New 3tb hdd thinks it's 801.6 GB

[John Austin]

On Thu, 2012-09-27 at 15:18 -0400, Bill Davidsen wrote:
> Marko Vojinovic wrote:
> > On Wednesday, 26. September 2012. 22.08.50 George R Goffe wrote:
> >> I had tried what you suggested but the system still reports 801.6 GB.
> >>
> >> I have seen some mention of firmware problems but the asus.com web site
> >> seems to have firmware carefully hidden.
> >>
> >> What are your thoughts?
> > [snip]
> >> fdisk -l /dev/sdb
> >
> > The fdisk utility is known to not work properly on devices larger than 3TB.
> > You want to use parted (or some gui version like gparted) to create a new
> > partition table.
> >
> I wish that were not the case, but AFAIK this is true, I thought it worked up to 
> and including 3TB and failed after that, but there are issues.
> 
> Note: you may get better results with fdisk turning off compatibility (c) and on 
> physical block addressing (u). Both commands from memory. Check that the 
> physical sector size is correct, presumably it's 4k. And in case, when you 
> create the filesystem, be sure to use appropriate options for the sector size, etc.
> 
> You may have to learn partd, which is seriously different.
> 
> 
> -- 
> Bill Davidsen <davidsen at tmr.com>
>    "We have more to fear from the bungling of the incompetent than from
> the machinations of the wicked."  - from Slashdot

Why not gdisk ?
http://www.rodsbooks.com/gdisk/

John