Installation of Openshift UPI Method - Air Gapped - Facing NFT_COMPAT error on start of bootstrapnod

[AnandC]

Hi All,

I am installing Redhat Openshift Cluster 

UPI Method

Air gapped Version

Version: 4.16.36

When i start the bootstrap node, it is getting hanged with warning "Unmaintained Driver: NFT_COMPAT"

same error is noticed when i start the control pane node.

in bootstrap node check the kubelet/service. the kubelet keeps stopping and starting in loops.

Anyone noticed this error before? I tried to block nft_compat using kernel commands. even though the warning disappers there are errors in the bootstrap.service logs.

Kindly help.

[Chetan_Tiwary_]

@AnandC That is not an error related to OpenShift. It's a deprecation warning related to RHEL's network stack.

During the initial bootstrap phase and the subsequent control-plane startup, system services are responsible for loading necessary firewall and networking modules, which notably include nft_compat. When this particular block of code or functionality within nft_compat is activated or "triggered," the system will record relevant events in its logs as mentioned in your post :

https://forums.openvpn.net/viewtopic.php?t=35391& 

https://unix.stackexchange.com/questions/763083/what-loads-nft-compat 

https://access.redhat.com/solutions/6739041 

https://github.com/firewalld/firewalld/issues/1111 

[AnandC002 · Accepted solution]

@Chetan_Tiwary_ , Thank you Sir. I was able to proceed with the Openshift Air Gapped Installation with Version 4.15.23. Faced NFT_Compat message again while booting. However, it did not stop the cluster instalaltion. Thanks for providing the clarification and references.

[Chetan_Tiwary_]

@AnandC002 Thanks for the update! Glad that your issue was resolved!