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24 Janvier 2021
After downloading a RaPi image the image must be transferred to a memory card.
The memory card must be a class 10 (fast card) for any of the D-Star hotspot / repeater images.

On an iMac you can use Terminal to perform the transfer.
There are many ways to buy a Raspberry Pi, and depending on who you buy it from, it may or may not come with an operating system already installed on it. How to access system storage on mac. Getting an OS onto a Raspberry Pi is a matter of 'flashing' an SD card with an OS image. To make this as easy as possible, the Raspberry Pi Foundation has introduced a Raspberry Pi Imager application, and you can download it for all major. On your MacOS machine. Download the Ubuntu image for your device in your.Downloads. folder. Insert your microSD card. Open a terminal window (Go to Application » Utilities, you will find the Terminal app there), then run the following command.
How to install gimp on mac. Start with this command to discover all disks (the memory card is treated as a disk):
In this example we assume disk3 is the memory card.
Unmount the memory card:
Now write the image to the card:
The write process will take quite some time and during this time there is no output on the terminal - just be patient and wait. Writing to rdisk3 is much faster than writing to disk3. When the write process is completed the terminal will report a successful write and return to the command prompt.
After write is finished the boot partition on the SD card should mount automatically. It should be ejected before removing the card.
By default the SSH server on the RaPi is disabled. If you intend to start your RaPi without a display you need to go to the boot partition and create an empty file named 'ssh' to enable the SSH server on the Pi:
The dd command is also handy to backup your working image so you have a copy ready when your SD card fails or some other mishap occurs. Here is the command line to create a backup:
Typically you would back up to your desktop with a command line similar to this:
sudo dd bs=1m if=/dev/disk1 of=/Users/your_short_user_name/Desktop/rapi_backup.img
If you are unsure of your Short user name you can look it up with Finder as per image below - your short user name is located to the right of house symbol (circled in red below).
