 UTC Wed Mar 12 2008

System image file is "flash:c2800nm-ipvoicek9-mz.124-11.XW6.bin"

This product contains cryptographic features and is subject to United

States and local country laws governing import, export, transfer and

use. Delivery of Cisco cryptographic products does not imply

third-party authority to import, export, distribute or use encryption.

Importers, exporters, distributors and users are responsible for

compliance with U.S. and local country laws. By using this product you

agree to comply with applicable laws and regulations. If you are unable

to comply with U.S. and local laws, return this product immediately.

A summary of U.S. laws governing Cisco cryptographic products may be found at:

If you require further assistance please contact us by sending email to

[email protected].

Cisco 2811 (revision 53.50) with 251904K/10240K bytes of memory.

Processor board ID FHK1140F0V1

2 FastEthernet interfaces

2 Channelized (E1 or T1)/PRI ports

4 Voice FXO interfaces

DRAM configuration is 64 bits wide with parity enabled.

239K bytes of non-volatile configuration memory.

4030186K bytes of USB Flash usbflash0 (Read/Write)

125440K bytes of ATA CompactFlash (Read/Write)

Configuration register is 0x2102

chrclark Fri, 03/14/2008 - 05:55
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I would recommend to open a TAC case for this. You are on the leading edge of code deployment and its possible that 128MB is not enough flash. In the meanwhile, you can use something other than the full image. I would suggest you try the basic CME image instead of full.


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