用于SD卡启动android的脚本

介绍SD卡启动android的脚本的大致情况，此它是支持s5pv210的，相关烧写参数发生了改变，这个脚本要把android的system目录data目录和cache目录都挂到root根目录下

 

1. #! /bin/bash
   
2. export LC_ALL=C
4. if [ $# -ne 1 ]; then
5.         echo "Usage: $0 <drive>"
6.         exit 1;
7. fi
9. DRIVE=$1
11. SKIPMEDIA=0
13. OUT_READY=0 
14. ROOT_DIR=$(pwd)
15. PRODUCT='s5pv210'
17. #OFFSET_AUTHKEY=1
18. #OFFSET_BL1=9
19. #OFFSET_BL2=57
20. bl1_position=1
21. uboot_position=49
22. OFFSET_KERNEL=1073
23. OFFSET_ROOTFS=9265
25. SIZE_AUTHKEY=8
26. SIZE_UBOOT=1072
27. SIZE_KERNEL=8192
28. SIZE_ROOTFS=6142 
30. if [ -e "$ROOT_DIR/out/target/product/$PRODUCT" ] ; then
31. OUT_DIR="$ROOT_DIR/out/target/product/$PRODUCT"
32. elif [ -e "$PRODUCT" ] ; then
33. OUT_DIR="$PRODUCT"
34. else
35.     echo "At least one out dir needed."
36.     OUT_DIR=""
37.     exit 1
38. fi
40. function format_drive (){
41. echo "Formatting boot drive"
42. if [ -b ${DRIVE}2 ]; then
43.     umount ${DRIVE}2
44.         mkfs.ext4 -L "sys_uw" ${DRIVE}2
45. else
46.         if [ -b ${DRIVE}p2 ]; then
47.         umount ${DRIVE}p2
48.             mkfs.ext4 -L "sys_uw" ${DRIVE}p2
49.         else
50.                 echo "Can't find boot partition in /dev"
51.         fi
52. fi
53. }
55. function format_vfat () {
56. echo "Formatting vfat data partition"
58. if [ -b ${DRIVE}1 ]; then
59.     umount ${DRIVE}1
60.         mkfs.vfat -F 32 -n "fat_uw" ${DRIVE}1
61. else
62.         if [ -b ${DRIVE}p1 ]; then
63.         umount ${DRIVE}p1
64.             mkfs.vfat -F 32 -n "fat_uw" ${DRIVE}p1
65.         else
66.                 echo "Can't find boot partition in /dev"
67.         fi
68. fi
70. }
73. function write_disk (){
74. echo "Writing android images into disck"
76. if [ -b ${DRIVE} ]; then
77.     ./${OUT_DIR}/mkbl1 ${OUT_DIR}/u-boot.bin SD-bl1-8k.bin 8192
78.     dd iflag=dsync oflag=dsync if=SD-bl1-8k.bin of=${DRIVE} seek=$bl1_position
79.     rm SD-bl1-8k.bin
80. #    dd of=${DRIVE} if=${OUT_DIR}/u-boot.bin seek=$OFFSET_AUTHKEY count=$SIZE_AUTHKEY bs=512
81. #    dd of=${DRIVE} if=${OUT_DIR}/u-boot.bin seek=$OFFSET_BL1 count=$SIZE_UBOOT bs=512
82.     dd iflag=dsync oflag=dsync of=${DRIVE} if=${OUT_DIR}/u-boot.bin seek=$uboot_position bs=512
83.     dd iflag=dsync oflag=dsync of=${DRIVE} if=${OUT_DIR}/zImage seek=$OFFSET_KERNEL count=$SIZE_KERNEL bs=512
84. #    dd iflag=dsync oflag=dsync of=${DRIVE} if=${OUT_DIR}/ramdisk-uboot.img skip=$OFFSET_ROOTFS count=$SIZE_ROOTFS bs=512
85. else
86.     echo "Can't write boot sectors into ${DRIVE}"
87. fi
89. }
92. function cp_root (){
93. mkdir ${OUT_DIR}/tmp
94. if [ -b ${DRIVE}2 ]; then
95.     umount ${DRIVE}2
96.     mount -t ext4 ${DRIVE}2 ${OUT_DIR}/tmp
97. else
98.         if [ -b ${DRIVE}p2 ]; then
99.         umount ${DRIVE}p2
100.             mount -t ext4 ${DRIVE}p2 ${OUT_DIR}/tmp
101.         else
102.                 echo "Can't find root partition in ${DRIVE}"
103.         fi
104. fi
106. if [ "$?" -eq 0 ] ; then
107.     echo "No root partition found, quit."
108. fi
109.     cp -rp ${OUT_DIR}/root/* ${OUT_DIR}/tmp
110.     umount ${OUT_DIR}/tmp
111.     rm -rf ${OUT_DIR}/tmp
112.     echo "Writing root files finished."
113.     return $?
115. }
117. function wite_image (){
118.     echo "Writing kernrl images into disck"
119.     ./${OUT_DIR}/mkbl1 ${OUT_DIR}/u-boot.bin SD-bl1-8k.bin 8192
120.     dd iflag=dsync oflag=dsync if=SD-bl1-8k.bin of=${DRIVE} seek=$bl1_position
121.     rm SD-bl1-8k.bin
122. #    dd of=${DRIVE} if=${OUT_DIR}/u-boot.bin seek=$OFFSET_AUTHKEY count=$SIZE_AUTHKEY bs=512
123. #    dd of=${DRIVE} if=${OUT_DIR}/u-boot.bin seek=$OFFSET_BL1 count=$SIZE_UBOOT bs=512
124.     dd iflag=dsync oflag=dsync of=${DRIVE} if=${OUT_DIR}/u-boot.bin seek=$uboot_position bs=512
125.     dd iflag=dsync oflag=dsync of=${DRIVE} if=${OUT_DIR}/zImage seek=$OFFSET_KERNEL count=$SIZE_KERNEL bs=512
126. }
128. function create_drives(){
129. if [ -b ${DRIVE}1 ]; then
130.         umount ${DRIVE}1
131.     umount ${DRIVE}2
132. else
133.         if [ -b ${DRIVE}p1 ]; then
134.             umount ${DRIVE}p1
135.         umount ${DRIVE}p2
136.         else
137.                 echo "Can't find boot partition in /dev"
138.         fi
139. fi
141. dd if=/dev/zero of=$DRIVE bs=1024 count=1024
143. SIZE=`fdisk -l $DRIVE | grep Disk | grep bytes | awk '{print $5}'`
145. echo DISK SIZE - $SIZE bytes
147. CYLINDERS=`echo $SIZE/255/63/512 | bc`
148. echo CYLINDERS - $CYLINDERS
150. {
151. echo 203,,0x0C,-
152. echo 9,191,0x83,-
153. } | sfdisk -D -H 255 -S 63 -C $CYLINDERS $DRIVE
155. sleep 1
156. }
159. #MAIN fucntion
160. echo "To Writing uboot kernrl images into disck, enter 'k'."
161. echo "To create a new drive, and fill it with android image enter 'c'."
162. echo "To Exit, enter 'r'."
163. echo -n "Enter k , c or r:"
165. read answer
167. case "$answer" in
168. k) format_drive; wite_image; exit;;
169. c) create_drives; format_drive; format_vfat; write_disk; cp_root; exit ;;
170. r) exit;;
171. *) echo "Not a valid option. Exiting"; exit ;;
172. esac
174. eject ${DRIVE}