On Tue, 2004-11-16 at 08:23, Paul Howarth wrote:
Most likely all of your CDs are fine. Try booting using "linux ide=nodma".
I had this problem too and was trying to figure out what was wrong. I have not yet tried the linux ide=nodma solution. When should I be entering that? When I'm first booting for the install?
Yes; at the first prompt you get after booting the CD, where you would normally just press return to start the installer, type "linux ide=nodma" and then press return.
You can check that your ISO downloads are OK by comparing the md5sums with those published on the download site:
md5sum -c MD5SUM
So I have done that. The sums all check. It seems I have the isos all downloaded correctly.
Yes.
You can check that your burned CDs are OK by getting the data back off the CD and either comparing the file with the original ISO or checking its md5sum.
dd if=/dev/cdrom of=burned-iso-1.iso bs=16384 cmp burned-iso-1.iso FC3-i386-disc1.iso md5sum burned-iso-1.iso (then compare the result with that in the MD5SUM file)
So this does not work for me. The dd command completes with an error for every CD I try this with. When I do the cmp command, it always tells me that the dd-created iso is short, which it is by byte count. Everything appears to match up to that point, but it looks like dd isn't getting all the info.
That does look suspicious. Do you get the same issue if you boot into your current installation with ide=nodma (try adding it to the end of the kernel line in your /etc/grub.conf and rebooting)?
Now, I also tried this on an older FC1 CD that I had laying around and the same thing happens.
I'm not very familiar with dd, having always used it to simply do basic conversions (byte-swapping, etc.). Does use of this command really create a full iso image? Knowing what I know about it, I would think that it would just pick up the user data in the file system and that you would still be missing the TOC info, etc. Does that explain the file size difference?
The ISO filesystem written to the CD *is* the user data; you shouldn't be getting back anything else.
Paul.
