It's seeing the protective MBR of a GPT disk (0xEE) and assumes it's an MBR disk. Likely a defect in installboot somewhere.
Did this disk contain another operating system before? A hex dump of the first 512 bytes of the disk might be helpful to someone smarter than myself: # dd if=/dev/sd0c bs=1 count=512 | hexdump -C Regards Lloyd James J. Lippard wrote: > master boot record (MBR) at sector 0 > partition 0: type 0xEE offset 1 size 4294967295 > installboot: no OpenBSD partition > > fdisk sd0: > > Disk: sd0 Usable LBA: 34 to 500118158 [500118192 Sectors] > #: type [ start: size ] > ------------------------------------------------------------------------ > : Free [ 34: 30 ] > 0: EFI Sys [ 64: 532480 ] > 1: OpenBSD [ 532544: 499585615 ] >
