Re: Another question: device naming convention

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From: Johan Beisser

Subject: Re: Another question: device naming convention

Date: Thursday, January 21, 2010 - 10:04 pm

On Thu, Jan 21, 2010 at 8:42 PM, Song Li <lisong@stanford.edu> wrote:

quoted text> For the mount device: what's the device naming convention and the
> rationale behind it? I do not think it's a good idea to search through
> all the device and find out the device name. Linux and FreeBSD use
> slightly different convention but they both make sense to me. What
> about OpenBSD?

Read intro(4), sd(4), wd(4) and disklabel(5)/disklabel(8).

The naming comes from the driver itself: sd is scsi disk, wd is
"WD100x compatible hard disk driver." It depends on the upper level
driver to determine the device name.

The 'r' prefix, "rsd0" for example, is the raw device. It's rare
you'll need to access it, but it does happen occasionally.

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Messages in current thread:

Another question: device naming convention, Song Li, (Thu Jan 21, 9:42 pm)

Re: Another question: device naming convention, Johan Beisser, (Thu Jan 21, 10:04 pm)

Re: Another question: device naming convention, Song Li, (Thu Jan 21, 10:39 pm)

Re: Another question: device naming convention, Bret S. Lambert, (Thu Jan 21, 10:44 pm)

Re: Another question: device naming convention, Song Li, (Thu Jan 21, 11:43 pm)

Re: Another question: device naming convention, Miod Vallat, (Fri Jan 22, 12:21 am)

Re: Another question: device naming convention, Ted Unangst, (Fri Jan 22, 12:32 am)

Re: Another question: device naming convention, Johan Beisser, (Fri Jan 22, 12:34 am)

Re: Another question: device naming convention, Otto Moerbeek, (Fri Jan 22, 12:54 am)

Re: Another question: device naming convention, Johan Beisser, (Fri Jan 22, 12:56 am)

Re: Another question: device naming convention, Marc Espie, (Fri Jan 22, 1:20 am)

Re: Another question: device naming convention, Song Li, (Fri Jan 22, 1:31 am)

Re: Another question: device naming convention, Stas Miasnikou, (Fri Jan 22, 1:50 am)

Re: Another question: device naming convention, Jacob Meuser, (Fri Jan 22, 2:05 am)

Re: Another question: device naming convention, Marc Espie, (Fri Jan 22, 2:42 am)

Re: Another question: device naming convention, David Vasek, (Fri Jan 22, 4:12 am)

Re: Another question: device naming convention, Julian Leyh, (Fri Jan 22, 6:35 am)