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Upgrading to High Sierra: “You may not install this volume because the computer is missing a firmware partition”

Posted byAlan SiuJune 15, 2018June 15, 2018Posted inUncategorizedTags: firmware, high sierra, macos, owc, troubleshooting2 Comments on Upgrading to High Sierra: “You may not install this volume because the computer is missing a firmware partition”

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