Bug 165147 - Media check fails way too often
Media check fails way too often
Product: Fedora
Classification: Fedora
Component: anaconda (Show other bugs)
i386 Linux
medium Severity medium
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Assigned To: Anaconda Maintenance Team
Mike McLean
Depends On:
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Reported: 2005-08-04 13:44 EDT by Craig
Modified: 2007-11-30 17:11 EST (History)
1 user (show)

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Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2005-08-08 17:57:05 EDT
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RHEL 7.3 requirements from Atomic Host:
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Description Craig 2005-08-04 13:44:56 EDT
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7b) Gecko/20040316

Description of problem:
Starting with FC3 and with FC4, I have extreme difficulty getting burned CDs to work. If I mount the CDs they look OK, when I boot off them it seems to go OK, but then they fail the media check. If I ignore the media check and install anyway, it will abort sometime during RPM installation. Youd think this was a hardware issue with my system, but I've tried burning CDs using 2 different CD burners and one DVD burner, using 3 different computers. I've tried redownloading the iso images, doesn't help. Burning anything other than the Fedora CDs works fine. Happens nearly all the time. Only way I was able to get FC4 installed was using the DVD image.

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:
1. Download iso images
2. cdrecord -v -eject FC-whatever.iso
3. Boot from install CD
4. Anaconda's media check

Actual Results:  CDs reported as failing media check

Expected Results:  CDs should pass so I can install the friggin thing

Additional info:

This never happened with RedHat through RH9, nor with FC2. FC3 and FC4 I can't use CD isos, though a DVD iso usually works... but not all my computers can boot off DVD-ROM so I can't upgrade those machines. If this continues to be a problem, I'm going to have to abandon RedHat which I've been using for almost 10 years.
Comment 1 Andre Robatino 2005-08-05 10:26:12 EDT
  This has affected me since the first version which included the mediacheck,
which was back around 7.3.  The bug got ported from the 2.4 to the 2.6 kernel. 
I have 2 machines and it only affects one of them.  I am able to check the discs
using dd and sha1sum on a Solaris machine, but the same trick doesn't work for
me on Linux.  It also causes failure (claim of corrupted package) in the middle
of an install.  What I do now is to run the install using ide=nodma, which
prevents the failure, and then remove it from grub.conf (where it's
automatically included) afterwards.  If I run mediacheck itself using ide=nodma,
it either completes successfully with "passed" or hangs shortly before or after
reaching the end of the disc.  If it hangs on one or more discs, I just go ahead
and install, and it works.
Comment 2 Jeremy Katz 2005-08-08 17:57:05 EDT
Unfortunately, CD and CD writer reliability is beginning to mirror that of
floppies.  What software you use to write the cds seems to make a huge
difference.  Also, I'd suggest burning at a slower speed than what the
media/drive claim as their "maximum" as you'll get far better results burning at
the slower speeds.

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