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Linux Administration

Linux Administration presents a collection of common issues and useful tips for Linux system administration. Whether you’re new to system administration or have been maintaining systems for some time, we hope these tips are helpful regardless of your background or choice in Linux distributions.

Remove cloud-init from Ubuntu

Remove cloud-init from Ubuntu - blackMORE Ops - 2

Cloud images are operating system templates and every instance starts out as an identical clone of every other instance. It is the user data that gives every cloud instance its personality and cloud-init is the tool that applies user data to your instances automatically. Cloud-init is the defacto multi-distribution package …

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Fixing W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://dl.hhvm.com trusty InRelease: The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY B4112585D386EB94

An error occurred during the signature verification - NO_PUBKEY B4112585D386EB94 - blackMOREOps 2

I was trying to update one of my server that has some HHVM repositories and received this error “W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://dl.hhvm.com trusty InRelease: The following signatures couldn’t be verified …

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