而gnu os的计划核心是gnu hurd
gnome------>依赖systemd------>linux核心 gnome------>gnu正式桌面------>gun hurd核心
http://en.wikipedia.org/wiki/GNOME#Cont ... _platformsControversy over supported platforms
In May 2011 Lennart Poettering proposed systemd as a dependency for further releases of GNOME. As systemd is available only on Linux, the proposal led to the discussion of possibly dropping support for other platforms in future GNOME releases. While some people responded to the proposal with criticism others suggested the idea of a GNOME Operating System on top of the Linux kernel.
GNOME 3.2 Release Notes state that multiseat support is only available to those using systemd. The systemd dependency was questioned again in November 2012, where the GNOME release team concluded that it can be relied upon for non-critical functionality 
可以是可以装qy117121 写了：依赖systemd 了？