Create a shell script for the android SD Boot Card

Create a shell script for the android SD Boot Card

#! /Bin/bashexport lc_all = CIF [$ #-ne 1]; then Echo "Usage: $0 <drive>" Exit 1; fidrive = $1 skipmedia = 0out_ready = 0 root_dir = $ (PWD) product = 's5pc110 '# offset offset_authkey = 1offset_bl1 = watermark = 57offset_kernel = kernel = 9273 # size size_authkey = 8size_uboot = kernel = 6142 backup_dir = "backup" If [-e "$ root_dir/out/target/product/$ product "]; thenout_dir = "$ root_dir/out/target/product /$ Product "Elif [-e" $ product "]; thenout_dir =" $ product "elseecho" at least one out dir needed. "out_dir =" "Exit 1fi # format the SD card to three partitions. # The first partition is in vfat format. # The second and third partitions are in ext4 format. Function format_drive () {echo "formatting boot drive" If [-B $ {drive} 2]; thenumount $ {drive} 2 umount $ {drive} 3 mkfs. ext4-L "sys" $ {drive} 2 mkfs. ext4-L "data" $ {drive} 3 else if [-B $ {drive} P2]; thenumount $ {drive} p2umount $ {drive} P3 mk FS. ext4-L "sys" $ {drive} P2 mkfs. ext4-L "data" $ {drive} P3 else echo "can't find boot partition in/dev" Fifi} function format_vfat () {echo "formatting vfat Data Partition" If [-B $ {drive} 1]; thenumount $ {drive} 1 mkfs. vfat-F 32-n "fat" $ {drive} 1 else if [-B $ {drive} P1]; thenumount $ {drive} P1 mkfs. vfat-F 32-n "fat" $ {drive} P1 else echo "can't find boot partition in/dev" Fifi} # Check whether the corresponding image file F is prepared Unction check_files () {echo "checking files in $ out_dir." If [! -E "$ out_dir"/u-boot.bin]; thenout_dir = "" Echo "No u-boot.bin, checking if file existed." Exit 1 Elif [! -E "$ out_dir"/zimage]; thenout_dir = "" Echo "No zimage, checking if file existed." Exit 1 Elif [! -E "$ out_dir"/ramdisk-uboot.img]; thenout_dir = "" Echo "No ramdisk-uboot.img, check if file existed." Exit 1 Elif [! -E "$ out_dir"/system/build. prop]; thenout_dir = "" Echo "No system files, check if file existed. "Exit 1fi} # back up the data function backup_disk () {echo" backup disck "If [-e $ {backup_dir}] in SD; thenmv $ {backup_dir} "$ {backup_dir}-'date'" mkdir $ {backup_dir} elsemkdir $ {backup_dir} fiif [-B $ {drive}]; thendd if =$ {drive} of =$ {backup_dir}/secure. bin skip = $ offset_authkey COUNT = $ size_authkey BS = 512dd if =$ {drive} of = $ {Backup_dir}/u-boot.bin skip = $ offset_bl1 COUNT = $ size_uboot BS = 512dd if =$ {drive} of =$ {backup_dir}/zimage skip = $ offset_kernel COUNT = $ size_kernel BS = 512dd if =$ {drive} of =$ {backup_dir}/ramdisk-uboot.img skip = $ offset_rootfs COUNT = $ size_rootfs BS = 512 elseecho "can't find boot partition in/dev" fimkdir $ {backup_dir}/tmpif [-B $ {drive} 2]; thenumount $ {drive} 2 Mount-T ext4 $ {drive} 2 $ {backup_dir}/tmpelse If [-B $ {drive} P2]; thenumount $ {drive} P2 Mount-T ext4 $ {drive} P2 $ {backup_dir}/tmp else echo "can't find system partition in/dev" policiif ["$? "! = 0]; thenecho "warning, no system partition found. "ficp-RP $ {backup_dir}/tmp $ {backup_dir}/systemumount $ {backup_dir}/tmprmdir $ {backup_dir}/tmpecho" backup finished. "Return 0} # Run sdfunction write_disk () {echo" Writing Android images into disck "check_filesif [-B $ {drive}]; thendd of =$ {drive} If =$ {out_dir}/secure. bin seek = $ offset_authkey COUNT = $ size_authkey BS = 512dd of =$ {drive} If =$ {out_dir}/U- Boot. bin seek = $ offset_bl1 COUNT = $ size_uboot BS = 512 # dd OF =$ {drive} If =$ {out_dir}/u-boot.bin seek = $ offset_bl2 BS = 512dd of =$ {drive} If =$ {out_dir}/zimage seek = $ offset_kernel COUNT = $ size_kernel BS = 512dd of =$ {drive} If =$ {out_dir}/ramdisk-uboot.img seek = $ offset_rootfs COUNT = $ size_rootfs BS = 512 elseecho "can't write boot sectors into $ {drive}" fimkdir $ {out_dir}/tmpif [-B $ {drive} 2]; thenumount $ {drive} 2 m Ount-T ext4 $ {drive} 2 $ {out_dir}/tmpelse if [-B $ {drive} P2]; thenumount $ {drive} P2 Mount-T ext4 $ {drive} P2 $ {out_dir}/tmp else echo "can't find system partition in $ {drive}" policiif ["$? "-EQ 0]; thenecho" No system partition found, quit. "ficp-RP $ {out_dir}/system/* $ {out_dir}/tmpumount $ {out_dir}/tmprmdir $ {out_dir}/tmpecho" writing system files finished. "return $ ?} # Create partition function create_drives () {if [-B $ {drive} 1]; then umount $ {drive} 1 umount $ {drive} 2 umount $ {drive} 3 else if [-B $ {drive} P1]; then umount $ {drive} p1umount $ {drive} p2umount $ {drive} P3 else echo "can't find boot partition in/dev" primary IDD if =/dev/Zero of = $ drive BS = 1024 COUNT = 1024 size = 'fdisk-L $ drive | grep disk | grep bytes | awk' {print $5} ''echo disk size-$ size bytescylinders =' echo $ size/255/63/512 | BC 'echo cylinders-$ cylinders {echo 212 ,, 0x0c,-echo 77,135, 0x83,-Echo, 0x83, -} | sfdisk-D-H 255-s 63-C $ cylinders $ drivesleep 1} # Main fucntionecho "to backup a functional disk, enter 'B '. "Echo" to create a new drive, and fill it with Android image enter 'C '. "Echo" to write boot Android image only, enter 'W '. "echo-n" Enter B, C or W: "read answercase" $ answer "INB) backup_disk; exit; c) check_files; create_drives; format_drive; format_vfat; write_disk; exit; W) check_files; format_drive; backup_disk; write_disk; exit; *) echo "not a valid option. exiting "; exit; esaceject $ {drive}