This issue has gone with qemu-kvm commit d4adede84de96d631f2c6eff2c01eae00b14a110.
** Changed in: qemu Status: Invalid => Fix Released ** Changed in: qemu-kvm (Ubuntu) Status: Triaged => Fix Released -- qemu fail to parse command "-net none" https://bugs.launchpad.net/bugs/599617 You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. Status in QEMU: Fix Released Status in “qemu-kvm” package in Ubuntu: Fix Released Bug description: Host OS:ia32e Guest OS :32e and pae kvm.git Commit:a63e16c655f9e68d49d6fae4275ffda16b1888b2 qemu-kvm Commit:97011c7fce92f8c0928c9e94e9896f0dca1bdeb9 Host Kernel Version:2.6.35-rc3 Bug detailed description: -------------------------- when use command "qemu-system_x86 -smp 2 -m 1024 -hda /path/to/img -net none" to boot up a guest, guest cannot boot up. and no error message displayed.