On Mon, 25 Aug 2014, Alfredo Dal Ava Junior wrote: > On Mon, 25 Aug 2014, Alan Stern wrote: > > > > Don't forget that lots of disks go crazy if you try to read from a nonexistent > > block, that is, one beyond the end of the disk. > > IMO, this bug cannot be worked around in any reasonable manner. The > > device simply cannot handle disks larger than 2 TB. > > > This device works well on Windows 7 if HDD is already partitioned. > Sounds like Win7 gnores the READ_CAPACITY value on a partitioned HDD. > It shows 4TB on disk manager, but will fall back to 1.8TB if I remove > the partition. That's right. I don't know why Windows behaves that way. > Could we do the same? Would be possible to signalize to upper layers > that capacity is not accurate (or return zero) on this device, and > tell GPT handlers to bypass it's partition_size vs disk size > consistency check? There is no way to do this, as far as I know. But I'm not an expert in this area. Maybe you can figure out a way to add this capability. (But then what happens if the size stored in the partition table really is larger than the disk's capacity?) Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
