disabling ata devices

[JM]

Dmitry Mityugov wrote:

>On 6/15/05, JM <jmartin37 at speakeasy.net> wrote:
>  
>
>>Dmitry Mityugov wrote:
>>
>>    
>>
>>>On 6/15/05, JM wrote:
>>>
>>>
>>>      
>>>
>>>>i'm not exactly sure how to accomplish this... i'm having problems with
>>>>my cd-rom, which isn't surprising since it's a slim-line without UDMA
>>>>and probably isn't supported... but... it's eating up time when i'm
>>>>booting the system.  i've erased the fstab lines for acd0 but it's still
>>>>probing the hardware when i boot the machine.  how do i completely
>>>>disable probing for this device at startup?  if possible i'd like to
>>>>just remove the device node altogether.  every time i remove /dev/acd0
>>>>it's just recreated each time i restart.  not sure how to permanently
>>>>remove it without physically removing it from the system.  is there
>>>>anyway to remove the node without removing the iso9660 entry from the
>>>>kernel?
>>>>
>>>>
>>>>        
>>>>
>>>Is it possible to disable it in BIOS?
>>>
>>>
>>>
>>>      
>>>
>>i was thinking more along the lines of telling the loader not to probe
>>for it...
>>    
>>
>
>Not sure if this will work but if the CD-ROM device is on a separate
>ATA controller, you can try to disable with with corresponding
>"disabled" statement in /boot/device.hints, like
>
>hint.ata.1.disabled="1"
>
>  
>
i thought about this but the ad0 and acd0 are on the same controller... 
i think.  is there some hardware probe i can use to confirm which 
controller each ata device belongs to (corresponding to the device.hints 
entry...)