image: fix deadlock on boot by using AWS linux kernel #2115
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Signed-off-by: Daniel Weiße <dw@edgeless.systems>
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Signed-off-by: Daniel Weiße <dw@edgeless.systems>
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Context
Constellation nodes on AWS SEV-SNP frequently get stuck during boot.
They are usually automatically cleaned up and replaced by AWS after a period of 5-10 minutes.
After a lot of testing, our Kernel was deemed to be the problem.
Proposed change(s)
Related issue
Additional info
This does not seem to fix all problems related to booting SEV-SNP VMs, but it seems to make things a lot more stable.
We'll need a build process for the Kernel.
The standard AWS Linux Kernel (currently
6.1.34-59.116) does not support dm-verity and has dependencies on packages which aren't actually required.We have a prebuilt Kernel with the required modules, but in the future we should automate the process of building this Kernel.
Checklist