Re: udev and devfs - The final word

Rob Love
2004-01-01T00:31:56Z

On Wed, 2003-12-31 at 19:15, Andries Brouwer wrote:

> My plan has been to essentially use a hashed disk serial number
> for this "any old unique value". The problem is that "any old"
> is easy enough, but "unique" is more difficult.
> Naming devices is very difficult, but in some important cases,
> like SCSI or IDE disks, that would work and give a stable name.

Yup.

> The kernel must not invent consecutive numbers - that does not
> lead to stable names. Setting this up correctly is nontrivial.

This is definitely an interesting problem space.

I agree wrt just inventing consecutive numbers. If there was a nice way
to trivially generate a random and unique number from some
device-inherent information, that would be nice.

Rob Love