10-13-2011 12:12 AM - edited 03-17-2019 10:33 PM
Dear all,
We are tried to upgrade the cucm from version 8.0 to 8.6, however, it failed and restore to 8.0 .
In the Software Installation/upgrade page, we found status: unmapped exception null
file checksum detial: file:UCSInstall_UCOS_8.6.2.10000-30.sgn.iso
MD5 Hash Value
The hardware version 7825I4 with 4G ram( 4x 1G ram), so it meet the requimrment of 8.6
Can anyone provide some suggestion for us.
Thank you,.
Ben
Solved! Go to Solution.
10-13-2011 01:55 AM
Hi
Basically on the last page of the download (where you have a list of selected files, and a 'proceed with download' option) you should see an MD5 checksum displayed. It will be a string of characters like so: 534b3054597f23071587f2a6bd17da0d
This is a checksum calculcated by Cisco on the file you are downloading. It's also usually listed in the release notes for your new release of CUCM.
You can use a free MD5 utility such as md5summer or WinMD5 to calculate the MD5 checksum for the file you have downloaded. If they do not match, then your download is corrupt and you have to download it again, then re-check.
It looks like your CUCM has checksummed the file and found it to be corrupt.
Aaron
10-13-2011 12:49 AM
Hi
Did you download the upgrade from Cisco? If so, have you checked the MD5 checksum against the one displayed when downloading the file?
If it's not a download, can you post your upgrade log file?
Aaron
10-13-2011 01:39 AM
Dear arronharrison,
Thank for your kindly reply,
It is download from cisco, but i haven't check the MD5 checksum .
Would you mind providing more information on this issue?
Thank a lot,
Ben
10-13-2011 01:55 AM
Hi
Basically on the last page of the download (where you have a list of selected files, and a 'proceed with download' option) you should see an MD5 checksum displayed. It will be a string of characters like so: 534b3054597f23071587f2a6bd17da0d
This is a checksum calculcated by Cisco on the file you are downloading. It's also usually listed in the release notes for your new release of CUCM.
You can use a free MD5 utility such as md5summer or WinMD5 to calculate the MD5 checksum for the file you have downloaded. If they do not match, then your download is corrupt and you have to download it again, then re-check.
It looks like your CUCM has checksummed the file and found it to be corrupt.
Aaron
10-13-2011 02:58 AM
Thx for your clear explanation,which helps me a lot.
Ben
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