Please refer to libdevinfo. There is a call devfs_prom_to_dev_name() you 
can use to do translation between PROM name to devfs name.
http://src.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/lib/libdevinfo/devfsinfo.c#939
http://src.opensolaris.org/source/s?refs=devfs_prom_to_dev_name&project=/onnv
The function is actually provided by openprom(7D) driver. Or you can use 
ioctl() of openprom driver directly:
/usr/src/uts/common/io/openprom.c OPROMPROM2DEVNAME

Thanks
Javen



Jon Aimone wrote:
> Hi,
>
> For a SPARC system is there a simple way to determine the OBP device 
> path for a disk given its /devices path in Solaris? The leaf of the 
> path on a running system is different than the path listed in the OBP.
>
> For example, here is the boot-device of a system as seen from the OBP 
> and then from Solaris:
>
> /pci at 400/pci at 0/pci at 8/scsi at 0/disk at 1,0:a
> /devices/pci at 400/pci at 0/pci at 8/scsi at 0/sd at 0,0:a
>
> I can understand simply removing /devices, but what about the "disk" 
> -vs- "sd" bit? I presume "sd" represented the driver. Can I always 
> remove the prefix of the last word up to the @ (e.g. sd or ssd) and 
> replace it with "disk"?
>
> The installer must do this somehow to set the boot device...
>
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>   


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