HD not correctly recognized

[Simon 'corecode' Schubert]

On 14.07.2004, at 21:32, Matthew Dillon wrote:
:You are right, it was the jumper. I had lent the drive for some time 
and
:just got it back, I forgot to check that point. It's ok now. My fault,
:sorry for that. Anyway, I still wonder why FreeBSD 5 and Linux didn't 
care
:about that jumper.
    That's a good question.  I have no idea, I'm assuming its some sort
    of ATA command to override the jumper.  But I'm not going to worry
    about it for the moment.
This is a special interface which is supported by most modern hard 
disks. It makes the hard disk initialy report a smaller size so that 
old broken BIOS check routines don't hang (like old Award ones). If you 
tell the hard disk to show it's real ego, it probes OK. Some time ago I 
had to modify the freebsd MBR to get it booting on such a disk/BIOS 
combination. It's rather easy and should at least be supported by the 
first program of DragonFly that accesses the disk (loader/kernel).

cheers
  simon
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