[BBLISA] Why do Linux rescue CDs make SATA disks look like SCSI ?

[Brian McAllister]

>>> On 1/14/2009 at 19:22:53 EST, Brian O'Neill wrote:

  > I believe it has been a general push in the latest kernels to totally
  > abstract the disk controllers as scsi devices. Although there is some
  > backwards compatibility for purposes of upgrades, new installations
  > favor the SCSI emulation. Since the Live CDs are generally the latest
  > kernel and "start fresh" like a new installation, they use this as
  > well.

It seems to be specific to SATA.  When I boot the RHEL4 CD on a system with
regular ATA disks, they appear as hdX.

It seems foolish for rescue mode, as there are features of ATA that cannot
be used through SCSI (such as SMART) that are useful in working with broken
systems.

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Brian McAllister                                   Senior Software Engineer
mcallister at mit.edu                      Bates Research & Engineering Center
(617) 253-9537                                                Middleton, MA