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<DIV>On 2013-08-08 17:06 , <A href="mailto:berrange@redhat.com">Daniel
P. Berrange</A> wrote:</DIV>
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<DIV>On Thu, Aug 08, 2013 at 05:00:38PM +0800,
hzguanqiang@corp.netease.com wrote:</DIV>
<DIV>> On 2013-08-08 16:53 , Daniel P. Berrange wrote:</DIV>
<DIV>> On Thu, Aug 08, 2013 at 03:56:35PM +0800,
hzguanqiang@corp.netease.com wrote:</DIV>
<DIV>> > But when I did the same thing under libvirt of version
1.1.0 with debian host OS, the execution result changed:</DIV>
<DIV>> > </DIV>
<DIV>> > #disk info of host</DIV>
<DIV>> > hzguanqiang@debian:~$ df -hl</DIV>
<DIV>> >
Filesystem
Size Used Avail Use% Mounted on</DIV>
<DIV>> >
rootfs
4.0G 1.6G 2.2G 42% /</DIV>
<DIV>> >
udev
10M 0 10M 0% /dev</DIV>
<DIV>> >
tmpfs
4.8G 468K 4.8G 1% /run</DIV>
<DIV>> >
/dev/disk/by-uuid/12bb656b-4f80-4386-aa07-4bf90a3111b4 4.0G
1.6G 2.2G 42% /</DIV>
<DIV>> >
tmpfs
5.0M 4.0K 5.0M 1% /run/lock</DIV>
<DIV>> >
tmpfs
9.9G 0 9.9G 0% /run/shm</DIV>
<DIV>> >
/dev/sda8
428G 112G 313G 27% /home</DIV>
<DIV>> >
/dev/sda6
7.9G 159M 7.8G 2% /tmp</DIV>
<DIV>> >
/dev/sda5
16G 2.7G 14G 17% /var</DIV>
<DIV>> >
cgroup_root
24G 0 24G 0%
/sys/fs/cgroup</DIV>
<DIV>> >
/dev/nbd5
1.4G 851M 466M 65%
/home/openstack/stack/data/nova/instances/eed45ccb-3707-4815-9ae4-c7a2f56adb64/rootfs</DIV>
<DIV>> </DIV>
<DIV>> </DIV>
<DIV>> > hzguanqiang@debian:~$ vir lxc-enter-namespace
instance-00000037 --noseclabel /bin/df -hl</DIV>
<DIV>> >
Filesystem
Size Used Avail Use% Mounted on</DIV>
<DIV>> >
rootfs
4.0G 1.6G 2.2G 42% /</DIV>
<DIV>> >
udev
10M 0 10M 0% /dev</DIV>
<DIV>> >
tmpfs
4.8G 468K 4.8G 1% /run</DIV>
<DIV>> >
/dev/disk/by-uuid/12bb656b-4f80-4386-aa07-4bf90a3111b4 4.0G
1.6G 2.2G 42% /</DIV>
<DIV>> >
tmpfs
5.0M 4.0K 5.0M 1% /run/lock</DIV>
<DIV>> >
tmpfs
9.9G 0 9.9G 0% /run/shm</DIV>
<DIV>> >
/dev/sda8
428G 112G 313G 27% /home</DIV>
<DIV>> >
/dev/sda6
7.9G 159M 7.8G 2% /tmp</DIV>
<DIV>> >
/dev/sda5
16G 2.7G 14G 17% /var</DIV>
<DIV>> >
cgroup_root
24G 0 24G 0%
/sys/fs/cgroup</DIV>
<DIV>> >
/dev/nbd5
1.4G 851M 466M 65%
/home/openstack/stack/data/nova/instances/eed45ccb-3707-4815-9ae4-c7a2f56adb64/rootfs</DIV>
<DIV>> </DIV>
<DIV>> What does 'ls /proc/self/ns' show on the host ?</DIV>
<DIV>> </DIV>
<DIV>> Also what is your guest XML configuration for
'intsance-0000000037' ?</DIV>
<DIV>> </DIV>
<DIV>> Daniel</DIV>
<DIV>> -- </DIV>
<DIV>> |: http://berrange.com
-o- http://www.flickr.com/photos/dberrange/ :|</DIV>
<DIV>> |:
http://libvirt.org
-o-
http://virt-manager.org :|</DIV>
<DIV>> |: http://autobuild.org
-o-
http://search.cpan.org/~danberr/ :|</DIV>
<DIV>> |:
http://entangle-photo.org
-o- http://live.gnome.org/gtk-vnc
:|</DIV>
<DIV>> </DIV>
<DIV>> </DIV>
<DIV>> Hi Daniel,</DIV>
<DIV>> </DIV>
<DIV>> The info you want to see are as following:</DIV>
<DIV>> </DIV>
<DIV>> hzguanqiang@debian:~$ ls /proc/self/ns</DIV>
<DIV>> ipc net uts</DIV>
<DIV> </DIV>
<DIV>That's your problem. The kernel you are running on is too old to
support</DIV>
<DIV>attaching to the mount namespace. You need to see 'mnt' in the
files</DIV>
<DIV>there, and also 'pid' and 'user' too for completeness.</DIV>
<DIV> </DIV>
<DIV>Daniel</DIV>
<DIV>-- </DIV>
<DIV>|: http://berrange.com
-o- http://www.flickr.com/photos/dberrange/ :|</DIV>
<DIV>|:
http://libvirt.org
-o-
http://virt-manager.org :|</DIV>
<DIV>|: http://autobuild.org
-o-
http://search.cpan.org/~danberr/ :|</DIV>
<DIV>|: http://entangle-photo.org
-o- http://live.gnome.org/gtk-vnc
:|</DIV></BLOCKQUOTE></TD></TR></TBODY></TABLE></DIV>
<DIV> </DIV>
<DIV>Ok, Daniel, I got it. Thanks very much.</DIV>
<DIV> </DIV>
<DIV><SPAN>
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<DIV>------------------ <BR>Best
regards!<BR>GuanQiang</DIV></DIV></SPAN></DIV>
<DIV>17:15:46</DIV></BODY></HTML>