FC3 mediacheck

[akonstam at trinity.edu]

On Fri, Nov 12, 2004 at 10:12:17PM -0500, Erik Hemdal wrote:
> 
> > >
> > >>md5sum -c MD5SUM
> > >>
> > >>I've already indicated this once. After successful MD5SUM check - boot
> > >>with 'linux ide=nodma' and then do the MediaCheck.)
> 
> I think this comment was from Satish about ide=nodma.  Why is that
> necessary?  I've encountered the mediacheck failures similarly for the
> first time ever.  If the drive operates normally, why do we need nodma
> in order to check only disk2 and disk3 of the CD set?  
> 
> I'm not intending this as disrespectful to anyone; I'm truly curious
> about it.  Out of the four install images, all four pass the MD5
> checksum test, and two out of four pass the mediacheck.  On my CD
> writer, cdrecord reports that the buffer was always adequately filled
> and burnfree protection was never needed.  So assuming the integrity of
> the media is OK (seems to be, since cdrecord reports no errors and the
> CD is readable), I'd suspect a problem with the original ISO image. 
> Whether you use DMA or not on your drive doesn't seem to have any
> bearing on things....else other I/O would have trouble too.
> 
> Am I missing something?  
> 
> Erik
> 
I don't know what you are missing but with some hardware the ide=nodma
is necessary for to mediacheck to work and the installation from CD's
to work without getting read errors.
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-------------------------------------------
Aaron Konstam
Computer Science
Trinity University
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San Antonio, TX 78212-7200

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email:akonstam at trinity.edu