Cam Macdonell wrote: > On Wed, Jul 21, 2010 at 2:27 AM, Dallas Lee <mswpl...@gmail.com> wrote: >> Hi, >> I have trying to use the virtio-9p for my linux in QEMU, but without >> success. >> Here is my option for booting my qemu: >> i386-softmmu/qemu -kernel bzImage -append "console=ttyS0 >> video=uvesafb:ywrap,overlay:rgb16,480x800...@60 root=/dev/nfs rw >> nfsroot=10.0.2.2:/root,udp ip=10.0.2.16:::::eth0:none 5" -net >> nic,model=virtio -net user -soundhw all -usb -serial >> telnet:localhost:1200,server -vga std -m 512 -L ./pc-bios -bios bios.bin >> -virtfs >> local,path=/home/dallas/nfs,security_model=passthrough,mount_tag=v_tmp >> >> The virtio network is working, I could mount the nfs through virio net. >> And in the guest linux, I tried to mount v9fs by using following command: >> mount -t 9p -o trans=virtio -o debug=0xFFFF v_tmp /mnt >> but unfortunately I got the error: >> mount: mounting v_tmp on /mnt failed: No such device >> And I can't find the v_tmp neither in /sys/devices/virtio-pci/virtio1/ nor >> in /sys/bus/virtio/drivers/9pnet_virtio/virtio1/ >> And before building the kernel, I enabled the Plan 9 Ressource Sharing >> Support under File System/Network File System, I also enabled the following >> configures: >> PARAVIRT_GUEST: >> -> Processor type and features >> -> Paravirtualized guest support >> LGUEST_GUEST: >> -> Processor type and features >> -> Paravirtualized guest support >> -> Lguest guest support >> VIRTIO_PCI: >> -> Virtualization (VIRTUALIZATION [=y]) >> -> PCI driver for virtio devices >> VIRTIO_BLK: >> -> Device Drivers >> -> Block devices (BLK_DEV [=y]) >> -> Virtio block driver >> VIRTIO_NET: >> -> Device Drivers >> -> Network device support (NETDEVICES [=y]) >> -> Virtio network driver >> Would you please help me to find out the problem why I couldn't mount the >> v9fs? >> Thank you very much! >> BR, >> Dallas > > Hi Dallas, > > what does 'lspci -vv' in the guest show? Is there a device for virtio_9p? > > do you have > > CONFIG_NET_9P_VIRTIO=y > > in your kernel's .config?
Can you please check if /proc/filesystems has 9P in it? Check if you have '9' in any of the following files cat /sys/devices/virtio-pci/virtio*/device Also in that directory you will have a "mount_tag" file. If any of the above are missing, please make sure that you have following options enabled in the guest kernel config. CONFIG_NET_9P=y CONFIG_NET_9P_VIRTIO=y CONFIG_NET_9P_DEBUG=y CONFIG_9P_FS=y Thanks, JV > > Cam >
