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22 Apr 11 UPDATE-3-UNTAR_CMD_FAIL: updcode.c:2832 Error during untar of webauth bundle. Tar returned 256

Recently I had an issue where I was trying to upload a customized web authentication page on Cisco 5508 WLC and it kept giving me the following error ” %UPDATE-3-UNTAR_CMD_FAIL: updcode.c:2832 Error during untar of webauth bundle. Tar returned 256″. I am running software version 7.0.98.0 on the Cisco 5508 wireless LAN controller. After some digging I found out that apparently there is a bug in this software version and if you tar the files on any windows based system and try to upload Cisco 5508 Wireless LAN Controller can not extract them and will give you the error, “%UPDATE-3-UNTAR_CMD_FAIL: updcode.c:2832 Error during untar of webauth bundle. Tar returned 256”.

To resolve this issue is to actually tar those files on a Unix or Linux system and then upload them to the Cisco 5508 Wireless LAN Controller and then it was able to easily extract the tar file. Now I don’t know if this will work for every one but for me this solution worked.

Update: I also found out that I can use a windows based free utility to accomplish it and it works. I used a utility called IZArc to tar the files and then upload them and it was successful

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