VirtualBox5.1安装问题

在安装VirtualBox5.1的时候，发现和5.0版本安装不兼容，需要先卸载5.0版本。

在rhel6.2系统上安装完成之后，启动VirtualBox会出现如下错误：

[cnangel@localhost ~]$VirtualBox
xkbcommon: ERROR: failed to add default include path /usr/share/X11/xkb
Qt WARNING: Qt: Failed to create XKB context!
Qt WARNING: Use QT_XKB_CONFIG_ROOT environmental variable to provide an additional search path, add ':' as separator to provide several search paths and/or make sure that XKB configuration data directory contains recent enough contents, to update please see http://cgit.freedesktop.org/xkeyboard-config/ .
process 32666: D-Bus library appears to be incorrectly set up; failed to read machine uuid: Failed to open "/var/lib/dbus/machine-id": No such file or directory
See the manual page for dbus-uuidgen to correct this issue.
D-Bus not built with -rdynamic so unable to print a backtrace
Aborted

应该是打包关系，相关xkb的库文件没有依赖打入，故需要手工安装：

[cnangel@localhost ~]$ sudo yum install xorg-x11-server-common xkeyboard-config -y

然后继续运行VirtualBox命令，发现仍然出现错误：

[cnangel@localhost ~]$VirtualBox
process 9701: D-Bus library appears to be incorrectly set up; failed to read machine uuid: Failed to open "/var/lib/dbus/machine-id": No such file or directory
See the manual page for dbus-uuidgen to correct this issue.
D-Bus not built with -rdynamic so unable to print a backtrace
Aborted

应该是spec文件打包之后，运行之前需要提前做一些准备工作，%postrun段需要生成machine-id，现在则手工生成：