canonical livepatch error: certificate signed by unknown authority

mm flag

I'm using livepatch on Ubuntu 18.04 LTS for quite some time. A few days ago I noticed a red exclamation mark. Then I signed out and tried to reapply the live patch.

However the following comand throws an error:

sudo canonical-livepatch enable <key>
--> error executing enable: failed to register client: Post<key>?test=: x509: certificate signed by unknown autority.

How can succesfully enable live patch again? Thanks for your help!

in flag
When was the last time you updated the server manually? If your system is suffering from [this bug](, then a fix was released last August
ssssstut avatar
mm flag
when SW update show up in grahical client I always apply them asap. Currently graphical client doesn't show any pending updates. Should I do anything else?
muru avatar
us flag
Did you type that error yourself? The URL should begin with `` (single `n` in `canonical`).
ssssstut avatar
mm flag
yes, it's my typo. Thanks for mentioning it. I just now tried apt-get update and apt-get upgrade and then sudo canonical-livepatch enable <key> --> same error. So system should be up to date.
ssssstut avatar
mm flag
Is it an issue with my ubuntu installation or should I register online for a new livepatch key?

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