On Fri, Aug 31, 2007 at 03:09:19PM -0400, Christopher Friedt wrote: > Anthony Liguori wrote: > >I have no idea what you're talking about. QEMU doesn't care whether you > >use a physical disk or a file. It handles geometry the same way. > > > >Is there a concrete example that doesn't work that you think should? > > Yes, a simple example is running CentOS after a typical install from a > hard disk image. > > If Qemu is started with the installation cdrom (-cdrom CentOS-1of4*.iso) > the installation creates several partitions on the virtual disk, > including /boot, and a logical disk containing /. The first 512 Bytes of > the disk image are assumed to be the MBR of the disk, which is where the > installation will write the boot loader. > > After installation, qemu is started with > > qemu -hda centos.img -boot c
That scenario works just fine for me when I try it with either RHEL-5 or Fedora Core 6 / 7. QEMU reads the MBR from the disk I pass with -hda, whether that's backed by a physical device, or a file backed disk & will succesfully boot the OS. I just followed the recommended partitioning scheme that RHEL-5 installer suggests making no changes. Dan. -- |=- Red Hat, Engineering, Emerging Technologies, Boston. +1 978 392 2496 -=| |=- Perl modules: http://search.cpan.org/~danberr/ -=| |=- Projects: http://freshmeat.net/~danielpb/ -=| |=- GnuPG: 7D3B9505 F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 -=|