查看分区情况：
$df
Filesystem 1K-blocks Used Available Use% Mounted on
tmpfs 115788 0 115788 0% /dev
tmpfs 115788 0 115788 0% /mnt/asec
/dev/block/mtdblock6 179840 165712 14128 92% /system
/dev/block/mtdblock8 201856 110756 91100 55% /data
/dev/block/mtdblock7 108544 19724 88820 18% /cache
tmpfs 115788 0 115788 0% /dev
tmpfs 115788 0 115788 0% /mnt/asec
tmpfs 115788 0 115788 0% /mnt/obb
/dev/block/mtdblock5 8960 8632 328 96% /cdrom
tmpfs 2048 20 2028 1% /tmp
/dev/block/mtdblock0 1536 1328 208 86% /pds
/dev/block/mtdblock7 108544 19724 88820 18% /data/logger
/dev/block/mtdblock7 108544 19724 88820 18% /cache/recovery
/dev/block/vold/179:1
7745748 4503432 3242316 58% /mnt/sdcard
/dev/block/vold/179:1
7745748 4503432 3242316 58% /mnt/secure/asec
# pm 命令，可以全称是package manager. 其中一下命令比较常用。
The getInstallLocation command gets the current install location
getInstallLocation 命令可以获取当前程序安装位置
0 [auto]: Let system decide the best location
0: 由系统决定
1 [internal]: Install on internal device storage
1: 安装到内部存储器
2 [external]: Install on external media
2: 安装到外部存储器，比如SD卡
The setInstallLocation command changes the default install location
setInstallLocation命令可以设置程序安装位置
0 [auto]: Let system decide the best location
1 [internal]: Install on internal device storage
2 [external]: Install on external media
继续添加中.....