On Tue, 2011-08-09 at 19:59 +0300, Avi Kivity wrote: > On 08/09/2011 06:33 PM, Pekka Enberg wrote: > > This patch updates 'kvm run' to boot to host filesystem via 9p '/bin/sh' by > > default: > > > > $ ./kvm run > > # kvm run -k ../../arch/x86/boot/bzImage -m 320 -c 2 --name guest-3462 > > [ 0.000000] Linux version 3.1.0-rc1+ (penberg@tiger) (gcc version 4.4.3 (Ubuntu 4.4.3-4ubuntu5) ) #7 SMP PREEMPT Tue Aug 9 16:39:20 EEST 2011 > > [ 0.000000] Command line: notsc noapic noacpi pci=conf1 reboot=k panic=1 console=ttyS0 earlyprintk=serial init=/bin/sh root=/dev/vda rw root=/dev/root rootflags=rw,trans=virtio,version=9p2000.u rootfstype=9p > > > > [snip] > > > > [ 1.803261] VFS: Mounted root (9p filesystem) on device 0:13. > > [ 1.805153] devtmpfs: mounted > > [ 1.808353] Freeing unused kernel memory: 924k freed > > [ 1.810592] Write protecting the kernel read-only data: 12288k > > [ 1.816268] Freeing unused kernel memory: 632k freed > > [ 1.826030] Freeing unused kernel memory: 1448k freed > > sh: cannot set terminal process group (-1): Inappropriate ioctl for device > > sh: no job control in this shell > > sh-4.1# > > > > Most kernels won't have 9p built-in, so how about building a tiny initrd > to load the needed modules? > > btw, I get > > # ./kvm run > # kvm run -k ../../arch/x86/boot/bzImage -m 1728 -c 24 --name guest-10193 > <hang> > This is usually the case of missing serial console support in the guest kernel. You can either enable these: CONFIG_SERIAL_8250=y CONFIG_SERIAL_8250_CONSOLE=y Switch to virtio console using '--console virtio', or boot into a graphical console using '--sdl' or '--vnc'. -- Sasha. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
