convert2rhel: "yum update" fails with "Could not resolve host: mirrorlist.centos.org; Unknown error"

Solution Verified - Updated -

Issue

  • Trying to convert a system from CentOS 7 to RHEL7, the following error message is displayed when trying to update the system prior to conversion

    # yum update
[...]
Could not retrieve mirrorlist http://mirrorlist.centos.org/?release=7&arch=x86_64&repo=os&infra=stock error was 14: curl#6 - "Could not resolve host: mirrorlist.centos.org; Unknown error"
Could not resolve host: mirrorlist.centos.org; Unknown error

Environment

  • CentOS
    • convert2rhel

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