【Rico Board】开发环境搭建之内核更新

chenzhufly-1217

linux编译好了以后就要考虑如何更新内核了，手册上没有新的很清楚，我把我的方法记录如下，供大家参考。

1、我们要知道Rico Board内核的存放位置，是在文件系统的boot目录下

1. root@am437x-evm:/# cd boot
   
2. root@am437x-evm:/boot# ls -ln
   
3. lrwxrwxrwx    1 0        0               35 Jan  1  2000 am437x-gp-evm.dtb -> devicetree-zImage-am437x-gp-evm.dtb
   
4. lrwxrwxrwx    1 0        0               36 Jan  1  2000 am43x-epos-evm.dtb -> devicetree-zImage-am43x-epos-evm.dtb
   
5. -rw-r--r--    1 0        0            46472 Jun  9 14:57 devicetree-zImage-am437x-gp-evm.dtb
   
6. -rw-r--r--    1 0        0            48203 Jun  9 14:57 devicetree-zImage-am43x-epos-evm.dtb
   
7. -rw-r--r--    1 0        0        107299702 Jun  9 14:56 vmlinux-3.12.10-ti2013.12.01
   
8. lrwxrwxrwx    1 0        0               27 Jan  1  2000 zImage -> zImage-3.12.10-ti2013.12.01
   
9. -rw-r--r--    1 0        0          4119048 Jun  9 14:56 zImage-3.12.10-ti2013.12.01

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2、编译好zImage文件

1. OBJCOPY arch/arm/boot/Image
   
2.   Kernel: arch/arm/boot/Image is ready
   
3.   AS      arch/arm/boot/compressed/head.o
   
4.   GZIP    arch/arm/boot/compressed/piggy.gzip
   
5.   AS      arch/arm/boot/compressed/piggy.gzip.o
   
6.   CC      arch/arm/boot/compressed/misc.o
   
7.   CC      arch/arm/boot/compressed/decompress.o
   
8.   CC      arch/arm/boot/compressed/string.o
   
9.   SHIPPED arch/arm/boot/compressed/hyp-stub.S
   
10.   AS      arch/arm/boot/compressed/hyp-stub.o
    
11.   SHIPPED arch/arm/boot/compressed/fdt_rw.c
    
12.   SHIPPED arch/arm/boot/compressed/fdt.h
    
13.   SHIPPED arch/arm/boot/compressed/libfdt.h
    
14.   SHIPPED arch/arm/boot/compressed/libfdt_internal.h
    
15.   CC      arch/arm/boot/compressed/fdt_rw.o
    
16.   SHIPPED arch/arm/boot/compressed/fdt_ro.c
    
17.   CC      arch/arm/boot/compressed/fdt_ro.o
    
18.   SHIPPED arch/arm/boot/compressed/fdt_wip.c
    
19.   CC      arch/arm/boot/compressed/fdt_wip.o
    
20.   SHIPPED arch/arm/boot/compressed/fdt.c
    
21.   CC      arch/arm/boot/compressed/fdt.o
    
22.   CC      arch/arm/boot/compressed/atags_to_fdt.o
    
23.   SHIPPED arch/arm/boot/compressed/lib1funcs.S
    
24.   AS      arch/arm/boot/compressed/lib1funcs.o
    
25.   SHIPPED arch/arm/boot/compressed/ashldi3.S
    
26.   AS      arch/arm/boot/compressed/ashldi3.o
    
27.   LD      arch/arm/boot/compressed/vmlinux
    
28.   OBJCOPY arch/arm/boot/zImage
    
29.   Kernel: arch/arm/boot/zImage is ready
    
30.   DTC     arch/arm/boot/dts/omap2420-h4.dtb
    
31.   DTC     arch/arm/boot/dts/omap3430-sdp.dtb
    
32.   DTC     arch/arm/boot/dts/omap3-beagle.dtb
    
33.   DTC     arch/arm/boot/dts/omap3-devkit8000.dtb
    
34.   DTC     arch/arm/boot/dts/omap3-beagle-xm.dtb
    
35.   DTC     arch/arm/boot/dts/omap3-evm.dtb
    
36.   DTC     arch/arm/boot/dts/omap3-tobi.dtb
    
37.   DTC     arch/arm/boot/dts/omap3-igep0020.dtb
    
38.   DTC     arch/arm/boot/dts/omap3-igep0030.dtb
    
39.   DTC     arch/arm/boot/dts/omap4-panda.dtb
    
40.   DTC     arch/arm/boot/dts/omap4-panda-a4.dtb
    
41.   DTC     arch/arm/boot/dts/omap4-panda-es.dtb
    
42.   DTC     arch/arm/boot/dts/omap4-var-som.dtb
    
43.   DTC     arch/arm/boot/dts/omap4-sdp.dtb
    
44.   DTC     arch/arm/boot/dts/omap4-sdp-es23plus.dtb
    
45.   DTC     arch/arm/boot/dts/omap5-uevm.dtb
    
46.   DTC     arch/arm/boot/dts/am335x-evm.dtb
    
47.   DTC     arch/arm/boot/dts/am335x-evmsk.dtb
    
48.   DTC     arch/arm/boot/dts/am335x-bone.dtb
    
49.   DTC     arch/arm/boot/dts/am335x-boneblack.dtb
    
50.   DTC     arch/arm/boot/dts/am335x-evm-profile1.dtb
    
51.   DTC     arch/arm/boot/dts/am335x-evm-profile2.dtb
    
52.   DTC     arch/arm/boot/dts/am3517-evm.dtb
    
53.   DTC     arch/arm/boot/dts/am3517_mt_ventoux.dtb
    
54.   DTC     arch/arm/boot/dts/am43x-epos-evm.dtb
    
55.   DTC     arch/arm/boot/dts/am437x-gp-evm.dtb
    
56.   DTC     arch/arm/boot/dts/dra7-evm.dtb
    
57.   DTC     arch/arm/boot/dts/myir_ricoboard.dtb
    

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3、进入boot目录并删除点zImage文件

1. root@am437x-evm:/boot# rm zImage
   
2. root@am437x-evm:/boot# ls
   
3. am437x-gp-evm.dtb                     devicetree-zImage-am43x-epos-evm.dtb
   
4. am43x-epos-evm.dtb                    vmlinux-3.12.10-ti2013.12.01
   
5. devicetree-zImage-am437x-gp-evm.dtb   zImage-3.12.10-ti2013.12.01

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4、通过scp命令把编译好的zImage传到boot目录

1. leo@chen:~/rico-board/linux-3.12.10-ti2013.12.01$ scp arch/arm/boot/zImage root@192.168.1.25:/boot
   
2. root@192.168.1.25's password:
   
3. zImage                                        100% 4028KB   3.9MB/s   00:01
   

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5、查看一下boot目录下是不是有了zImage文件

1. root@am437x-evm:/boot# ls
   
2. am437x-gp-evm.dtb                     vmlinux-3.12.10-ti2013.12.01
   
3. am43x-epos-evm.dtb                    zImage
   
4. devicetree-zImage-am437x-gp-evm.dtb   zImage-3.12.10-ti2013.12.01
   
5. devicetree-zImage-am43x-epos-evm.dtb

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6、JP1断开，JP2短接，选择从SD卡启动
7、上电重启

1. 
   
2. Booting Linux on physical CPU 0x0
   
3. Linux version 3.12.10 (leo@chen) (gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) ) #1 Fri Oct 23 22:54:45 CST 2015

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可以看出Linux内核更新完成