128 GiB+ disks on Intel PIIX4

Daan Vreeken [PA4DAN] Danovitsch at Vitsch.net
Mon Oct 18 05:19:52 PDT 2004

On Monday 18 October 2004 13:03, Svein Halvor Halvorsen wrote:
> Is this at all possible? My BIOS don't seem to recognize my brand new 200
> GB disk, but that is nothing new. I can initialize a new slize, setup
> bsdlabel and do newfs on if without problems. How can I verify that the
> entire disk is usable without filling it all up (or past the 128 GiB
> barrier), and then reading everything back out?
Try copying the entire disk to /dev/null   :

dd if=/dev/ad1 of=/dev/null

If it succeeds without errors, you should also be able to write the entire 


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