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[libvirt-users] libvirt, OSX and VirtualBox - how?



I have a new OSX Lion Macbook and would like to control VirtualBox using
"virsh" (as I do with KVM under Ubuntu).

I've got this far:

* Installed VirtualBox
* Installed libvirt (brew install libvirt)

But now I'm a bit stuck :-)

I ran VirtualBox itself, and created a test VM successfully.

If I try to use virsh, this is what I get:

Brians-MacBook-Air:~ $ virsh -c vbox:///session
error: internal error unable to initialize VirtualBox driver API
error: failed to connect to the hypervisor
Brians-MacBook-Air:~ $ virsh -c vbox+unix:///session
error: Failed to connect socket to '@/Users/brian/.libvirt/libvirt-sock': No such file or directory
error: failed to connect to the hypervisor

If I try to start libvirtd, this is what I get:

Brians-MacBook-Air:~ $ /usr/local/sbin/libvirtd 
00:00:18.970: -1: info : libvirt version: 0.9.6
00:00:18.970: -1: error : virNetSocketNewListenUNIX:340 : Failed to bind socket to '@/Users/brian/.libvirt/libvirt-sock': No such file or directory

[but directory /Users/brian/.libvirt was created]

However, VirtualBox itself is running OK:

Brians-MacBook-Air:~ $ VBoxManage list vms
"test" {d0d74c25-1dfc-44a4-8a2b-1d25b7972e7c}

Furthermore, dtruss suggests that virsh is finding the installed VirtualBox:

Brians-MacBook-Air:~ $ sudo dtruss -f virsh -c vbox:///session 2>&1 | grep -i virtualbox
error: internal error unable to initialize VirtualBox driver API
48916/0x3cc08:  write_nocancel(0x2, "internal error unable to initialize VirtualBox driver API\n\0", 0x3A)		 = 58 0
48916/0x3cc08:  access("/usr/lib/virtualbox/VBoxXPCOMC.dylib\0", 0x0, 0x0)	 = -1 Err#2
48916/0x3cc08:  access("/usr/lib/virtualbox-ose/VBoxXPCOMC.dylib\0", 0x0, 0x0)	 = -1 Err#2
48916/0x3cc08:  access("/usr/lib64/virtualbox/VBoxXPCOMC.dylib\0", 0x0, 0x0)	 = -1 Err#2
48916/0x3cc08:  access("/usr/lib64/virtualbox-ose/VBoxXPCOMC.dylib\0", 0x0, 0x0) = -1 Err#2
48916/0x3cc08:  access("/usr/lib/VirtualBox/VBoxXPCOMC.dylib\0", 0x0, 0x0)	 = -1 Err#2
48916/0x3cc08:  access("/opt/virtualbox/VBoxXPCOMC.dylib\0", 0x0, 0x0)		 = -1 Err#2
48916/0x3cc08:  access("/opt/VirtualBox/VBoxXPCOMC.dylib\0", 0x0, 0x0)		 = -1 Err#2
48916/0x3cc08:  access("/opt/virtualbox/i386/VBoxXPCOMC.dylib\0", 0x0, 0x0)	 = -1 Err#2
48916/0x3cc08:  access("/opt/VirtualBox/i386/VBoxXPCOMC.dylib\0", 0x0, 0x0)	 = -1 Err#2
48916/0x3cc08:  access("/opt/virtualbox/amd64/VBoxXPCOMC.dylib\0", 0x0, 0x0)	 = -1 Err#2
48916/0x3cc08:  access("/opt/VirtualBox/amd64/VBoxXPCOMC.dylib\0", 0x0, 0x0)	 = -1 Err#2
48916/0x3cc08:  access("/usr/local/lib/virtualbox/VBoxXPCOMC.dylib\0", 0x0, 0x0) = -1 Err#2
48916/0x3cc08:  access("/usr/local/lib/VirtualBox/VBoxXPCOMC.dylib\0", 0x0, 0x0) = -1 Err#2
48916/0x3cc08:  access("/Applications/VirtualBox.app/Contents/MacOS/VBoxXPCOMC.dylib\0", 0x0, 0x0)		 = 0 0
48916/0x3cc08:  stat64("/Applications/VirtualBox.app/Contents/MacOS/VBoxXPCOMC.dylib\0", 0x7FFF685D0980, 0x7FFF685D1810)		 = 0 0
48916/0x3cc08:  open("/Applications/VirtualBox.app/Contents/MacOS/VBoxXPCOMC.dylib\0", 0x0, 0x0)		 = 4 0
48916/0x3cc08:  stat64("/Applications/VirtualBox.app/Contents/MacOS/VBoxRT.dylib\0", 0x7FFF685D0750, 0x7FFF685D15D0)		 = 0 0
48916/0x3cc08:  open("/Applications/VirtualBox.app/Contents/MacOS/VBoxRT.dylib\0", 0x0, 0x0)		 = 4 0
48916/0x3cc08:  stat64("/Applications/VirtualBox.app/Contents/MacOS/VBoxXPCOM.dylib\0", 0x7FFF685D0750, 0x7FFF685D15D0)		 = 0 0
48916/0x3cc08:  open("/Applications/VirtualBox.app/Contents/MacOS/VBoxXPCOM.dylib\0", 0x0, 0x0)		 = 4 0

But looking at the dtruss output shortly before it prints the error message
doesn't give me any clues as to what's going wrong.

