WARNING: Unable to open an initial console

WARNING: Unable to open an initial console

这个主要是没有建立控制台，解决方式：

内核选择如下选项：

Device Drivers --->

Character devices --->

[*] Virtual terminal

Serial drivers --->

<*> 8250/16550 and compatible serial support

[*] Console on 8250/16550 and compatible serial port

(2) Maximum number of 8250/16550 serial ports

(2) Number of 8250/16550 serial ports to register at runtime

[*] Unix98 PTY support

缺少 /dev/console 和 /dev/null

在建立他们之前UDEV就先使用到他们了

文件系统中建立如下设备文件：

cd /dev

mknod -m 660 console c 5 1

mknod -m 660 null c 1 3

备注：console的权限最好是600，而null的权限最好是666