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Anaconda Fails When BIOS RAID Metadata Encountered

Anaconda (the RHEL, CentOS and Fedora installer) does not handle disks which were previously used in a BIOS or software RAID very well. Typically, it will refuse to install an OS on such disks. This is because it finds metadata relating to the RAID on the disk. The term BIOS RAID (or Fake RAID) denote a system with a BIOS that is able to do basic RAID operations on an array of disks. Such a system has no actual RAID controller. Instead, an OS driver is required. One metadata format commonly found on modern RAID systems (real as well as