Why sda instead of hda?

[worldttle]

Installed Fedora 7 with IDE drives but hard drives show up under /DEV as sda and sdb instead of hda and hdb.

Also Fedora does not see SCSI card.

Are the problems related?

[ppesci]

sdx notation is only by convenience and is a convention. Now in fedora, if your drive is USB, scsi or IDE will be transparent to the user. The kernel will deal with the differences.

Why do you sai fedora not see the scsi card?. Check it with the command:

dmesg

or see the file /var/log/messages

HTH

[lazlow]

For uniformity of tools all hard drives are seen as sdX format starting with F7 going forward.

Is it not seeing the SCSI or is it seeing it as a higher, unexpected, sdX?

[Brian1]

2.6 kernels have enabled pata to sata mode modules for most chipsets. Still IDE exist but most have moved over to the generic scsi interface as the main stay. Then all one needs to build is simply interfaces to it and not have to build a complete new interface and have to intergrate that within the kernel. For the most part IDE was the only one to do this. USB/ Firewire/ sata, scsi, mmc_block and all used the generic scsi interface.

Brian

[worldttle]

Thanks for the quick replies.

I have a Astra scanner connected via a PCI SCSI card. I have Xsane and Vuescan scanner software installed. During hardware boot the computer shows detection of the scanner attached to the SCSI card. However, neither Sane nor Vuescan can detect the scanner.

However, both of these programs worked with the same SCSI card and scanner with Fedora 6.

[stevea]

sdx notation is only by convenience and is a convention.


No, ppesci is right. It's more than a name change. There are layer changes in the driver interface and it has some implications when using low level disk ioctls to set uDma modes and such.

-S