Validating seed?

jedahan · July 6, 2026, 5:46pm

What’s the simplest but correct way to validate a seed.tar before creating usb install media to install on real hardware?

abiosoft · July 6, 2026, 6:07pm

No proper way yet.

I only do basic sanity check by verifying the file tree structure with tar tvfz /path/to/seed.tar.

gibmat · July 6, 2026, 6:21pm

Yeah, there’s not really any nice seed validation at the moment. I’ve created an issue to track work on improving this:

github.com/lxc/incus-os

Improve seed validation and add a simple validator

opened 06:20PM - 06 Jul 26 UTC

gibmat

Currently there's not much more than basic json/yaml unmarshaling as far as seed… validation goes. We should investigate if it's possible to move existing validation logic across the codebase into a more generic per-seed `Validate()` method (or similar). Some validation logic might not be possible to move, due to dependencies on run-time data or other system configuration. We could then also create a simple `validate-seed` binary which would consume a seed.tar and report if it appears valid or not.