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OpenShift 4.20.11 以降のバージョンで、metal3-image-customization Pod が "Read-only file system" エラーで失敗する

Solution In Progress - Updated -

Issue

  • openshift-machine-api namespace の metal3-image-customization Pod が CrashLoopBackOff 状態になります。
> oc get pod -n openshift-machine-api | grep CrashLoopBackOff
metal3-image-customization-7x94922-4pac9           0/1     Init:CrashLoopBackOff   7          15m

> oc logs metal3-image-customization-7x94922-4pac9
2026-02-03T22:56:58.908736543Z /bin/copy-metal: line 43: /coreos/coreos-aarch64.iso.sha256: Read-only file system
  • この問題は、OpenShift Container Platform バージョン 4.20.11 以降で確認されています。

Environment

  • Red Hat OpenShift Container Platform (OCP)
    • 4.20.11 以降
    • 4.21.x

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