Using virt-manager and copying host CPU can still boot the guest OS (64-bit) virt-install however still is not doing the job. On 9/6/15, Bhasker C V <bhasker(a)unixindia.com&gt; wrote: > Hi, > > I have this setup > > > kernel: x86_64 version 4.2.0 > operating system (rootfs binutils etc.,) : i386 (ELF-32-bit) > qemu-system : version 2.4.0 qemu-system-x86_64 (i386 binary) > libvirt: 1.2.19 (i386 ) > > When I run the qemu-system-x86_64 binary with --enable-kvm, the guest > machine is working properly as hvm. So > QEMU can run x86_64 OS as hvm > > when I install using virt-install > virt-install --name debian --cdrom > ./debian-stretch-DI-a1-amd64-netinst.iso --disk /STOR/DEBIAN,bus=sata > --ram 1024 --graphics vnc > > I expect the 64-bit kernel to load and start install in the guest but > i get a complaint that the guest cannot boot since the cpu is not > 64-bit capable (please use a kernel appropriate for your CPU) > > I tried adding the machine option to virt-install > virt-install --name debian --cdrom > ./debian-stretch-DI-a1-amd64-netinst.iso --disk /STOR/DEBIAN,bus=sata > --ram 1024 --graphics vnc --machine pc-i440fx-2.0 > > No joy > > Tried changing the machine as hvm and also added --arch x86_64 > none of them help ! > > Can someone tell me how to do this ? > Just because the binutils and the OS is 32-bit I think libvirt must > not refuse to hvm a x86_64 guest since the kernel is still x86_64 > kernel and so so the kvm (module) > > I am guessing I am missing some option passed to virt-install or this > is a limitation purely on libvirt (not qemu or kvm) > > Moreover QEMU is able to run a hvm guest x86_64 and manually running > qemu does bootup the 64-bit kernel guests. >