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Cover linux/arm64 in the prebuilt seid install and upgrade steps - #64

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Cover linux/arm64 in the prebuilt seid install and upgrade steps#64
monty-sei wants to merge 1 commit into
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monty/arm64-prebuilt-binary-docs

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@monty-sei

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Draft on purpose. Do not merge until arm64 binaries are actually attached to a sei-chain release. These pages were reverted once before (#44) for documenting prebuilt binaries ahead of their existence, and #55 only restored them after v6.6.1 shipped. Same rule applies here.

What this changes

Three files, eight lines. The prebuilt binary tabs hardcode sei-chain_${VERSION#v}_linux_x86_64.tar.gz and state the builds are linux/amd64 only.

File Hunks
evm/installing-seid-cli.mdx intro sentence, download snippet, <Info> caveat
node/index.mdx intro sentence, download snippet, <Info> caveat
node/node-operators.mdx the Minor Updates and Major Updates snippets

The two in node-operators.mdx are the easy ones to miss. Without them an arm64 operator can install from the guide and then be unable to upgrade, because both update procedures would hand them an amd64 tarball.

The detail worth reviewing

The asset token is arm64, but uname -m on Linux reports aarch64. So substituting $(uname -m) directly appears to work (it is correct on amd64 by coincidence) and then 404s on every arm64 machine. The snippet maps explicitly instead:

case "$(uname -m)" in
  x86_64)        ARCH=x86_64 ;;
  aarch64|arm64) ARCH=arm64  ;;
  *) echo "unsupported architecture: $(uname -m)" >&2; exit 1 ;;
esac
FILE=sei-chain_${VERSION#v}_linux_${ARCH}.tar.gz

An unrecognised architecture stops rather than building a filename that cannot exist. Verified the mapping produces ..._linux_x86_64.tar.gz on x86_64 and ..._linux_arm64.tar.gz on both aarch64 and arm64.

Before this can merge

  • arm64 binaries are attached to a published sei-chain release
  • replace the <arm64-release-tag> placeholder in evm/installing-seid-cli.mdx and node/index.mdx with the first release that carries them
  • confirm the asset name matches what goreleaser actually produced (this assumes sei-chain_<version>_linux_arm64.tar.gz)
  • confirm the arm64 tarball is covered by checksums.txt, since sha256sum -c --ignore-missing exits 0 and prints nothing for a file that is present but unlisted

Out of scope

node/seictl.mdx also names x86_64 archives, but that is the seictl binary and a separate release pipeline. node/index.mdx line 195 ("Available architectures: linux/amd64 and linux/arm64") describes the Docker images and stays accurate. llms.txt and llms-full.txt are generated from the deployed site, so they should be regenerated after this deploys rather than hand-edited.

The prebuilt binary tabs hardcode the amd64 tarball name and state that the
builds are amd64 only. Once arm64 binaries are attached, an operator on Graviton
or Ampere following these pages downloads a 404 or, worse, installs an amd64
binary that will not run.

Derive the asset architecture from uname -m rather than substituting it directly.
The asset token is arm64 while uname -m reports aarch64 on Linux, so a naive
substitution works on amd64 by coincidence and fails everywhere else. An
unrecognised architecture now stops the pipeline instead of building a filename
that does not exist.

Both update procedures in node-operators.mdx get the same treatment. They were
easy to miss and leaving them would let arm64 operators install and then be
unable to upgrade.
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