I would compare your downloaded image against the checksum (MD5, BSD, etc) posted on CCO. That would at least tell you if your image is corrupt or not. Then you could try copying the file over another way.
HTH, Nick -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of kevhed Sent: Wednesday, June 05, 2002 1:10 PM To: [EMAIL PROTECTED] Subject: Checksum failure [7:45856] Looking for some help. I'm trying to download (tftp) a new ios image on my 2503 and after repeated attempts, I continually get a checksum error after each download. I've changed the config-register to 0x2101 so that the flash will switch to Read/Write prior to downloading. I've tried 3 separate ios images from cisco and here's what I get after each download: t(boot)#copy tftp flash System flash directory: File Length Name/status 1 8133708 c2500-js-l.112-26d.bin [invalid checksum] [8133772 bytes used, 254836 available, 8388608 total] Address or name of remote host [255.255.255.255]? 10.1.1.1 Source file name? c2500-js-l.112-21.bin Destination file name [c2500-js-l.112-21.bin]? Accessing file 'c2500-js-l.112-21.bin' on 10.1.1.1... Loading c2500-js-l.112-21.bin from 10.1.1.1 (via Ethernet0): ! [OK] Erase flash device before writing? [confirm] Flash contains files. Are you sure you want to erase? [confirm] Copy 'c2500-js-l.112-21.bin' from server as 'c2500-js-l.112-21.bin' into Flash WITH erase? [yes/no]yes Erasing device... eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee ...erased Loading c2500-js-l.112-21.bin from 10.1.1.1 (via Ethernet0): !!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!! !!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!! !!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!! !!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!! !!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!! !!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!! !!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!! !!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!! !!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!! !!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!! !!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!! !!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!! !!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!! !!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!! !!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!! !!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!! !!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!! !!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!! !!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!! !!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! [OK - 8126256/8388608 bytes] COPY: Text checksum verification failure TFTP from 10.1.1.1 failed/aborted Verifying checksum... invalid (expected 0x2B4D, computed 0x294F) Flash copy took 0:04:21 [hh:mm:ss] t(boot)# Thx in advance. Any help is appreciated. -- Kevin Keay (N+,CNE,CCSE,CCDP,CCNP, CISSP) Sr. Network Specialist Ondeo-Nalco One Ondeo-Nalco Center Naperville, IL 60563 (630) 305-2557 Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=45868&t=45856 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
