On Mon, May 09, 2022 at 10:29:45PM +0200, Thomas Schmitt wrote: > Hi, > > J.A. Bezemer wrote: > > When the CD is scanned properly using this process, but the DVD fails, then > > your DVD is bad. Maybe the DVD has bad data on it (corrupted download), or > > the DVD burner is bad, or the DVD reader is bad. > > I agree in principle. But the particular reason for the firmware's refusal > to consider booting the DVD should be found out. > > So i would still be interested in seeing the output of > > xorriso -indev /dev/sr0 -toc -report_el_torito plain > > while the DVD is in the drive, and of > > xorriso -outdev /dev/sr0 -list_profiles > > regardless whether the medium is loaded or not. > (If there is more than one optical drive, the address might be /dev/sr1 or > /dev/sr2.) > > > Have a nice day :) > > Thomas >
If this is one of the strange machines with 32 bit UEFI firmware and a 64 bit processor - Intel Bay Trail laptop, for example - then the standard installers have problems - as outlined - and you'd need to find the multi-arch DVD to install from. If you use the multi-arch netinst to isntall a minimal Debian, you can always then use 64 bit DVDs to add packages with apt-cdrom. Hope this helps, all the very best, Andy Cater
