Comment 2 for bug 36664

There is no sensible way to go through and try out hdparm options as you're suggesting. However, if the kernel can know that these options are safe for your hardware, perhaps it could enable them automatically without the need for hdparm.

To set hdparm.conf options in the installer, you can install in expert mode to be asked the cdrom-detect/cdrom_hdparm question. Answering -d1 -c3 would get the dma and io32_support parameters you're setting for your CD. We have no support for asking for hard disk hdparm.conf options in the installer at present, but I strongly believe that those should get better defaults in the kernel rather than adding installer UI for it.