Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Install reStream downloading the latest release #53

Merged
merged 3 commits into from
Jan 29, 2021
Merged
Changes from 1 commit
Commits
File filter

Filter by extension

Filter by extension

Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
108 changes: 70 additions & 38 deletions README.md
Original file line number Diff line number Diff line change
Expand Up @@ -9,48 +9,85 @@ reMarkable screen sharing over SSH.

## Installation

### Unix
### Requirements

1. Install `lz4` on your host with your usual package manager. On Ubuntu,
`apt install liblz4-tool` will do the trick.
2. [Set up an SSH key and add it to the ssh-agent](https://help.github.com/en/github/authenticating-to-github/generating-a-new-ssh-key-and-adding-it-to-the-ssh-agent), then add your key to the reMarkable with `ssh-copy-id [email protected]`. **Note:** the reMarkable 2 doesn't support `ed25519` keys, those users should generate and `rsa` key. Try out `ssh [email protected]`, it should **not** prompt for a password.
3. Clone this repository: `git clone https://github.com/rien/reStream`.
4. Copy the `restream` executable to the reMarkable and make it executable.
On your **host** machine

```
# scp restream.arm.static [email protected]:/home/root/restream
# ssh [email protected] 'chmod +x /home/root/restream'
```

--or--
- Any POSIX-shell (e.g. bash)
- ffmpeg (with ffplay)
- ssh
- lz4

Install via [toltec](https://github.com/toltec-dev/toltec) if you use it.
#### Unix

```
# ssh [email protected] 'opkg install restream'
```
1. Install `lz4` on your host with your usual package manager.
On Ubuntu, `apt install liblz4-tool` will do the trick.
2. [Set up an SSH key and add it to the ssh-agent](https://help.github.com/en/github/authenticating-to-github/generating-a-new-ssh-key-and-adding-it-to-the-ssh-agent), then add your key to the reMarkable with `ssh-copy-id [email protected]`.
> **Note:** the reMarkable 2 doesn't support `ed25519` keys, those users should generate and `rsa` key. Try out `ssh [email protected]`, it should **not** prompt for a password.

### Windows
#### Windows

1. Install [git for windows](https://gitforwindows.org/), which includes `Git BASH`.
2. Install [ffmpeg for windows](https://ffmpeg.org/download.html#build-windows).
3. Download [lz4 for windows](https://github.com/lz4/lz4/releases) and extract the `zip` to a folder where you'll remember it (e.g. `C:\Users\{username}\lz4`).
4. Add the `ffmpeg` **and** `lz4` directories to the windows `Path` environment. [Here is a quick guide how.](https://www.architectryan.com/2018/03/17/add-to-the-path-on-windows-10/)
1. Install [ffmpeg for windows](https://ffmpeg.org/download.html#build-windows).
2. Download [lz4 for windows](https://github.com/lz4/lz4/releases) and extract the `zip` to a folder where you'll remember it (e.g. `C:\Users\{username}\lz4`).
3. Add the `ffmpeg` **and** `lz4` directories to the windows `Path` environment. [Here is a quick guide how.](https://www.architectryan.com/2018/03/17/add-to-the-path-on-windows-10/)
- Control Panel > Edit the system environment variables > Environment Variables
- Find the `Path` variable under System variables, click edit.
- Add two _New_ entries: one to the **bin** directory in the `ffmpeg` directory, and one to the `lz4` directory you created.
- Click OK
5. (Re)start `bash` so the new `Path` is used.
6. Generate a new ssh key using `ssh-keygen`.
7. Send the public key to the reMarkable (connect trough USB cable) using `ssh-copy-id -i ~/.ssh/id_rsa [email protected]`
8. Try out `ssh [email protected]`, it should **not** prompt for a password.
9. Go to step **3** of [the Unix installation instructions](#Unix).
4. (Re)start `bash` so the new `Path` is used.
5. Generate a new ssh-key using `ssh-keygen`.
6. Send the public key to the reMarkable (connect trough USB cable) using `ssh-copy-id -i ~/.ssh/id_rsa [email protected]`
7. Try out `ssh [email protected]`, it should **not** prompt for a password.

