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There are some patches available, but you must get one for your controler. Find out what controler you have. If a patch is available, download it. Then get the latest kernel from <a href="http://www.kernel.org/" rel="ugc">http://www.kernel.org/</a>. You need a good, unmodified kernel to patch. RH kernel is not. <br />
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The best place to find out how to do this is <a href="http://linuxdoc.org/" rel="ugc">http://linuxdoc.org/</a>.<br />
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I have an abit motherboard with a highpoint ata66 and it is working for me.<br />
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If you have partition magic 4.0 or newer and keep /boot and / separate you can load on ata33, patch and compile. Copy / to ata66, add it to lilo and it will boot. That's what I did. Then lilo from / on ata66 and delete / on ata33.<br />
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Or you can plug the drive into ata33, patch, and then plug into ata66. 
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There are some patches available, but you must get one for your controler. Find out what controler you have. If a patch is available, download it. Then get the latest kernel from http://www.kernel.org/ [http://www.kernel.org/]. You need a good, unmodified kernel to patch. RH kernel is not.

The best place to find out how to do this is http://linuxdoc.org/ [http://linuxdoc.org/].

I have an abit motherboard with a highpoint ata66 and it is working for me.

If you have partition magic 4.0 or newer and keep /boot and / separate you can load on ata33, patch and compile. Copy / to ata66, add it to lilo and it will boot. That's what I did. Then lilo from / on ata66 and delete / on ata33.

Or you can plug the drive into ata33, patch, and then plug into ata66.

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Thanks, can you point me in the direction of the patch sites, i know of the /pub/linux/people/kernel/h<wbr />endrick site, but there are obviously others? &nbsp; When you talk of a controller, is that offboard, i.e.a plug in card? &nbsp; I have an onboard AMD Irongate controller which could be a problem.
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Thanks, can you point me in the direction of the patch sites, i know of the /pub/linux/people/kernel/hendrick site, but there are obviously others?   When you talk of a controller, is that offboard, i.e.a plug in card?   I have an onboard AMD Irongate controller which could be a problem.

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Does anyone know if there is a kernel patch available that enables DMA66 from a hard drive under Linux. &nbsp; I know the latest stable kernel only supports Ultra DMA33.
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Does anyone know if there is a kernel patch available that enables DMA66 from a hard drive under Linux.   I know the latest stable kernel only supports Ultra DMA33.

Ultra DMA66 under Linux

Linux is a UNIX-like open source operating system with hundreds of distinct distributions, including: Fedora, openSUSE, Ubuntu, Debian, Slackware, Gentoo, CentOS, and Arch Linux. Linux is generally associated with web and database servers, but has become popular in many niche industries and applications.

Linux

A Linux distribution is an operating system made as a software collection based on the Linux kernel and, often, on a package management system and are available for a variety of systems. A typical Linux distribution comprises a Linux kernel, GNU tools and libraries, additional software, documentation, a window system (the most common being the X Window System), a window manager, and a desktop environment. Most Linux systems are open-source software made available both as compiled binaries and in source code form, allowing modifications to the original software. Over three hundred distributions are in active development, including commercially backed distributions (such as Fedora, openSUSE and Ubuntu) and community-driven distributions (such as Debian, Slackware, Gentoo and Arch Linux).

Linux Distributions

Kernel and system programming is the process of creating the software necessary for a computer or device to function and operate other programs. Some operating systems (such as Microsoft Windows) are proprietary, but others, such as the various Linux distributions, are open source.