Re: Side topic to: How to burn Fedora DVDs to avoid readahead bug?
Frode Petersen wrote:
Andre Robatino skrev:
> When I burned the Fedora ISOs to CDs, I used cdrecord with padding
> to avoid the readahead bug - see
>
> http://www.troubleshooters.com/linux/coasterless.htm
>
> for how. In short, you use something like
>
> cdrecord -v dev=/dev/cdrom -dao -pad padsize=63s FC-6-i386-disc1.iso
>
> It turns out that the same precaution is necessary with DVDs, and
> until recently I was able to use cdrecord for this, like
>
> cdrecord -v dev=/dev/dvd -dao -pad padsize=63s FC-6-i386-DVD.iso
>
> even though a lot of ugly-looking error messages appeared before the
> burn commenced. But in the last month or so, instead of burning,
> cdrecord simply gives up. See
>
> https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=233745
This is a very long shot, and probably misses the barn completely, but
since you said that this change occured recently, I wonder if you
experience the same thing as I do (also with recent isos).
If you burn the CD image and try to boot it, does the installer find
the media after you tell it to install from 'Local CR-ROM'? (I use the
x86_64 iso, so there might be a difference).
Frode
The problem I'm referring to is only with DVDs, since cdrecord
continues to work perfectly well with CDs. The first Fedora DVD ISO I
burned was just a few months ago, after FC6 came out. I did some tests
burning DVDs in various ways and running the equivalent of mediacheck
(/usr/lib/anaconda-runtime/checkisomd5 from the anaconda-runtime
package) but haven't done a DVD install yet. Of course it's possible to
go back to burning half a dozen CDs as a last resort.