Android 使用 BusyBox 挂载 ext2 SD 卡
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Mount ext2 sd card with BusyBox
提问by Justin
I am trying to mount an sd card that I put into my tablet. The sd card is in ext2 format. I tried using BusyBox with the following command in my terminal app on the tablet:
我正在尝试安装我放入平板电脑的 SD 卡。SD卡为ext2格式。我尝试在平板电脑上的终端应用程序中使用 BusyBox 和以下命令：
busybox mkfs.ext2
But it seems I need to add some arguments to the command. What commands would I need to add to it? Or is there an easier way to mount the sd card?
但似乎我需要在命令中添加一些参数。我需要添加哪些命令？或者有没有更简单的方法来安装 SD 卡？
I would like to not format the sd card as there is data on it; but whatever it takes to read it as ext2 format is ok.
我不想格式化sd卡，因为上面有数据；但无论如何将其读取为 ext2 格式都可以。
采纳答案by zapl
Should be busybox mount /dev/block/something /mountpoint. mkfscreates a filesystem like formatin Windows
应该是busybox mount /dev/block/something /mountpoint。mkfs创建一个类似于formatWindows的文件系统
http://www.busybox.net/downloads/BusyBox.html#mount
http://www.busybox.net/downloads/BusyBox.html#mount
Or is there an easier way to mount the sd card?
或者有没有更简单的方法来安装 SD 卡？
It usually happens automatically, check busybox mountwithout arguments if it is already mounted somewhere.
它通常会自动发生，busybox mount不带参数检查它是否已经安装在某处。
回答by Akos Cz
you need to mountthe ext2 filesystem not create the filesystem.
您需要挂载ext2 文件系统而不是创建文件系统。
Depending on your tablet, the device in /dev could be different from my example. but in general you want to run a similar command :
根据您的平板电脑，/dev 中的设备可能与我的示例不同。但一般来说你想运行一个类似的命令：
busybox mount -t ext2 /dev/block/vold/179:2 /data/sd-ext
where /dev/block/vold/179:2is the device that you are trying to mount.
其中/dev/block/vold/179:2是您尝试挂载的设备。
and /data/sd-extis the path where you want to mount your sd card to.
和/数据/ SD-EXT是要你的SD卡安装到的路径。
here's the help page for the mount command
这是 mount 命令的帮助页面
1|shell@android:/ $ busybox mount -t
option requires an argument -- t
BusyBox v1.20.0.git (2012-03-21 01:44:00 GMT) multi-call binary.
Usage: mount [OPTIONS] [-o OPTS] DEVICE NODE
Mount a filesystem. Filesystem autodetection requires /proc.
-a Mount all filesystems in fstab
-f Dry run
-i Don't run mount helper
-r Read-only mount
-w Read-write mount (default)
-t FSTYPE[,...] Filesystem type(s)
-O OPT Mount only filesystems with option OPT (-a only)
-o OPT:
loop Ignored (loop devices are autodetected)
[a]sync Writes are [a]synchronous
[no]atime Disable/enable updates to inode access times
[no]diratime Disable/enable atime updates to directories
[no]relatime Disable/enable atime updates relative to modification time
[no]dev (Dis)allow use of special device files
[no]exec (Dis)allow use of executable files
[no]suid (Dis)allow set-user-id-root programs
[r]shared Convert [recursively] to a shared subtree
[r]slave Convert [recursively] to a slave subtree
[r]private Convert [recursively] to a private subtree
[un]bindable Make mount point [un]able to be bind mounted
[r]bind Bind a file or directory [recursively] to another location
move Relocate an existing mount point
remount Remount a mounted filesystem, changing flags
ro/rw Same as -r/-w
There are filesystem-specific -o flags.
