Raspberry Pi Usb Sd Card Reader Read Only

A USB card reader can be convenient if you need to read or write on a different SD bill of fare than the i running your system. For instance, if y'all demand to create a backup of your Raspberry Pi or transfer photos from a camera. But as many things on Linux, it's non especially piece of cake to use information technology. In this article, I'll show yous how to do it.

On most operating systems, a USB SD card reader will be detected every bit a USB key. On Raspberry Pi Os with Desktop, information technology will be mounted automatically and accessible via the file explorer (left bill of fare). With a minimal version, the mount control can be used to access the files manually.

In this article, we'll learn how to use a USB card reader, whatever your operating system is. And I'll requite you a few ideas of things you can practice with that kind of adapter.

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How do I use a USB card reader?

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A USB carte du jour reader is a small device, like a USB key, with a Micro-SD carte du jour slot on information technology. The storage is on the SD card, the USB part is just an adapter. And so, it can be used the same style as a USB drive (plug & play).

The basics

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Just to be clear, I'thousand talking near a device like this one, which looks like a standard USB fundamental. But on Raspberry Pi, I would recommend an SD card reader with a USB cablevision (like this other ane) considering we don't want to cake admission to the other USB ports while using this adapter.

So, start by inserting your Micro-SD carte in the USB card reader, and plug it on a free USB port on a powered Raspberry Pi. And then, follow one of the next sections depending on the operating organization you lot are using.

Use a carte du jour reader on Raspberry Pi Bone with Desktop

Nosotros'll offset with the easiest part. If you lot take an operating organisation with a desktop GUI, like Raspberry Pi OS, using your SD carte du jour reader won't be very complicated.

On Raspberry Pi OS with Desktop, the system will mount your SD card reader automatically. Once plugged in, open your file explorer, you'll see something like this:

As y'all tin see, the organisation detected the SD carte du jour reader and automatically mounted the partitions. You tin can access your files from in that location. It should be accessible with read-write permissions (if non, there is probably an upshot with your SD card or a security lock on your adapter).

If your SD bill of fare is not formatted, you can apply a tool named "Gparted" easily format it from your Raspberry Pi. I explain all the steps in this commodity if yous need some assist. You tin can likewise prepare the SD bill of fare on your reckoner if you fix, any operating organization includes tools to practice this.

Before unplugging your USB card reader, use the eject symbol in the file explorer to unmount it properly. This will foreclose whatsoever file corruption if an operating was still in progress.

Use a card reader on any Linux distribution

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If you are connected via SSH, or use a minimal distribution, information technology might be a more complicated process. Simply no worries, I'll testify yous how to do it step-by-pace in this department.

In fact, the procedure volition be the same equally with any USB drive. Your system volition find a new drive connected, and you take to mount it yourself before using information technology.
The first step will exist to identify the bulldoze name:

• Utilize fdisk to display all the detected devices on your Raspberry Pi:
  sudo fdisk -50
• In general, the USB card reader will be the concluding one. Y'all should become something like this:
  
• So, my USB card reader is /dev/sda and in that location are two partitions on it: sda1 and sda2.
  I tin can also check the file system used on each partition.

We have everything we need to mountain the partition:

• If you don't have one still, starting time by creating a temporary file folder to mountain the partition. For example:
  sudo mkdir /media/sdcard
• Then mount the SD card on this binder, in my case:
  sudo mount /dev/sda2 /media/sdcard
  Supersede the first parameter with the partition proper name you institute in the previous stride.

You can now read and write on your SD bill of fare:
ls /media/sdcard
sudo impact /media/sdcard/test

This is the basic mode to do this, there are more options available, depending on the file organisation, user permissions, etc. You can find more than details in this article if you need.

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What tin you lot do with a USB SD-carte reader?

You now have admission to your files via your SD-card reader, great. But what's the next step? What can y'all do with information technology?

Transfer files

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I think the almost common goal to employ a USB carte reader is to transfer files.
As I told yous in the introduction, most cameras use SD cards. So, if you need the files on your Raspberry Pi, a USB carte du jour reader will be perfect.

You lot can likewise utilize the aforementioned adapter to transfer files from one Raspberry Pi to another, or even to your computer.
Basically, you lot tin can apply it like a USB key.

Create a backup of your Raspberry Pi

Another thing that can be really useful, is to create backups of your Raspberry Pi with this USB card reader.
You can utilize it like a USB key and copy the critical files on it, but there is too a peachy tool on Raspberry Pi Os : SD carte du jour copier.
It allows you to duplicate the current SD card (running your operating system) to another one (plugged into your USB carte reader).

I have an entire commodity about the best strategies to create backups of your Raspberry Pi, and it's i of the near powerful ways to create a backup. If anything happens to your system (even losing the SD card), y'all tin apply the re-create and start with the same setup every bit the twenty-four hour period you created the copy.

Extra storage

Using an USB card reader is also a good fashion to add extra storage to your Raspberry Pi installation. In general, information technology's also a expert practice to keep your files on a different partition (or drive) as the main organization. This way, if annihilation corrupts the organisation, your data should be safe.

So, you can take Raspberry Pi Bone running on the chief SD card, and your documents on the SD bill of fare reader. If you are doing this, I would recommend using this kind of disk instead, every bit it's manner faster and more reliable. But as a upkeep solution, a USB card reader is not so bad.

Raspberry Pi Usb Sd Card Reader Read Only

Source: https://raspberrytips.com/usb-card-reader-raspberry-pi/

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