[ale] FC7 and IDE disks

Greg Freemyer greg.freemyer at gmail.com
Tue Oct 30 16:09:58 EDT 2007


On 10/30/07, Michael H. Warfield <mhw at wittsend.com> wrote:
> On Tue, 2007-10-30 at 14:12 -0400, cfowler wrote:
> > I'm trying an install of FC7 to a USB disk.  Why does FC7 say my IDE
> > disk is sda.  I understand my USB disk being sdb but ide?  Did the
> > naming convention change?
>
>         That's the new convention with the newer 2.6 kernels.  The old pata
> driver is now being deprecated in favor of a unified ATA driver
> supporting both PATA and SATA that operates through the SCSI layer.
>
>         Couple of gotcha's...
>
>         If you have /dev/hd devices in /etc/fstab and up upgrade the kernel,
> you may find you can no longer mount your partition.
>
>         If you have more than 16 partitions on an IDE drive, you are going to
> be screwed.  SCSI only allows 16 partitions where as the old PATA IDE
> driver allowed more.  The minor number field for the partition is only 4
> bits wide for SCSI.
>

But, the old drivers/ide driver set can still be used via a boot
parameter.  (Don't recall what it is offhand.)

Greg
-- 
Greg Freemyer
Litigation Triage Solutions Specialist
http://www.linkedin.com/in/gregfreemyer

The Norcross Group
The Intersection of Evidence & Technology
http://www.norcrossgroup.com



More information about the Ale mailing list