[syslinux] isolinux 2.0+ won't boot from DVD
Taylor, ForrestX
forrestx.taylor at intel.com
Thu Jun 19 16:27:18 PDT 2003
H. Peter Anvin wrote:
> Taylor, ForrestX wrote:
> > H. Peter Anvin wrote:
> >
> >> You're not booting from this directory, though, presumably, so I
don't
> >> see how that would matter...
> >
> >
> > Correct, I am booting from the isolinux directory. However, if I
remove
> > the SRPMS directory, it boots up fine. Another quirk is that if I
make
> > the iso image small enough to fit on a CD, and I still have the SRPMS
> > directory, the CD will boot while the DVD will not.
> >
>
> OK... this is bizarre. The fact that it's a CD versus DVD difference
> automatically means that the BIOS is messed up in some way; ISOLINUX
> doesn't know and doesn't care, and shouldn't need to care about the
> difference.
>
> Even so, this is utterly bizarre. The only think I can imagine is that
> the BIOS somehow misdetects the DVD as something other than El Torito
> (UDF?) when the SRPMS stuff is on there...
>
Indeed it is bizarre. Especially when isolinux-1.75 works fine. Also,
I have tried the DVD-RW on several machines with the same result.
Interestingly enough, when I boot to Red Hat Linux 9 and try to mount
the DVD (or any DVD that I have created--bootable or not), I get this in
/var/log/messages:
Jun 19 15:22:38 test-box kernel: udf: registering filesystem
Jun 19 15:22:38 test-box kernel: UDF-fs: No VRS found
and this from mount:
/dev/cdrom on /mnt/cdrom type iso9660 (ro,nosuid,nodev)
However, on Red Hat Linux 7.2 (the machine with the DVD-RW), I get this:
Jun 19 16:23:47 test-box2 kernel: ISO 9660 Extensions: Microsoft Joliet
Level 3
Jun 19 16:23:49 test-box2 kernel: ISO 9660 Extensions: RRIP_1991A
/dev/cdrom on /mnt/cdrom type iso9660 (ro,nosuid,nodev)
...but the DVD doesn't boot from this machine either.
Any other suggestions? I may just have to chalk this up to strange
BIOSes and revert to isolinux-1.75.
Thanks,
Forrest
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