NSO-6.0 Centos7.9 Install - (error) ZLIB-1.2.7.1 not found

[lwarrin1964]

The output message says to contact Cisco support for this issue.   The zlib lib repositories do now have zlib-1.2.7.1.  In a search through zlib - this one is not found.    Below is the output message. 

[lwarring@sv-usplan-cnso06 nso-6.0]$ sudo ./nso-6.0.linux.x86_64.installer.bin --local-install localinstall/

INFO  Using temporary directory /tmp/ncs_installer.30099 to stage NCS installation bundle

INFO  Unpacked ncs-6.0 in /opt/nso/nso-6.0/localinstall/

INFO  Found and unpacked corresponding DOCUMENTATION_PACKAGE

INFO  Found and unpacked corresponding EXAMPLE_PACKAGE

INFO  Found and unpacked corresponding JAVA_PACKAGE

INFO  Generating default SSH hostkey (this may take some time)

INFO  SSH hostkey generated

INFO  Generating self-signed certificates for HTTPS

REQUIRED LIBRARIES NOT FOUND

/opt/nso/nso-6.0/localinstall//lib/ncs/erts/bin/ncs.smp: /lib64/libz.so.1: version `ZLIB_1.2.7.1' not found (required by /opt/nso/nso-6.0/localinstall//lib/ncs/erts/bin/ncs.smp)

You will need to install them before you will be able to run NSO.

You are welcome to ask your Cisco support contact for assistance.

INFO  Environment set-up generated in /opt/nso/nso-6.0/localinstall//ncsrc

INFO  NSO installation script finished

INFO  Found and unpacked corresponding NETSIM_PACKAGE

INFO  NCS installation complete

[miott]

Go to the NSO developer hub and submit your question there. https://community.cisco.com/t5/developer-networking/ct-p/j-developer-networking

[u.avsec]

I think NSO is saying it is time to move to something newer than CentOS 7.9. Or CentOS altogether, may it RIP

[cohult]

If you want to make NSO 6 run on Centos 7, you need to download the zlib source code and "make install" it replacing the old version that comes with Centos 7. 

The zlib homepage. zlib.net, is gone, so you need to Google for something like "zlib 1.2.13" to get the source code tarball from somewhere. 

[cohult]

Try following this guide https://www.codetd.com/en/article/10787113 but use the 1.2.13 version from for example https://github.com/madler/zlib/releases/tag/v1.2.13

[cohult]

If the web server with the example guide is down, try: https://webcache.googleusercontent.com/search?q=cache:Y9Sxo72pk4IJ:https://www.codetd.com/en/article/10787113&cd=10&hl=sv&ct=clnk&gl=se