Re: Two concurrent floppies?

Alan Cox (alan@lxorguk.ukuu.org.uk)
Tue, 3 Jun 1997 22:01:37 +0100 (BST)


> I have (for no other reason than it looks pretty cool) two 3.5" HD floppy
> drives, and it seems that I can only have one running at any given time.
> eg. dd if=/dev/fd0 of=image0 bs=64k & dd if=/dev/fd1 of=image1 bs=64k
> will only read from 1 drive at a time. This is obviously not a big
> problem, and I tend only to notice when dd'ing RH install disks, but I'd
> be interested to hear whether this is a chipset/fdc thing of a driver
> problem.

Neither the floppy controller nor the motherboard DMA can do two things
at once. This is actually a right pain in the arse with floppy tape drives.

Alan