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Following DEV-LOCAL.md on a fresh Ubuntu 24.04 host (WSL2) surfaced three host requirements the guide does not mention, each of which stops the local stack: - The orchestrator needs iptables to set up sandbox networking. - Snapshot restore needs vm.unprivileged_userfaultfd=1; the CI runner setup already sets it, the guide did not. - Snapshot restore needs a kernel with UFFD_FEATURE_WP_ASYNC; on 6.6 every resume fails with "Failed to UFFD object". Document the 6.8 floor that E2B Embed already states. Also correct the WSL2 note (KVM is available; the kernel is too old) and add a troubleshooting entry for clickhouse-config-generated.xml being created as a directory when docker compose is started without make local-infra.
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September 24, 2026 09:07
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Following DEV-LOCAL.md on a fresh Ubuntu 24.04 host, three host requirements the guide doesn't mention each stopped the local stack:
exec: "iptables": executable file not found in $PATH).vm.unprivileged_userfaultfd=1: without it, snapshot restores fail. The CI runner setup already sets this (.github/scripts/setup-arm64-runner.sh), but the guide didn't.Failed to UFFD objectbecause the kernel lacksUFFD_FEATURE_WP_ASYNC. E2B Embed already documents this floor; DEV-LOCAL.md now does too.Also:
/dev/kvmdoes work on Windows 11; the real blocker is the 6.6 kernel.clickhouse-config-generated.xmlgetting created as a directory whendocker compose upruns withoutmake local-infra.