...
48916/0x3cc08:  stat64("/usr/lib/libbsm.0.dylib\0", 0x7FFF685D0090, 0x7FFF685D0F10)              = 0 0
48916/0x3cc08:  stat64("/System/Library/PrivateFrameworks/Heimdal.framework/Versions/A/Heimdal\0", 0x7FFF685D0290, 0x7FFF685D1110)               = 0 0
48916/0x3cc08:  stat64("/usr/lib/libncurses.5.4.dylib\0", 0x7FFF685D05A0, 0x7FFF685D1420)                = 0 0
48916/0x3cc08:  getpid(0x7FFF685D1628, 0x108A16004, 0xEA60)              = 48916 0
48916/0x3cc08:  open("/dev/dtracehelper\0", 0x2, 0xFFFFFFFFFFFFFFB0)             = 4 0
48916/0x3cc08:  ioctl(0x4, 0x80086804, 0x7FFF685D1708)           = 0 0
48916/0x3cc08:  close(0x4)               = 0 0
48916/0x3cc08:  gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58)                 = -1 Err#3
48916/0x3cc08:  gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58)                 = -1 Err#3
48916/0x3cc08:  gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58)                 = -1 Err#3
48916/0x3cc08:  gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58)                 = -1 Err#3
48916/0x3cc08:  gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58)                 = -1 Err#3
48916/0x3cc08:  gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58)                 = -1 Err#3
48916/0x3cc08:  gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58)                 = -1 Err#3
48916/0x3cc08:  gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58)                 = -1 Err#3
48916/0x3cc08:  gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58)                 = -1 Err#3
48916/0x3cc08:  gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58)                 = -1 Err#3
48916/0x3cc08:  gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58)                 = -1 Err#3
48916/0x3cc08:  gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58)                 = -1 Err#3
48916/0x3cc08:  gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58)                 = -1 Err#3
48916/0x3cc08:  gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58)                 = -1 Err#3
48916/0x3cc08:  gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58)                 = -1 Err#3
48916/0x3cc08:  gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58)                 = -1 Err#3
48916/0x3cc08:  gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58)                 = -1 Err#3
48916/0x3cc08:  gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58)                 = -1 Err#3
48916/0x3cc08:  gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58)                 = -1 Err#3
48916/0x3cc08:  gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58)                 = -1 Err#3
48916/0x3cc08:  gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58)                 = -1 Err#3
48916/0x3cc08:  gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58)                 = -1 Err#3
48916/0x3cc08:  gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58)                 = -1 Err#3
48916/0x3cc08:  sigaction(0xD, 0x7FFF685D1978, 0x0)              = 0 0
48916/0x3cc08:  gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58)                 = -1 Err#3
48916/0x3cc08:  pipe(0x108BF1D90, 0x1000004, 0x7)                = 4 0
48916/0x3cc08:  fcntl(0x5, 0x3, 0x0)             = 1 0
48916/0x3cc08:  fcntl(0x5, 0x4, 0x5)             = 0 0
48916/0x3cc08:  fcntl(0x4, 0x3, 0x0)             = 0 0
48916/0x3cc08:  fcntl(0x4, 0x4, 0x4)             = 0 0
48916/0x3cc08:  fcntl(0x5, 0x1, 0x0)             = 0 0
48916/0x3cc08:  fcntl(0x5, 0x2, 0x1)             = 0 0
48916/0x3cc08:  fcntl(0x4, 0x1, 0x0)             = 0 0
48916/0x3cc08:  fcntl(0x4, 0x2, 0x1)             = 0 0
48916/0x3cc08:  gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58)                 = -1 Err#3
48916/0x3cc08:  gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58)                 = -1 Err#3
48916/0x3cc08:  gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58)                 = -1 Err#3
48916/0x3cc08:  gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58)                 = -1 Err#3
48916/0x3cc08:  gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58)                 = -1 Err#3
48916/0x3cc08:  gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58)                 = -1 Err#3
48916/0x3cc08:  gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58)                 = -1 Err#3
48916/0x3cc08:  gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58)                 = -1 Err#3
48916/0x3cc08:  gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58)                 = -1 Err#3
48916/0x3cc08:  gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58)                 = -1 Err#3
48916/0x3cc08:  gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58)                 = -1 Err#3
48916/0x3cc08:  getuid(0x7F9ABBC2B850, 0x108BED7A0, 0x0)                 = 0 0
48916/0x3cc08:  gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58)                 = -1 Err#3
48916/0x3cc08:  gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58)                 = -1 Err#3
48916/0x3cc08:  gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58)                 = -1 Err#3
48916/0x3cc08:  gettid(0x0, 0x7FFF74AC9F00, 0x108A32B58)                 = -1 Err#3
48916/0x3cc08:  write_nocancel(0x2, "error: \0", 0x7)            = 7 0
48916/0x3cc08:  write_nocancel(0x2, "internal error unable to initialize VirtualBox driver API\n\0", 0x3A)               = 58 0
48916/0x3cc08:  write_nocancel(0x2, "error: \0", 0x7)            = 7 0
48916/0x3cc08:  write_nocancel(0x2, "failed to connect to the hypervisor\n\0", 0x24)             = 36 0
48916/0x3cc08:  close(0x3)               = 0 0
48916/0x3cc08:  __sysctl(0x7FFF685D0F4C, 0x2, 0x7FFF685D0F38)            = 0 0
48916/0x3cc08:  bsdthread_register(0x7FFF8DCDCB68, 0x7FFF8DCDCB78, 0x2000)               = 0 0
48916/0x3cc08:  thread_selfid(0x7FFF8DCDCB68, 0x7FFF8DCDCB78, 0x0)               = 248840 0
...

Has anybody got libvirt + OSX Lion + VirtualBox working, and if so, how did
you do it?

I see the same question asked here:
http://stackoverflow.com/questions/7946994/libvirt-and-virtualbox-on-osx
but unfortunately no response as yet.

Thanks in advance,

Brian.


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