<html><head><meta http-equiv="Content-Type" content="text/html charset=windows-1252"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><br><div><div>On Jan 19, 2014, at 7:07 PM, Sanjib Das <<a href="mailto:cnt.sanjib@googlemail.com">cnt.sanjib@googlemail.com</a>> wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div dir="ltr"><div><div>Dear Concern,<br><br></div>Can any one give me some suggestion about file sharing. Cause I am following the link <a href="https://wiki.litmus-rt.org/litmus/LiblitmusViaNFS">https://wiki.litmus-rt.org/litmus/LiblitmusViaNFS</a> but still not succeeded.<br>
<br></div><div>I am trying to do this with the following command 'qemu-system-x86_64 -enable-kvm -cpu host -smp 2 -hda /home/sdas/images/ubuntu.backing.qcow2.img -m 1024 -name "ubuntu-qemu-cjk" -nographic -kernel "/home/sdas/litmus/litmus-rt/arch/x86_64/boot/bzImage" -append "console=ttyS0,115200 root=/dev/hda1" -gdb tcp::12345 -net nic -net user,hostfwd=::2222-:22' <br>
<br></div><div>And as a result eth0 in side the guest is configured automatically <br><br></div><div>From guest to host 'ping 10.0.2.2' is working<br>"root@ubuntu-qemu:~# ping 10.0.2.2<br>PING 10.0.2.2 (10.0.2.2) 56(84) bytes of data.<br>
64 bytes from <a href="http://10.0.2.2/">10.0.2.2</a>: icmp_req=1 ttl=255 time=2.28 ms<br>64 bytes from <a href="http://10.0.2.2/">10.0.2.2</a>: icmp_req=2 ttl=255 time=0.515 ms<br>^C<br>--- 10.0.2.2 ping statistics ---<br>
2 packets transmitted, 2 received, 0% packet loss, time 1001ms<br>rtt min/avg/max/mdev = 0.515/1.398/2.281/0.883 ms<br>root@ubuntu-qemu:~# <br>"<br></div><div>But Host to guest 'ping 10.0.2.15' not working<br>
<br>"sdas@debian:~$ ping 10.0.2.15<br>PING 10.0.2.15 (10.0.2.15) 56(84) bytes of data.<br>^C<br>--- 10.0.2.15 ping statistics ---<br>2 packets transmitted, 0 received, 100% packet loss, time 1006ms<br><br>sdas@debian:~$ <br>
"<br><br></div><div>ip route guest :<br>root@ubuntu-qemu:~# ip route<br>default via 10.0.2.2 dev eth0 metric 100 <br><a href="http://10.0.2.0/24">10.0.2.0/24</a> dev eth0 proto kernel scope link src 10.0.2.15 <br>
root@ubuntu-qemu:~# <br><br><br></div><div>ip route host:<br><br>sdas@debian:~$ ip route<br>default via 192.168.0.1 dev eth0 <br><a href="http://169.254.0.0/16">169.254.0.0/16</a> dev eth0 scope link metric 1000 <br><a href="http://192.168.0.0/24">192.168.0.0/24</a> dev eth0 proto kernel scope link src 192.168.0.101 <br>
sdas@debian:~$ <br><br></div><div>my host is debian 7 wheezy.<br></div><div><br></div><div>Any quick suggestion/ alternate tutorial / link/ will very helpful.<br></div></div></blockquote><br></div><div><br></div><div>I don’t believe that direct network access from the host to the guest is necessary to get NFS to work. With respect to host->guest networking, you can ssh into the guest OS by doing “ssh -p 2222 realtime@localhost”. If you want to set up a virtual network, I believe these instructions will be useful: <a href="http://wiki.qemu.org/Features/HelperNetworking">http://wiki.qemu.org/Features/HelperNetworking</a></div><div><br></div><div>Anyway, assuming that your NFS server on the host is working and your guest can ping the host, I believe your guest OS should be able to mount the host’s network drive. You’ve already shown that the guest can ping the host. Are you sure NFS is working on the host? What do the NFS logs say?</div><div><br></div><div>-Glenn</div><br></body></html>