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. ======================================================================= Proboscis: The rudimentary organ of an elephant which serves him in place of the knife-and-fork that Evolution has as yet denied him. For purposes of humor it is popularly called a trunk. -- Ambrose Bierce ------------------------------------------- Aaron Konstam Computer Science Trinity University One Trinity Place. San Antonio, TX 78212-7200 telephone: (210)-999-7484 email:akonstam@xxxxxxxxxxx
