> It would help if you started by showing where your disk would be in the
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> device tree.

I connect USB memory (sd(4)) at uhci0.  Please tell me.

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> Then I can tell you what (more or less) you need in your config file.

"More or less" doesn't meet my criteria.  Consider mission critical
use cases.  My devfs is not meant only for hobbysts.

Masao

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>> /mainbus0
>>  /pci0
>>    /puhb0
>>      /agp0
>>    /ppb0
>>      /pci0
>>        /vge0
>>          /ukphy0
>>        /vga0
>>          /wsdisplay0
>>          /drm0
>>        /uhci0
>>        /azalia0
>>        /ppb0
>>          /pci0
>>        /ppb1
>>          /pci0
>>        /uhci1
>>        /uhci2
>>        /uhci3
>>        /uhci4
>>        /ppb2
>>          /pci0
>>        /ichlpcib0
>>          /isa0
>>            /lpt0
>>            /com0
>>        /piixide0
>>          /atabus0
>>            /wd0
>>          /atabus1
>>            /atapibus0
>>              /cd0
>>        /ichsmb0
>>        /piixide1
>>          /atabus0
>>          /atabus1