[NCLUG] disk drive partition designation

[William Greger]

Brian,

  Thanks for your response.  I always like to understand the reason behind what's going on.

Bill Greger

> From: bwood at beww.org
> To: nclug at nclug.org
> Subject: Re: [NCLUG] disk drive partition designation
> Date: Fri, 1 Aug 2008 15:17:13 -0600
> 
> On Friday 01 August 2008 14:34:33 William Greger wrote:
> > My PC system is dual-boot (Ubuntu 8.04; XP Pro).
> > It contains
> > - HD1: ATA 100 controller, primary, master (for Linux)
> > - HD2: ATA 100 controller, primary, slave (for Windows)
> > - optical drives use the ATA 100 controller, secondary, master/slave
> >
> > In the Linux directory,
> > /dev contains
> >        /sda
> >        /sda1    # / (root)
> >        /sda2    # swap
> >        /sda3    # /home
> >        /sdb
> >        /sdb1    # C:
> >        /sdb2
> >        /sdb5    # D:
> >        /sdb6    # E:
> >        /sdb7    # F:
> >        /sdb8    # G:
> > Why is the  sd..  designation used?  I don't have a SCSI controller!
> > The Linux/UNIX documentation I have read refers to  hda, hdb, ...
> > as well as  SCSI drives referred to as  sda, sdb, ...
> > So I am confused as to what's correct.
> > Please explain what's going on.
> 
> Some distributions, including Ubuntu, have decided to use the sd(n) 
> designation for IDE drives, others have not done so (yet).
> 
> Obviously this has caused some confusion, witness your question.
> 
> This is due to the switch to the kernel's libata code, originally intended 
> just for SATA drives but apparently having been adopted for all IDE drives.
> 
> Google around if you want to learn more about this switch.
> 
> beww
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