[WE-158] linux-arm not listed

[charlesbones]

linux-arm is not listed https://github.com/arduino/arduino-create-agent/blob/devel/tools/download.go#L53 so self compiled Agent for RPi can not download external tools.

[rsora]

Hi @charlesbones ,
Not to sound pedant :), could you add details about how to reproduce the problem?
This way I'm sure that my fix solves the issue.

Thanks!
Roberto

[charlesbones]

@rsora I followed this intructions https://github.com/arduino/arduino-create-agent#development on a raspberry pi 3 model B and the compilation worked however when I tried to upload the sketch to the board I got the error "Executing command: exec: not started" and on the debug tag I got:

downloadtool avrdude 6.3.0-arduino9 arduino keep
{"DownloadStatus":"Pending","Msg":"We couldn't find a tool with the name avrdude and version 6.3.0-arduino9 packaged by arduino"}
{"DownloadStatus":"Success","Msg":"Map Updated"}
list
{
    "Ports": [],
    "Network": true
}
{
    "Ports": [
        {
            "Name": "/dev/ttyACM0",
            "SerialNumber": "9553833353535160D1D0",
            "DeviceClass": "",
            "IsOpen": false,
            "IsPrimary": false,
            "Baud": 0,
            "BufferAlgorithm": "",
            "Ver": "x.x.x-dev",
            "NetworkPort": false,
            "VendorID": "0x2341",
            "ProductID": "0x0042"
        }
    ],
    "Network": false
}