I installed and customized Ubuntu 24.04 on my laptop, but I can’t create an ISO from this system. I don’t know how to use Cubic—if someone knows the full Cubic workflow to build a spin, please help.
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Your question was moved to its own topic for better support.
Additionally, this package is not in the official repositories but rather a PPA.
Therefore, support might be limited to those users who are familiar with it.
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Cubic doesn’t convert an installed system directly into an ISO.
Instead, it works by starting from an official Ubuntu ISO, then lets you reproduce your customizations inside a chroot environment and build a new ISO.
The official Cubic wiki explains the full workflow step by step and is the best place to start:
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