Unable to apt update at chroot prompt, invalid signature

Asked by JoshuaMcTurnan on 2019-06-11

I'm trying to make a live image containing hardware testing tools that I will network boot. I get this with all Ubuntu repositories on a 16.04 iso

W:An error occured during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://archive.ubuntu.com/ubuntu xenial InRelease: At least one invalid signature was encountered.

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Solved by:
JoshuaMcTurnan
Solved:
2019-06-11
Last query:
2019-06-11
Last reply:

It must've been the laptop that I have Ubuntu installed on. Tried on a VM and it worked fine not preferred but it will work.