Problems with medium check for FC2 despite of proper checksum! HELP

[Phil Schaffner]

On Fri, 2004-06-18 at 10:30 -0700, Mark wrote:
> Hi, 
> 
> I have some very weird problems with the core 2 i386 iso files.
> ...snip... However, on all the machines in the office I get a CRC error
> when I try copying the iso file off the CD onto the harddisk.
> 
> Does anybody have any idea what the hell is going on there?

Have you tried media from a different batch?  Some CD media is really
crappy, and some readers don't like some media that works on others.

> I am not doing this for the first time, I always burn all kinds of CDs with
> the same computers and programs. I burned a bunch of copies of FC1 and they
> all installed fine.
...
> So to summarize this, here are my questions:
> 1. If the checksums are ok, can I be sure that the iso files were downloaded
> ok? I guess it is not *ABSOLUTELY* guaranteed but the likelyhood is *REALLY*
> high

There is a small but finite probability that the checksums could match
but the isos be bad, but the probability of this happening on 2 isos is
vanishingly small.  On all 4 ~= 0.0.

> 2. Could the hwdata RPM be corrupt even though I am able to read the header
> info? How can I extract all the files from the RPM without installing them
> to really read the RPM all the way to the end?

# rpm2cpio hwdata-version.rpm > file.cpio

> 3. How do I get this to work? Is there anything special I have to consider
> when burning the iso images that's different fomr how it worked for FC1?

A workaround would be to loopback mount the iso images, copy them
somewhere, and do a network install after adding the isolinux/vmlinuz
and initrd.img to grub.conf, or using boot.iso, as outlined in numerous
posts.

Phil