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Update Elevate troubleshooting docs with a NetworkManager nameserver symlink case #271

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Update Elevate troubleshooting docs with a NetworkManager nameserver symlink case #271

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15 changes: 15 additions & 0 deletions docs/cloudlinuxos/elevate/README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -275,6 +275,21 @@ Allow Leapp to disable the pam_pkcs11 module in PAM configuration by adding an e
sudo leapp answer --section remove_pam_pkcs11_module_check.confirm=True
```

#### NetworkManager configuration symlink

The following error can be seen when running the pre-reboot upgrade phase.

```
Actor target_userspace_creator has crashed error [update-ca-trust'] failed with exit code 1.

2025-03-11 01:02:07.648 DEBUG PID: 3593092 leapp.workflow.TargetTransactionFactsCollection.target_userspace_creator: curl: (6) Could not resolve host: repo.cloudlinux.com; Unknown error
2025-03-11 01:02:07.662 DEBUG PID: 3593092 leapp.workflow.TargetTransactionFactsCollection.target_userspace_creator: error: https://repo.cloudlinux.com/cloudlinux/security/RPM-GPG-KEY-CloudLinux: import read failed(2).
```

In the known cases, this issue is caused by the user switching the nameserver setup to NetworkManager - with a symlink /etc/resolv.conf to the location where NetworkManager manages it (nmcli).

The issue can be resolved by removing the symlink and setting up the nameservers directly in /etc/resolv.conf.

#### CLN registration

Should you encounter an issue with the `switch_cln_channel` actor, make sure that your system is registered with the CLN network.
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