Error: Error: The Yum utility failed to install the required packages. Attention! Your software might be inoperable. Please, contact product technical support.

Hi all,

I encountered the following error with Yum while Plesk upgrade. This was mainly seen when a direct upload from plesk 8.6 to 11 was tried by the customers.

"Error: The Yum utility failed to install the required packages.
Attention! Your software might be inoperable.
Please, contact product technical support."



The issue occurred due to the following so file soft links.
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xxxx-bash-3.2# ls -al /usr/lib/libz*
-rw-r--r-- 1 root root 101462 Aug 23 09:13 /usr/lib/libz.a
lrwxrwxrwx 1 root root     13 Dec 21 02:23 /usr/lib/libz.so -> libz.so.1.2.5
lrwxrwxrwx 1 root root     13 Dec 21 02:23 /usr/lib/libz.so.1 -> libz.so.1.2.5
-rwxr-xr-x 1 root root  73580 Jan 10  2007 /usr/lib/libz.so.1.2.3
-rwxr-xr-x 1 root root  95004 Aug 23 09:13 /usr/lib/libz.so.1.2.5
-------------------------------------------------------------------------------------------------------

Replacing the soft links in the server with the command ln -s helped me

Command summary after soft link was replaced.
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xxxx-bash-3.2# ls -al /usr/lib/libz*
-rw-r--r-- 1 root root 101462 Aug 23 09:13 /usr/lib/libz.a
lrwxrwxrwx 1 root root     13 Dec 21 02:23 /usr/lib/libz.so -> libz.so.1.2.3
lrwxrwxrwx 1 root root     13 Dec 21 02:23 /usr/lib/libz.so.1 -> libz.so.1.2.3
-rwxr-xr-x 1 root root  73580 Jan 10  2007 /usr/lib/libz.so.1.2.3
-rwxr-xr-x 1 root root  95004 Aug 23 09:13 /usr/lib/libz.so.1.2.5

xxxx-bash-3.2#yum clean all
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If the reported steps does not do the trick for you .
You can also try to reinstall the yum Packages with rpm.

Command summary
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 #cd /usr/lib
#ln -s libz.so.1.2.3 /usr/lib/libz.so
#ln -s libz.so.1.2.3 /usr/lib/libz.so.1
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Reference:http://pads.tiddlyspace.com/YumSegmentationFault

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rzm