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Having trouble installing a piece of hardware? Want to know if that peripheral is compatible with Linux?

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Old 10-26-2007, 08:43 PM   #1
atheist
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IDE hard drive won't show


My two primary hard drives are SATA disks I have no problem with. Then I add an old IDE disk (that my BIOS has no problem seeing, by the way) to my box. This disk should show up as /dev/hda, right?

Because it doesn't. What could be the problem here?
 
Old 10-26-2007, 10:31 PM   #2
jschiwal
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If it is a recent kernel, it will be listed as /dev/sda# instead. Mine does, which is version 2.6.22-9.

Last edited by jschiwal; 10-26-2007 at 10:33 PM.
 
Old 10-26-2007, 10:45 PM   #3
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Quote:
Originally Posted by jschiwal View Post
If it is a recent kernel, it will be listed as /dev/sda# instead. Mine does, which is version 2.6.22-9.
I thought that was only for SATA disks? Anyway, there's not /dev/sdc... just /dev/sda and /dev/sdb, my SATA disks.
 
Old 10-26-2007, 11:07 PM   #4
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The SATA module libata also supports PATA (IDE) drives. Since libata uses SCSI subsystem modules your IDE would also show up as a sda device.

hda is the 1st controller master drive. How is the drive connected to the computer? Is the BIOS recognizing the drive as such?
 
Old 10-26-2007, 11:11 PM   #5
lazlow
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The dropping of hdX drives is part of the newer kernels. The process is new enough its behavior is sometimes difficult to predict. On some of the systems I have seen it has replaced (when added to an existing system) sda, in other cases I have seen it skip a few letters sdd. I usually use something like gparted to figure out what the drives are being labeled. Depending on your pata controller support for it may have dropped through the cracks (assuming a unusual controller).
 
Old 10-29-2007, 07:36 PM   #6
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It's connected to its own IDE cable (no switch on the whole master/slave thingamajik). The BIOS recognizes it and I can change the boot sequence of the hard disks there.

(What I'm using this disk for is Windows XP, and really, the only reason why I want to be able to see it is so that I can add it to Grub and select to boot to Windows XP there instead of always having to exchange the boot sequence in the BIOS when I want to boot into Windows.)

Gparted doesn't see my disk, though, just sda and sdb. Is it possible that there's some kind of support in the kernel that I left out that I need for IDE drives to work? (My CDROM and both other hard drives are SATA.)
 
  


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