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Re: [Xen-devel] IDE CD-ROM drive problem

The only platform I've been able to test this on so far is a VMWare setup (I 
don't imagine native hardware being different, as I've had the same results 
from both thus far), but here are the results.  If I boot now with no disk in 
the drive, it reports "No medium found" in the drive, even when I put a disk in 
the drive to mount.  If I boot with a disk in the drive, then it behaves the 
same as it did when I removed the block of code in xenolinux_block_open(). 
I will try and get the boot output to dump to a serial file and post it 
I concur, though, looks like bringing in all the CD-ROM code would be icky... 
Evan Deaubl 
Quoting Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>: 
> > Indeed - as the comments indicate, this is pretty gross stuff trying  
> > to work around the fact that we didn't bother porting all the cdrom  
> > stuff to do with media (and audio stuff etc).  
> >  
> > However I'd expect it to 'work' in the sense that it should produce  
> > the error "mount: No medium found" if there's no CD in the drive, or  
> > never trigger this if code if there was a CD in the drive at boot 
> > time. If you're getting "Not a valid block device" that seems like  
> > something else is going on...  
> >  
> > Can you post the output from Xen and XenoLinux booting if you have it? 
> >  
> >  
> > > If I remove this code, I can mount the CD-ROM with no difficulty.  I've 
> been 
> > > investigating the problem myself, but I figured I'd forward to the 
> experts in 
> > > charge who have been into this code a lot more than I have. 
> >  
> > Removing it completely is not the right thing to do, although it may  
> > well need to be fixed 'properly' (i.e. pull in all the cdrom crap :-(  
> I think I may have now fixed this problem in the unstable tree. I made 
> a few other cleanups at the same time -- I'd appreciate it if you can 
> pull teh updates and see if the problem has gone away (or got worse! 
> ;-).  

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