disabling ata devices

[Björn König]

JM wrote:

> from dmesg -a:
> ...
> ad0: 19077MB <ST92011A/3.04> [38760/16/63] at ata0-master UDMA33
> acd0: CDROM <CD-224E/1.7A> at ata0-slave UDMA33
> Mounting root from ufs:/dev/ad0s1a
> ...
> 
> when probing acd0 the system waits for about 10-20 seconds. [...]

Are you really sure that your CD-ROM drive is the originator of the 
problem, i.e. it works fine if you unplug your drive physically?

Björn