关于安卓pm命令的问题，以及解决方案(遇到了就记下，长时间更新)
这个android.os.DeadObjectException: Transaction failed on small parcel; remote process probably died异常是我在 Lineage OS 14.1 – Android7.1.2里执行pm list packages -3出现的
android.os.DeadObjectException: Transaction failed on small parcel; remote process probably died
at android.os.BinderProxy.transactNative(Native Method)
at android.os.BinderProxy.transact(Binder.java:615)
at android.os.BinderProxy.shellCommand(Binder.java:662)
at com.android.commands.pm.Pm.runShellCommand(Pm.java:295)
at com.android.commands.pm.Pm.runList(Pm.java:666)
at com.android.commands.pm.Pm.run(Pm.java:130)
at com.android.commands.pm.Pm.main(Pm.java:99)
at com.android.internal.os.RuntimeInit.nativeFinishInit(Native Method)
at com.android.internal.os.RuntimeInit.main(RuntimeInit.java:264)
解决办法：
1、电脑进行adb shell操作
2、（需要手机已经root）手机终端切换用户为shell(PS：终端有很多，比如Android Terminal Emulator、termux等)
su - shell或者su - 2000，因为shell用户的uid就是2000
3、系统降级到Android5.x
问题描述：
不管是普通用户还是root用户，只要执行了pm list就会出现这个问题，而在Android5.1里没有发现过这种问题，但有些人在Android8.x也不会出现这种问题，这个我不清楚怎么回事，当我在查看手机里的pm帮助时，发现跟Android5.x的帮助有一些不一样
我手机（ Lineage OS 14.1 -- Android7.1.2）里发现的
NOTE: 'pm list' commands have moved! Run 'adb shell cmd package'
to display the new commands.
pm path: print the path to the .apk of the given PACKAGE.
同位置，Android5.x里发现的
pm list packages: prints all packages, optionally only
those whose package name contains the text in FILTER. Options:
-f: see their associated file.
-d: filter to only show disbled packages.
-e: filter to only show enabled packages.
-s: filter to only show system packages.
-3: filter to only show third party packages.
-i: see the installer for the packages.
-u: also include uninstalled packages.
pm list permission-groups: prints all known permission groups.
pm list permissions: prints all known permissions, optionally only
those in GROUP. Options:
-g: organize by group.
-f: print all information.
-s: short summary.
-d: only list dangerous permissions.
-u: list only the permissions users will see.
pm list instrumentation: use to list all test packages; optionally
supply <TARGET-PACKAGE> to list the test packages for a particular
application. Options:
-f: list the .apk file for the test package.
pm list features: prints all features of the system.
pm list users: prints all users on the system.
pm path: print the path to the .apk of the given PACKAGE.
问题分析：
NOTE: 'pm list' commands have moved! Run 'adb shell cmd package'
to display the new commands.
通过查看这段话以及我通过：切换用户、电脑adb操作、多个安卓版本对比，得出结论
只能通过shell用户操作的才能使用
比如你从普通用户直接提权到root用户，也还是不能用这条命令，但你如果是从shell用户提权到root用户的话，那就可以了
总结：
还是多看看每次更新的通知，不然出了问题都搞不清什么情况
Android的pm命令参数
时间：2019年5月11日