Dave Gutteridge wrote:
It's not a dumb question at all, at least not to me. I do not know how
to "boot with ide=nodma". How do I set that so that the boot process
will execute with that configuration?
You can set that in your current grub.conf file:
kernel /boot/vmlinuz-2.6.12-1.1398_FC4 ro root=LABEL=/ ide=nodma
Or, if you're starting from scratch (with an install CD/DVD in the
drive), type 'linux ide=nodma' at the prompt.
Or, if you already have it installed, you'll have to go through the
boot sequence to do that (at the splash page.) I haven't done that in a
long time so I don't remember the sequence of commands to get to edit
the boot line, but I'm sure someone here can help with that.
Perhaps I don't understand the implications of that command, but that
does seem to run counter to what I've been hearing so far. I had
gained the impression that DMA is something I want to have running for
optimal performance, and that my current DMA configuration is somehow
flawed. Am I wrong in my understanding that DMA is always desireable?
DMA is desirable, yes, however it may not always be desirable. In
your case, with the DVD drive giving DMA errors, I'd at least try
running the system without dma on the IDE bus to see if there's any kind
of difference at all. I have several FC3 and one FC4 machine running
just fine like that.
--
W | I haven't lost my mind; it's backed up on tape somewhere.
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Ashley M. Kirchner <mailto:ashley@xxxxxxxxxx> . 303.442.6410 x130
IT Director / SysAdmin / Websmith . 800.441.3873 x130
Photo Craft Laboratories, Inc. . 3550 Arapahoe Ave. #6
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