bootdisk = bootdisks.find { |b| b =~ /^wwn-/ } ||
          bootdisks.find { |b| b =~ /^scsi-[a-zA-Z]/ } ||
          bootdisks.find { |b| b =~ /^scsi-[^1]/ } ||
          bootdisks.find { |b| b =~ /^scsi-/ } ||
          bootdisks.find { |b| b =~ /^ata-/ } ||