Chris Murphy <lists@xxxxxxxxxxxxxxxxx> > None of my SATA-USB enclosures behave this way. But what it does do is > mask (lie) the true physical sector size, claiming it's 512 bytes > instead of 4096 bytes. normal sata-usb should be ok. seagate/toshiba sata-usb will eat sectors. some gigabyte dual-bios motherboards will eat sectors (with disk HPA function). In the early days different vendors made different capacity harddisks. But at some moment, maybe 250GB or 500GB, suddenly every vendor made the same capacity harddisks. It's a mystery to me. who decides the disk sector numbers? why 2TB disk capacity is not double 1TB, 8TB not double 4TB? capacity is different for sd-card and ssd, but harddisk capacity seems normalized at some time.