Host Evaluation Error

[Jose Romero]

Dear community, could you guide me? I'm getting the following error when trying to install the Vertica repository.

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Host Evaluation
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Memory required: 32GB, available: 8GB................................[WARN]
COREs required: 8, available: 2......................................[WARN]
Kernel available: 5.14.0.427, supported: 5.14.0.70+..................[ OK ]
Searching for required and recommended packages......................[ OK ]
Package: dialog installed............................................[ OK ]
Package: mcelog installed............................................[ OK ]
Package: zip installed...............................................[ OK ]
Package: unzip installed.............................................[ OK ]
Package: chrony installed............................................[ OK ]
Package: libnsl not installed........................................[ERROR]
Package: bc installed................................................[ OK ]
Package: gdb installed...............................................[ OK ]
Package: sshpass installed...........................................[ OK ]
Package: python3 installed...........................................[ OK ]

PRESS <ENTER> TO CONTINUE:

===============================================================================
Host Evaluation Error
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Host does not meet minimum requirements

I am trying to install for testing on Red Hat Enterprise Linux release 9.4 (Plow)

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[Catalin Farcasanu]

The message is self explanatory. libnsl is missing. You need to get the package for 9.4 and install it.

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Cătălin Fărcășanu
Senior Consultant
SolvIT Networks
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[Jose Romero]

Thanks for your reply. My question is that I installed a local repository and when I try to install the library, I get the following message:

[root@dr01 media]# yum install -y libnsl
Actualización de repositorios de Subscription Management.
No se pudo leer identidad del consumidor

This system is not registered with an entitlement server. You can use "rhc" or "subscription-manager" to register.

Última comprobación de caducidad de metadatos hecha hace 16:08:03, el jue 12 feb 2026 17:01:35.
No hay coincidencias para el argumento: libnsl
Error: No se pudo encontrar ningún resultado: libnsl
[root@dr01 media]#

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[Edward Royston]

In addition to the missing package (dnf install libnsl), you are

• Lacking memory.
  • Presumably this is a VM - bump it up to at least 16GB for a test environment. 8GB will run Vertica really badly.
• Not enough cores assigned.
  • Bump it up to at least 4 cores for a test environment.
• Running a really old version of RHEL.
  • Upgrade it to 9.7 otherwise you will run into support issues with Vertica itself.
  • If you don't have a RHEL license then re-install everything under Rocky Linux (current release is 9.7), which won't cost you anything and is RHEL compatible enough to do what you are after (suggest performing a minimal install to save on the resources that you have available).

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[Jose Romero]

Thanks for your reply. When searching for the library, I only find the following:

[root@dr01 media]#  rpm -qa --last | grep libnsl
libnsl2-2.0.0-1.el9.x86_64                    mié 11 feb 2026 18:22:39
[root@dr01 media]#

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[Edward Royston]

The dep is for libnsl1 and not libnsl2. You need to install the libnsl1 package and not libnsl2. They are NOT backwards/cross-compatible. In fact, if you look at the dep list in techdocs (or go to the Vertica docs themselves), libnsl2 is NOT a dep for Vertica.

Therefore, uninstall libnsl2 and install libnsl1.

In addition, it looks like you don't have this registered to any sort of repo server. Therefore, you will have to do one of two things:

1. Register it to a valid repo server (which you would have to pay a RH license for).
   1. You are getting the error you are getting since you don't have a valid repo to pull packages off!
2. Grab the install media and get the RHEL 9.4 libnsl1 package from it (though you won't be getting any security patches/updates if it has been updated.
   1. Hence my suggestion - if this is a testbed (and I certainly hope it is since you are drastically undersizing the DR box!) - then I would recommend re-building it with Rocky 9.7 and so you won't encounter issues like the ones that you are getting about not hitting a valid repo (since the Rocky repos are publically available and accessible and do have updates).

If you do a "dnf search libnsl" then it will list out the versions of packages that are available to you. Also, since you are using RHEL9 (and the same goes for RHEL8), you should be using "dnf" instead of "yum"... 😉

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[Jose Romero]

Thanks, that helped. I uninstalled the library and found the RPM in the local repository and installed it, which fixed the error and allowed me to proceed.

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