ZFS ‘Failed to start Mark current ZSYS boot as successful’ fix

On Ubuntu 20.04 after installing the NVIDIA driver 510 metapackage the system stopped booting. It will either hang with a black screen and blinking cursor on the top left or show the following error message: Attempting to revert from a snapshot ends up with the same error message. This wasn’t…

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Ubuntu: Ubuntu 20.4 installing NVIDIA drivers breaks built-in audio on laptop

On a new laptop I couldn’t get the external HDMI monitor to work with the nouveau drivers, so I installed the NVIDIA drivers (version 440). The NVIDIA drivers worked perfectly and the external monitor could be configured, but it didn’t take too long to notice that the built-in audio wasn’t…

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