Hi, I was using the virt-manager to install a Fully Virtualized System, and I checked the option "Enable kernel / hardware acceleration", but when Im at the end (when I click in Finish) appear the follow error: virDomainCreateLinux() failed internal error End-of-file while reading PTY startup output Details: Unable to complete install 'libvirt.libvirtError virDomainCreateLinux() failed internal error End-of-file while reading PTY startup output Traceback (most recent call last): File "/usr/local/share/virt-manager/virtManager/create.py", line 677, in do_install dom = guest.start_install(False, meter = meter) File "/usr/lib/python2.4/site-packages/virtinst/Guest.py", line 647, in start_install return self._do_install(consolecb, meter) File "/usr/lib/python2.4/site-packages/virtinst/Guest.py", line 664, in _do_install self.domain = self.conn.createLinux(install_xml, 0) File "/usr/lib64/python2.4/site-packages/libvirt.py", line 480, in createLinux if ret is None:raise libvirtError('virDomainCreateLinux() failed', conn=self) libvirtError: virDomainCreateLinux() failed internal error End-of-file while reading PTY startup output ' But when I dont check the option "Enable kernel / hardware acceleration", the installation goes normal. What would be this Kernel / Hardware Acceleration ? [root@athlonam2 FC6_64]# lsmod | grep kvm kvm_amd 25297 0 kvm 64421 1 kvm_amd [root@athlonam2 FC6_64]# grep svm /proc/cpuinfo flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt rdtscp lm 3dnowext 3dnow pni cx16 lahf_lm cmp_legacy svm cr8_legacy flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt rdtscp lm 3dnowext 3dnow pni cx16 lahf_lm cmp_legacy svm cr8_legacy As u can see, KVM modules are running and my Processor has the flag SVM. Thanks, Att. Artur Baruchi