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RedhatOS設計 Kdump

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インストールしたRHELは自動でkdump有効設定になっていました。

そのまま以下のコマンドを実行したら

echo 1 > /proc/sys/kernel/sysrq
echo c > /proc/sysrq-trigger

デフォルト設定の/var/crashにdumpファイルが吐かれていました。

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