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Re: enabling CONFIG_IDEDMA_ONLYDISK



Frederik Schueler wrote:

Hi,

On Sun, Aug 29, 2004 at 12:00:07PM +0200, Christoph Hellwig wrote:
We have tons of reports for broken CDs in the BTS, and I noticed that
unlike the commercial distibution vendors we don't have
CONFIG_IDEDMA_ONLYDISK set ibn our install kernels.  I'd rather play
safe and slow in this case.

I suggest setting this only on the generic installer kernels, so users
can install the system and activate DMA for their drives later when
installing the optimized kernel.

I would prefer installing hdparm, with a default config file that turns on appropriate options for /dev/hda which surely is not a CD drive, and with comments describing how to set options for other drives.

It should be run at boot time with a script in /etc/init.d, but not run by default.

Ensuring the installer knows what to do by sending email to root is a sound final touch.

As a user who installs his own software, find there are many things I should know to do but don't and that extends to software that is really useful and that is often not installed, but I think should be. In this category I include
hdparm
smartmontools
lmsensors

The first two are essential for anyone who has disk drives, the third can warn you you're cooking your computer.



--

Cheers
John

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