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Old 12-01-2008, 05:47 PM   #1
LQ Newbie
Registered: Dec 2008
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Exclamation linux device driver

why/How to know that ide hdd use /dev/hda driver. why it is not use /dev/sda
or other what is the process to know that unknown device will use following driver.
Old 12-01-2008, 11:20 PM   #2
Registered: Nov 2005
Distribution: Fedora, Redhat
Posts: 372

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Traditionally IDE devices were named /dev/hdX; and SCSI devices were /dev/sdX.

That changed, I believe, with the 2.6 kernel. IDE devices are now named /dev/sdX.
Old 12-02-2008, 12:18 AM   #3
Registered: May 2007
Location: California
Distribution: Slackware/Ubuntu
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I am not sure I understand your question.
udev determines how a device will be assigned according to the udev rules. In other words, udev determines weather it is hdc, hda, etc..... Then fstab assigns ownership, permissions, and mount point.

google udev tutorial

Hope this helps.
What do you need the info for anyways?

Also, one way to find the device assignment is
fstab -l


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