Disk 2 and 3 Corupt

Joel Jaeggli joelja at darkwing.uoregon.edu
Tue May 23 04:47:40 UTC 2006

Luke wrote:
> Ok, I downloaded from this link, checkced the sha1sum (they were fine)

yeah that's always better than downloading again...

> and burned at speed 12 and then 2 (using ISO Recorder). Both times disk
> 2 failed the test.

one more thing to try would be disabling dma on the cdrom drive for the
install, ifyou would normally boot into the install off the cd by typing:


linux ide=nodma

it's a long shot but the verify has been known to fail on some hardware
using dma... once you get it installed it's another kettle of fish.


> Not sure what is going on. I will have to try another
> program I guess. I will get a copy of Nero and see how that works.
> Luke
> ----- Original Message ----- From: "Rick Stevens"
> <rstevens at vitalstream.com>
> To: "For users of Fedora Core releases" <fedora-list at redhat.com>
> Sent: Monday, May 22, 2006 4:54 PM
> Subject: Re: Disk 2 and 3 Corupt
>> On Mon, 2006-05-22 at 16:26 -0400, Luke wrote:
>>> I don't image I am the only person to bring this up, but can someone
>>> point
>>> me to a place where I can download discs 2 and 3 for the Fedora Core
>>> that do
>>> not contain corrupt packages?
>>> I have downloaded both from here:
>>> ftp://ftp.uninett.no/pub/linux/Fedora/core/5/i386//iso/
>>> I have tried downloading and burning to disk twice. Both times disk 2
>>> and 3
>>> were currupt (i.e.: Did not pass the integrity test, when I tried to
>>> install
>>> anyway, was unable to read from disk 2).
>> I use the kernel.org archives.  Try this link:
>> http://mirrors.kernel.org/fedora/core/5/i386/iso/
>> and download away.  Also look carefully at the content of the SHA1SUM
>> file.  After you download the .iso images, run:
>> sha1sum name-of-iso-file
>> The number that spits out SHOULD MATCH EXACTLY what the SHA1SUM file
>> says.  If not, you have a bad download.  If the SHA1 sums match, the
>> .iso file is clean, and you're having issues burning them to CDs.
>> NOTE: CD2 and CD3 of the FC5 distribution REALLY fill up a CD.  Make
>> sure you're using name brand 700MB CDRs (I lean towards Memorex and
>> TDK) and that you do NOT burn them at maximum speed.  For example, if
>> you have a CDR drive that can burn at 48x, try burning at 24x or even
>> 12x:
>> cdrecord dev=ATA:1,0,0 speed=24 name-of-iso.iso
>> cdrecord dev=ATA:1,0,0 speed=12 name-of-iso.iso
>> The reason is: CDs are written from the center of the disc out toward
>> the edge in a long, spiral track (like an old vinyl LP record, but in
>> reverse).  The faster the disc spins (to give you that higher read or
>> burn rate), the more likely the disc will "flutter" and the problem gets
>> worse the farther from the center you are.  Keeping the speed down will
>> reduce the flutter and give you a better chance at getting a good burn.
>> ----------------------------------------------------------------------
>> - Rick Stevens, Senior Systems Engineer     rstevens at vitalstream.com -
>> - VitalStream, Inc.                       http://www.vitalstream.com -
>> -                                                                    -
>> -                   "The bogosity meter just pegged."                -
>> ----------------------------------------------------------------------
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Joel Jaeggli (joelja at uoregon.edu)
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