报错如下：
txj@txj-virtual-machine:~/IMX6ULL/linux-imx-rel_imx_4.1.15_2.1.0_ga_alientek$ make dtbs
scripts/kconfig/conf --silentoldconfig Kconfig
***
*** Configuration file ".config" not found!
***
*** Please run some configurator (e.g. "make oldconfig" or
*** "make menuconfig" or "make xconfig").
***
make[2]: *** [scripts/kconfig/Makefile:38：silentoldconfig] 错误 1
make[1]: *** [Makefile:544：silentoldconfig] 错误 2
make: *** 没有规则可制作目标“include/config/auto.conf”，由“include/config/kernel.release” 需求。 停止。
解决办法：
#
# configuration written to .config
#
重新make dtbs，完美解决！！！
txj@txj-virtual-machine:~/IMX6ULL/linux-imx-rel_imx_4.1.15_2.1.0_ga_alientek$ make dtbs
scripts/kconfig/conf --silentoldconfig Kconfig
CHK include/config/kernel.release
CHK include/generated/uapi/linux/version.h
CHK include/generated/utsrelease.h
HOSTCC scripts/basic/bin2c
make[1]: “include/generated/mach-types.h”已是最新。
CC kernel/bounds.s
CHK include/generated/bounds.h
CC arch/arm/kernel/asm-offsets.s
CHK include/generated/asm-offsets.h
UPD include/generated/asm-offsets.h
CALL scripts/checksyscalls.sh
HOSTCC scripts/dtc/dtc.o
HOSTCC scripts/dtc/flattree.o
HOSTCC scripts/dtc/fstree.o
HOSTCC scripts/dtc/data.o
HOSTCC scripts/dtc/livetree.o
HOSTCC scripts/dtc/treesource.o
HOSTCC scripts/dtc/srcpos.o
HOSTCC scripts/dtc/checks.o
HOSTCC scripts/dtc/util.o
HOSTCC scripts/dtc/dtc-lexer.lex.o
HOSTCC scripts/dtc/dtc-parser.tab.o
HOSTLD scripts/dtc/dtc
HOSTCC scripts/genksyms/genksyms.o
HOSTCC scripts/genksyms/parse.tab.o
HOSTCC scripts/genksyms/lex.lex.o
HOSTLD scripts/genksyms/genksyms
CC scripts/mod/empty.o
HOSTCC scripts/mod/mk_elfconfig
MKELF scripts/mod/elfconfig.h
HOSTCC scripts/mod/modpost.o
CC scripts/mod/devicetable-offsets.s
GEN scripts/mod/devicetable-offsets.h
HOSTCC scripts/mod/file2alias.o
HOSTCC scripts/mod/sumversion.o
HOSTLD scripts/mod/modpost
HOSTCC scripts/kallsyms
HOSTCC scripts/pnmtologo
HOSTCC scripts/conmakehash
HOSTCC scripts/sortextable
DTC arch/arm/boot/dts/imx6ull-alientek-emmc.dtb
DTC arch/arm/boot/dts/imx6ull-alientek-nand.dtb
