Hi ALL QEMU run well with a pre-build kernel image from yocto site. Now just change the kernel to one built myself, some error information appeared about nfs. My kernel image version is 2.6.35 configured by versatile_defconfig. Error information as following: [cid:image001.png@01CC6E2C.F8552DD0] “root-nfs: unknown option: mountprog=21111”,this message search nothing on google. Is there something wrong with .config? Add normally is there some special configuration I should do with kernel to fit QEMU? Best regards Feye 蔡振军 网新技术有限公司物联网事业部 杭州天目山路226号网新大厦 电话-138 6745 1910