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note requirement to upgrade precursorupdater

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bunnie 2024-01-08 15:54:28 +08:00
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RELEASE-v0.9.md
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@ -454,6 +454,8 @@ perform the Xous firmware upgrade. This requires running manual update commands,
filesystem signature before jumping to the kernel, at the expense of being more vulnerable to any breaks in SHA-512,
or a runtime break in the `root-keys` process that gains an arbitrary write primitive and is able to remodel
the stored hash value before it is signed.
- An update to `precursorupdater` is needed to recognize v2 kernel signatures (needs to be <= v0.1.5). Upgrade using
`python3 -m pip install --upgrade precursorupdater`
- Environment variables are now a feature of programs. They are stashed just beyond the top of stack by the loader.
They are mostly intended for test & debug tooling, where the loader is in the host environment, but this mechanism
is also used to resolve the above issue.