Re: [Qemu-devel] Running Qemu on OS X

[Mike Kronenberg]

On 23.05.2008, at 05:47, C.W. Betts wrote:

> On May 21, 2008, at 3:48 PM, Mike Kronenberg wrote:
>
> > On 21.05.2008, at 22:34, C.W. Betts wrote:
> >
> > > I have a few questions about running Qemu on OS X.  First of all,  
> > > how do I specify an internal CD-ROM drive?  I'm trying to get OS/2  
> > > to install, but it keeps asking for the CD.  Also, is there any  
> > > way to speed up the console window?  It's very slow.
> >
> > Hi,
> >
> > just enter -cdrom /dev/cdrom this will trigger qemu to look for a  
> > CD-ROM in the first built-in CD-ROM drive.
> Sorry, but that doesn't work.  When I type qemu-img info /dev/cdrom,  
> I get this:
> image: /dev/cdrom
> file format: host_device
> virtual size: -8388607T (9223372036854775296 bytes)
> disk size: unavailable

/dev/cdrom is not present on OS X /dev.

OS X assigns the next free ID to the loaded CD-ROM
Something like /dev/rdiskX (X being dynamically assigned) or if you  
like the first partition on that disk its /dev/rdiskXs1.

if You pass -cdrom /dev/cdrom to qemu (to be more compatible with copy  
pasted arguments from *nix systems), qemu will try to find the first  
partition on the cdrom.
Presently on OS X (im not sure about how the current qemu drive code  
handles multisession CD-ROMs) you can only read the first session s0  
or s1 of a cdrom. Some installation CD-ROMs come with different  
sesssions for different tasks. These CD-ROMs do not work.

qemu-img can't handle /dev/cdrom.
Best bet is to create an image of the cd-rom with dd or Disk Utility.

Mike