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Re: How to install Fedora 7 to a CF card connected via IDE-CF adapter?

Alan Cox wrote:
CF should work. There are problems with some combinations of CF card and
adapter as newer cards often do MWDMA or UDMA but the older adapters
don't support this - a fact you can't autodetect.

It's also important to understand CF cards have two modes. When plugged
into an IDE cable via a convertor they act as if they were disk devices
and you should be able to install onto them without problem. If you plug
them into a PCMCIA card they appear as removable media and I suspect
Anaconda won't consider them a viable install target.


Thanks for the info regarding the newer cards and the Maximum Multi Word DMA (MWDMA) mode and Ultra DMA mode newer CF devices may use. The embedded devices have ide=nodma for SanDisk 64 MB cards and 128 MB cards to prevent lockups. Newer CF cards fail to work in these devices. I'll try removing the parameter to see if it allows newer and larger capacity CF cards to work on the power PC devices.

Your point regarding Anaconda seeing the card as a removable device sounds like it is causing no media to be detected. For USB hard disks running the installer in expert mode allowed detection of USB connected hard disks, maybe expert mode will allow detection of the CF adapter mounted devices. The original poster mentioned something to the effect that BIOS recognized the cards as 4 GB, a point I overlooked when "reading" and overlooking the original post content.


Political speeches are like steer horns.  A point here, a point there,
and a lot of bull inbetween.
		-- Alfred E. Neuman

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