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Re: boot: ext3 fs not supported by kernel

Theodore Ts'o wrote:
> On Tue, Jun 17, 2003 at 07:30:34PM +0200, Juri Haberland wrote:
>> Well, this would mean to recompile the kernel, which shouldn't be
>> necessary IMO.
>> Usually the following line gives me maximum performance:
>> hdparm -d1 -c3 -m16 -u1 -a64 -A1 (and possibly -W1, but it could be
>> dangerous especially wiht journalled FS).
> What about the hdparm -X parameters for Ultra-DMA setup?  My
> understanding is that the DMA-chipset specific codes would set these
> correctly if necessary, but I'm not sure I'd want to mess with them
> myself.  (Again, this is why outside my area of expertise; all of the

This is also my understanding. If your chipset is well supported, the
driver should set up your controller and your devices to the maximum
[U]DMA speed, but it may not actually activate the DMA transfer and falls
back to PIO.

> Linux developers who spends too much time working in the IDE space
> seems to go insane, and I want to avoid that outcome.  :-)

No comment ;)


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