用nfs挂载主机上的rootfs启动出现如下问题，在这之前都正确加载启动内核并且成功挂载主机的rootfs了：
Please press Enter to activate this console. could not open for writing `/root/Settings/locale.conf.new'
could not open for writing `/root/Settings/qpe.conf.new'
could not open for writing `/root/Settings/PluginLoader.conf.new'
could not open for writing `/root/Settings/PluginLoader.conf.new'
could not open for writing `/root/Settings/PluginLoader.conf.new'
could not open for writing `/root/Settings/PluginLoader.conf.new'
could not open for writing `/root/Settings/PluginLoader.conf.new'
could not open for writing `/root/Settings/PluginLoader.conf.new'
could not open for writing `/root/Settings/PluginLoader.conf.new'
could not open for writing `/root/Settings/PluginLoader.conf.new'
could not open for writing `/root/Settings/PluginLoader.conf.new'
could not open for writing `/root/Settings/PluginLoader.conf.new'
could not open for writing `/root/Settings/PluginLoader.conf.new'
could not open for writing `/root/Settings/PluginLoader.conf.new'
could not open for writing `/root/Settings/qpe.conf.new'
could not open for writing `/root/Settings/qpe.conf.new'
could not open for writing `/root/Settings/qpe.conf.new'
could not open for writing `/root/Settings/Sound.conf.new'
虽然这些错误过后可以进入console，但是看到些启动错误用起来还是不爽。不知道是什么原因？我已经把rootfs的这些文件和所在的文件夹chmod a+w了.
