docs: document minimum Linux kernel version (4.20+)#1459
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Signed-off-by: Matt Van Horn <455140+mvanhorn@users.noreply.github.com>
Luap99
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Jun 8, 2026
| - [Podman](https://podman.io/docs) 4.0+ | ||
| - [protoc](https://grpc.io/docs/protoc-installation/) | ||
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| At runtime, Netavark supports Linux kernel 4.20 or newer. Netavark relies on |
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I think this says the wrong thing? Did you actually test it works on kernel 4.20 (i.e. passing all tests)?
I think what we can say it it does not work on older kernels so we need at least 4.20 but we have no way of testing older kernels so it is totally possible we require other newer kernels already.
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Summary
Documents netavark's minimum runtime kernel requirement (Linux 4.20+) in the README.
Why this matters
A user hit
EPROTONOSUPPORTat runtime and bisected it toNETLINK_GET_STRICT_CHK, which requires Linux 4.20+ (#1433). Maintainer @Luap99 agreed that documenting the 4.20+ minimum is the right resolution. This adds that note to the README so users on older kernels understand the requirement instead of hitting an opaque error.Testing
Documentation only.
Closes #1433