Copy image to microSD card

Linux

The following steps describe how to copy an image to the microSD card. The usually will contain the bootloader, the Linux Kernel and a File System (either Ångström or Ubuntu, others are possible) for the robot Erle:

• Fetch the image.
• Assuming the image name is erlerobot-ubuntu.img.gz, and your microSD is mounted under /dev/sdb (usually is like this in Linux) do the following in the Linux terminal:

zcat erlerobot-ubuntu.img.gz | sudo dd of=/dev/sdb bs=8M

(Note: in Mac OS the 8M should be substituted by 8m)

• In order to make sure that all the content has been copied to the microSD card, introduce in the terminal:

sync

• Eject your microSD card and connect it to Erle. It should be ready to fly ;).

Alternatively if you have an image of the kind erlerobot-ubuntu.tar.xz then you should use the following command:

xz -dkc erlerobot-ubuntu.tar.xz > /dev/sdb

Do it in MacOS

diskutil list
diskutil unmountDisk /dev/disk2

sudo dd if=~/Downloads/erle-debian-11-12-14.img of=/dev/rdisk2 bs=4m conv=sync,notrunc,noerror

Do it in Windows

To burn an image to an SD card in windows you first need the following tools:

• 7-zip or other decompressor that can extract gzipped file (extension gz).
• Image Writer for Windows to write the img file to the SD Card.
• A laptop with SD Card reader, or an external USB SD Card reader.

Here’s the procedure to prepare the SD Card

• Download Ubuntu gzipped image file for OMAP4 boards.
• Extract img file using 7-zip.
• Insert SD Card into reader.
• Execute Win32DiskImager.exe – it requests admin privileges on Windows 7.
• Select the image file.
• Select the device that corresponds to the SD Card reader.
• Write the image file. This will take a while.
• Eject the SD Card.