openwrt-sdk\build_dir\target-mipsel_24kec+dsp_uClibc-0.9.33.2\linux-ramips_mt7620\linux-3.10.14\arch\mips\ralink\cmdline.c
#ifdef CONFIG_SYSFS
char rt2880_cmdline[]="console=ttyS1,115200n8 root=/dev/mtdblock5";
#else
改爲
#ifdef CONFIG_SYSFS
char rt2880_cmdline[]="console=none,115200n8 root=/dev/mtdblock5";
#else