[vbox-dev] Unable to start VBox

[John Frankish]

After compiling VirtualBox-5.1.22 for linux, I am unable to start it.

I'd be grateful for any suggestions on how to fix this.

----------

As per google the user should be a member of the vboxusers group - I have checked that this is so.

As per google various libs in /usr/local/lib/virtualbox should be symlinked to /usr/local/lib/virtualbox/components - they appear to be hardlinked as part of "sudo make install".

As per google the /tmp folder should have the correct permissions - this appears to be so:

$ ls -l /tmp/.vbox-tc-ipc
total 4
srwx------    1 tc       staff            0 May  6 15:23 ipcd
-rw-------    1 tc       staff            6 May  6 15:23 lock
$ ls -l /
...
drwxrwxrwt    8 root     staff          360 May  6 15:23 tmp/

The various qt-5.x plugins appear to load correctly, before I get a VBox error pop-up:

$ QT_DEBUG_PLUGINS=1 VirtualBox %U
...
Qt WARNING: Found metadata in lib /usr/local/lib/qt5/plugins/imageformats/libqwebp.so, metadata=
{
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
        "Keys": [
            "webp"
        ],
        "MimeTypes": [
            "image/webp"
        ]
    },
    "className": "QWebpPlugin",
    "debug": false,
    "version": 329216
}

[error pop-up appears, click on OK, then..]
Qt WARNING: QLibraryPrivate::unload succeeded on "/usr/local/lib/qt5/plugins/imageformats/libqdds.so" 
Qt WARNING: QLibraryPrivate::unload succeeded on "/usr/local/lib/qt5/plugins/imageformats/libqgif.so" 
Qt WARNING: QLibraryPrivate::unload succeeded on "/usr/local/lib/qt5/plugins/imageformats/libqicns.so" 
Qt WARNING: QLibraryPrivate::unload succeeded on "/usr/local/lib/qt5/plugins/imageformats/libqico.so" 
Qt WARNING: QLibraryPrivate::unload succeeded on "/usr/local/lib/qt5/plugins/imageformats/libqjpeg.so" 
Qt WARNING: QLibraryPrivate::unload succeeded on "/usr/local/lib/qt5/plugins/imageformats/libqmng.so" 
Qt WARNING: QLibraryPrivate::unload succeeded on "/usr/local/lib/qt5/plugins/imageformats/libqsvg.so" 
Qt WARNING: QLibraryPrivate::unload succeeded on "/usr/local/lib/qt5/plugins/imageformats/libqtga.so" 
Qt WARNING: QLibraryPrivate::unload succeeded on "/usr/local/lib/qt5/plugins/imageformats/libqtiff.so" 
Qt WARNING: QLibraryPrivate::unload succeeded on "/usr/local/lib/qt5/plugins/imageformats/libqwbmp.so" 
Qt WARNING: QLibraryPrivate::unload succeeded on "/usr/local/lib/qt5/plugins/imageformats/libqwebp.so" 
Qt WARNING: QLibraryPrivate::unload succeeded on "/usr/local/lib/qt5/plugins/platforminputcontexts/libcomposeplatforminputcontextplugin.so" 
Qt WARNING: QLibraryPrivate::unload succeeded on "/usr/local/lib/qt5/plugins/xcbglintegrations/libqxcb-glx-integration.so" 
Qt WARNING: QLibraryPrivate::unload succeeded on "/usr/local/lib/qt5/plugins/platforms/libqxcb.so" 
Qt WARNING: QLibraryPrivate::unload succeeded on "Xcursor" (faked)

Failed to create the VirtualBoxClient COM object.
The application will now terminate.
Callee RC: NS_ERROR_FACTORY_NOT_REGISTERED (0x80040154)

I also tried with strace and got the following:

$ ls -l /usr/local/lib/virtualbox/VirtualBox
-rwsr-xr-x    1 root     root        136760 May  3 16:42 /usr/local/lib/virtualbox/VirtualBox

$ strace VirtualBox %U
...
getrlimit(RLIMIT_STACK, {rlim_cur=8192*1024, rlim_max=RLIM_INFINITY}) = 0
uname({sys="Linux", node="box", ...})   = 0
readlink("/proc/self/exe", "/usr/local/lib/virtualbox/VirtualBox", 4099) = 36
getuid32()                              = 1001
getuid32()                              = 1001
getgid32()                              = 50
geteuid32()                             = 1001
getegid32()                             = 50
geteuid32()                             = 1001
write(2, "VirtualBox", 10VirtualBox)              = 10
write(2, ": ", 2: )                       = 2
write(2, "Error ", 6Error )                   = 6
write(2, "-", 1-)                        = 1
write(2, "10", 210)                       = 2
write(2, " in ", 4 in )                     = 4
write(2, "SUPR3HardenedMain", 17SUPR3HardenedMain)       = 17
write(2, "!\n", 2!
)                      = 2
write(2, "VirtualBox", 10VirtualBox)              = 10
write(2, ": ", 2: )                       = 2
write(2, "Effective UID is not root (euid=", 32Effective UID is not root (euid=) = 32
write(2, "1001", 41001)                     = 4
write(2, " egid=", 6 egid=)                   = 6
write(2, "50", 250)                       = 2
write(2, " uid=", 5 uid=)                    = 5
write(2, "1001", 41001)                     = 4
write(2, " gid=", 5 gid=)                    = 5
write(2, "50", 250)                       = 2
write(2, ")", 1))                        = 1
write(2, "\n", 1
)                       = 1
write(2, "\n", 1
)                       = 1
write(2, "VirtualBox", 10VirtualBox)              = 10
write(2, ": ", 2: )                       = 2
write(2, "Tip! It may help to reinstall Vi"..., 42Tip! It may help to reinstall VirtualBox.
) = 42
setresgid32(50, 50, 50)                 = 0
setresuid32(1001, 1001, 1001)           = 0
getresuid32([1001], [1001], [1001])     = 0
getresgid32([50], [50], [50])           = 0
capset(0, 0, {CAP_NET_RAW, CAP_NET_RAW, 0}) = -1 EINVAL (Invalid argument)

..and also at some point:

$ VirtualBox %U
libGL error: unable to load driver: i965_dri.so
libGL error: driver pointer missing
libGL error: failed to load driver: i965
libGL error: unable to load driver: i965_dri.so
libGL error: driver pointer missing
libGL error: failed to load driver: i965
libGL error: unable to load driver: swrast_dri.so
libGL error: failed to load driver: swrast

..but:

$ grep i965 /var/log/Xorg.0.log
[  2513.879] (II) modeset(0): [DRI2]   DRI driver: i965
[  2513.879] (II) modeset(0): [DRI2]   VDPAU driver: i965
[  2513.883] (II) AIGLX: Loaded and initialized i965

$ ls /usr/local/lib/dri/*swrast*
/usr/local/lib/dri/kms_swrast_dri.so  /usr/local/lib/dri/swrast_dri.so