### reStream installation

We need to download the [latest release](https://github.com/rien/reStream/releases/) files.
f3fora marked this conversation as resolved.
Show resolved Hide resolved
In particular, `reStream.sh` is the executable on the host, and `restream.arm.static` is the binary, which have to be moved on the reMarkable with the name `restream`.
f3fora marked this conversation as resolved.
Show resolved Hide resolved

#### Host

Download [reStream.sh](https://github.com/rien/reStream/releases/download/1.1/reStream.sh) and make it executable
f3fora marked this conversation as resolved.
Show resolved Hide resolved

```
$ chmod +x reStream.sh
```
> **Tip**
> If you save `reStream.sh` in a `PATH` directory as `reStream`, you can launch it as `reStream`.
> On Ubuntu, list these folders with `echo $PATH`. One should be`/usr/local/bin`.
> As root, download the executable there:
```
# wget https://github.com/rien/reStream/releases/download/1.1/reStream.sh -O /usr/local/bin/reStream
f3fora marked this conversation as resolved.
Show resolved Hide resolved
# chmod +x /usr/local/bin/reStream
```

#### reMarkable

You can install `restream` on reMarkable in three ways.

1. Download the [restream](https://github.com/rien/reStream/releases/download/1.1/restream.arm.static) binary onto your host, move it to reMarkable and make it executable.
f3fora marked this conversation as resolved.
Show resolved Hide resolved
f3fora marked this conversation as resolved.
Show resolved Hide resolved

```
$ scp restream.arm.static [email protected]:/home/root/restream
$ ssh [email protected] 'chmod +x /home/root/restream'
```

2. If you have access to internet on your reMarkable, download directly the binary onto it:

```
$ ssh [email protected] 'wget https://github.com/rien/reStream/releases/download/1.1/restream.arm.static -O /home/root/restream && chmod +x /home/root/restream'
f3fora marked this conversation as resolved.
Show resolved Hide resolved
```

3. Install via [toltec](https://github.com/toltec-dev/toltec) if you use it.

```
$ ssh [email protected] 'opkg install restream'
```

## Usage

1. Connect your reMarkable with the USB cable.
2. Make sure you can [open an SSH connection](https://remarkablewiki.com/tech/ssh).
3. Run `./reStream.sh`
3. Run `./reStream.sh` in the script directory or `reStream` if you follow the [Tip](#tip)
f3fora marked this conversation as resolved.
Show resolved Hide resolved
4. A screen will pop-up on your local machine, with a live view of your reMarkable!

### Options
Expand All @@ -67,38 +104,33 @@ reMarkable screen sharing over SSH.

If you have problems, don't hesitate to [open an issue](https://github.com/rien/reStream/issues/new) or [send me an email](mailto:[email protected]).

## Requirements
## Extra Dependencies

On your **host** machine:

- Any POSIX-shell (e.g. bash)
- ffmpeg (with ffplay)
- ssh
- Video4Linux loopback kernel module if you want to use `--webcam`
- Video4Linux Loopback kernel module if you want to use `--webcam`
- netcat if you want to use `--unsecure-connection`

On your **reMarkable** you need the `restream` binary (see [installation instructions](#installation)).

### Video4Linux Loopback

To set your remarkable as a webcam we need to be able to fake one. This is where the Video4Linux Loopback kernel module comes into play. We need both the dkms and util packages. On Ubuntu you need to install:

```
apt install v4l2loopback-utils v4l2loopback-dkms
# apt install v4l2loopback-utils v4l2loopback-dkms
```

In some package managers `v4l2loopback-utils` is found in `v4l-utils`.

After installing the module you must enable it with

```
modprobe v4l2loopback
# modprobe v4l2loopback
```

To verify that this worked, execute:

```
v4l2-ctl --list-devices
$ v4l2-ctl --list-devices
f3fora marked this conversation as resolved.
Show resolved Hide resolved
```

The result should contain a line with "platform:v4l2loopback".
Expand All @@ -110,7 +142,7 @@ If your system does not provide `nc`, the output of `command -v nc` is empty. In
[Several implementations](https://wiki.archlinux.org/index.php/Network_tools#Netcat) of `netcat` exists. On Ubuntu, you can install the version developed by OpenBSD, which is light and supports IPv6:

```
apt install netcat-openbsd
# apt install netcat-openbsd
```

## Troubleshooting
Expand Down