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Update WSL2 custom kernel documentation #2984

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Update WSL2 custom kernel documentation #2984

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5af4212
update documentation to fix issue 2983
Rainson12 Oct 28, 2022
b008e25
Update using-wsl2.md
Rainson12 Oct 28, 2022
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10 changes: 5 additions & 5 deletions site/content/docs/user/using-wsl2.md
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Original file line number Diff line number Diff line change
Expand Up @@ -102,25 +102,25 @@ WSL2 kernel is missing `xt_recent` kernel module, which is used by Kube Proxy to
{{< codeFromInline lang="bash" >}}
docker run --name wsl-kernel-builder --rm -it ubuntu:latest bash

WSL_COMMIT_REF=linux-msft-5.4.72 # change this line to the version you want to build
WSL_COMMIT_REF=linux-msft-wsl-5.10.102.1 # change this line to the version you want to build

# Install dependencies
apt update
apt install -y git build-essential flex bison libssl-dev libelf-dev bc
apt install -y build-essential flex bison bc dwarves libssl-dev git libelf-dev python3

# Checkout WSL2 Kernel repo
mkdir src
cd src
git init
git remote add origin https://github.com/microsoft/WSL2-Linux-Kernel.git
git config --local gc.auto 0
git -c protocol.version=2 fetch --no-tags --prune --progress --no-recurse-submodules --depth=1 origin +${WSL_COMMIT_REF}:refs/remotes/origin/build/linux-msft-wsl-5.4.y
git checkout --progress --force -B build/linux-msft-wsl-5.4.y refs/remotes/origin/build/linux-msft-wsl-5.4.y
git -c protocol.version=2 fetch --no-tags --prune --progress --no-recurse-submodules --depth=1 origin +${WSL_COMMIT_REF}:refs/remotes/origin/build/linux-msft-wsl-5.10.y
git checkout --progress --force -B build/linux-msft-wsl-5.10.y refs/remotes/origin/build/linux-msft-wsl-5.10.y

# Enable xt_recent kernel module
sed -i 's/# CONFIG_NETFILTER_XT_MATCH_RECENT is not set/CONFIG_NETFILTER_XT_MATCH_RECENT=y/' Microsoft/config-wsl

# Compile the kernel
# Compile the kernel (press no when prompted)
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@egandro egandro Oct 28, 2022 •
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Suggstion:

./scripts/kconfig/merge_config.sh arch/x86/configs/x86_64_defconfig <( printf 'CONFIG_DEBUG_INFO=y\nCONFIG_GDB_SCRIPTS=y\n' )

or Microsoft/config-wsl

That helped in the past - probably check this:

https://stackoverflow.com/questions/7505164/how-do-you-non-interactively-turn-on-features-in-a-linux-kernel-config-file

or probably a make oldconfig [something here]

make -j2 KCONFIG_CONFIG=Microsoft/config-wsl

# From the host terminal copy the newly built kernel
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