> -----Original Message-----
> [mailto:[EMAIL PROTECTED] On Behalf Of Vizion
> Sent: Tuesday, August 22, 2006 6:14 AM
> To: freebsd-questions@freebsd.org
> Subject: Devices
> Hi
> I have previously reported an inability to get my amd Freebsd 
> 6.1 system to recognize a drive and am wondering if it is 
> because the relevant device node is not in /dev. having said 
> that I am unsure of what I need to be looking for or how to create it.
> here are the drives I have got:
> (NB Physical Location is is what I use to identify  the 
> machine bay in which it is located!)
> Western Digital WD2000JD Physical location A SATA
> ad0 is a Western Digital WD2000JB-00KFA0 08.05J08 Physical 
> location B IDE ata-0master UDMA100
> ad4 is a Seagate ST3160827AS 3.42 ata2 -master SATA150
> acd0 is a CDRW <LITE-ON CD-RW SOHR-5239S/2s03> at ata0-slave UDMA33
> CMOS reports
> IDE Channel 0 Master WDC WD2000JB 
> IDE Channel 0 Slave  LITE-ON CD-RW SOHR
> IDE Channel 1Master [None] 
> IDE Channel 1 Slave  [None]
> IDE Channel 2 Master  [None]  
> IDE Channel 3 Master  WDC WD2000JD
> IDE Channel 4 Master  [None]
> IDE Channel 5 Master  ST3160827As
> In /dev I have ad0, ad0s1 & ad0s1a >thru e
> ata
> da0 & da1
> I do not gave any others that appear to be relevant to drives.
> Question is
> 1. What device node names need to be in /dev.
> 2. How do I create any missing ones.
> I have looked at the man pages but I find them a bit terse 
> for my understanding
> Thanks

As an experiment I disconnected ad0 and then rebooted from the iso image to see 
what would be reported.
The installation menu reported
No disks found!

Does anyone have a clue as to what might be going on here and how I might be 
able to deal with  it?


It turns out that the connections tio the drives have to be connected in the 
preferential order by which the drives are listed in the cmos AND that includes 
correct choice for each sata bus. get any of them in the wrong sequence and 
freebsd does not recognize the drive as being present.

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