difference between /dev/hda to /dev/sd0

jaepi · 07-09-2007, 08:56 PM

hello there, i just want to ask what is the difference of having your IDE CD/DVD drive in /dev/sd0 rather than in /dev/hda? my friend and i have the same kernel version and distro (Ubuntu). the only difference is, my hard drive is detected in the file system of /dev/hda and his is in /dev/sd0. what do you think is the reason? thanks.

macemoneta · 07-09-2007, 10:51 PM

If he is running Fedora 7, it's because that release uses libata which handles all IDE devices as SCSI.

The /dev/sdX designation classically refers to SCSI devices, while the /dev/hdX designation refers to IDE.

However, in later kernels, all handling for IDE has been made consistent with SCSI naming (as was done with USB, Firewire and actual SCSI drives).

jaepi · 07-09-2007, 11:53 PM

thank you sir.