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I run Ubuntu 22.04 on a Dell Latitude E7440

sudo pro status

WARNING:root:failed to process /proc/version_signature.
SERVICE          ENTITLED  STATUS    DESCRIPTION
esm-apps         yes       enabled   Expanded Security Maintenance for Applications
esm-infra        yes       enabled   Expanded Security Maintenance for Infrastructure
livepatch        yes       enabled   Canonical Livepatch service
realtime-kernel  yes       disabled  Ubuntu kernel with PREEMPT_RT patches integrated

Enable services with: pro enable <service>
[...]

uname -r

5.18.0-051800-generic

File /proc/version_signature is missing. File /proc/version exists.

How can I fix this problem?

Flavio Sartoretto
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  • Related question with discussion in comments: [Missing /proc/version_signature file](https://askubuntu.com/questions/1445776/missing-proc-version-signature-file). What is the output of `uname -v`? – steeldriver Feb 04 '23 at 20:41
  • uname -v gives: #202205222030 SMP PREEMPT_DYNAMIC Sun May 22 20:33:46 UTC 2022 – Flavio Sartoretto Feb 10 '23 at 18:43
  • So I guess it's a non-Ubuntu kernel, that doesn't set the `CONFIG_VERSION_SIGNATURE` parameter? – steeldriver Feb 10 '23 at 18:51
  • Thank you steeldriver for your comments. I cannot answer to your question. I installed Ubuntu 22.04 from Ubuntu site. I guessed the Kernel is Ubuntu! – Flavio Sartoretto Feb 12 '23 at 08:25

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