On 16/11/2007, Philipp Gühring <[EMAIL PROTECTED]> wrote: > Hi, > > > My questions are as follows: > > 1) I know -hdc and -cdrom cannot be called at the same time, but i have > > no luck getting an image to be mounted with -hdb or -hdd. > > For -cdrom you need ISO images. > For -hd[a-d] you need harddisk-images, which are done like this > dd id=/dev/hda of=myimage.img > qemu -hda myimage.img
On systems where mounting is done manually you can use the ISO filesystem on a harddisk without problems. You can also mount filesystems from a partitioned image (what you call harddisk image) on a cdrom. So this is not true. > > You can´t dd a directory. You could mkisofs a directory or you could use the > Samba sharing to hand over a directory. > > > The same image > > I can successfully mount with -cdrom cannot be mounted with either -hdb > > or -hdd, > > Then it´s likely an ISO image, and not a harddisk image. > > > What's up there. I could not figure out from the manuals if > > these should just be dd'ed images a directory or iso? dd just makes a copy. You can use the device or a dd'ed copy of the device (image) and it makes no difference. dd and cp can often be used interchangeably. > > You have to dd a whole harddisk (not just a partition) > > > 2) Are floppy images restricted to exactly 1.44MB created with dd? I > > cannot mount anything with the floppy switches either which is probably > > a size constraint I dont meet. > > I don´t know. > > > 4) What is the attainable USB speed? Full USB-1 ? > > I think speed is something virtual at that point, but I am not sure. Yes, with virtual devices you can reach any speed the computer can do. With physical devices you can probably reach "full speed" (12 MB/s) or "slow speed" (1.5 MB/s) if your computer is fast enough. Regards