问题出现，因为最佳额定备份应用程序（Titanium Backup）需要root。那么在获得真正完全备份时，可以使用什么是必不可少的？是否有一个文件管理器类型应用程序，可以在某处打电话（在SD卡，在线或无线）上复制整个文件系统（在线或无线 - 无关紧要？）
The question arises because the best-rated backup application (Titanium Backup) requires root. So what would one use instead when getting a really complete backup is essential? Is there a file manager-type application available that enables copying the whole file system on the phone somewhere (to SD-card, online or wirelessly - doesn't matter which?)
(Samsung Galaxy S9000)
As far as I know, you can only make a full/complete backup of the phone with root. Because you need root in order to run Titanium Backup (which only backs up apps and their data) or you need root in order to flash ClockWork Recovery which lets you perform a Nandroid backup (full image backup of the entire device).
You need root for a full backup because the system partition (among other areas) cannot be accessed with user permissions.
adb shell will allow you to browse
/system/ though not
/system/app/ and other areas.
adb pull will let you pull
/system/app/ though other files will fail with permissions errors.
Backing that up is essentially useless without root, however, because you can't restore the files!
/system/ is read-only and cannot be remounted as RW without root.
If you're running 4.0 or above you can use
adb backup. Follow the instructions here.
After you're rooted, Titanium Backup Pro can restore the data that you need from that file.