EBC Exercise 08 Mounting a USB drive

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thumb‎ Embedded Linux Class by Mark A. Yoder


Sometime it might be nice to pull some files off a USB drive and on to the Bone. Or to plug a SD card reader into the USB port so you can read files from it.

Shown here is how to read from a ext4 formatted device.

Finding

Before plugging in your drive into the USB port run:

bone$ fdisk -k
Disk /dev/mmcblk0: 59 GiB, 63367544832 bytes, 123764736 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0xdcc0d66a

Device         Boot Start       End   Sectors Size Id Type 
/dev/mmcblk0p1 *     8192 123764735 123756544  59G 83 Linux

Disk /dev/mmcblk1: 1.8 GiB, 1920991232 bytes, 3751936 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x10867701

Device         Boot Start     End Sectors  Size Id Type
/dev/mmcblk1p1 *     8192 3751935 3743744  1.8G 83 Linux

Mounting

Then make a directory where you want them to appear.

host$ mkdir bone.files

The mount them. The 192.168.7.2 is the address of the bone. debian is the login name and the :. says to use debians home directory. (If you've set up the shortcuts you could just use ssh bone:. bone.files.)

host$ sshfs debian@192.168.7.2:. bone.files
host$ ls bone.files

You should see the files in debian's home directory on the bone.

Unmounting

When you are done run:

host$ sudo umount bone.files




thumb‎ Embedded Linux Class by Mark A. Yoder