Known Issues & Differences With Legacy Versions

As discussed in What's New?, AllStarLink v3 is a gigantic leap forward in platform and software ecosystem. Many things are different in modern versions of Linux, Asterisk, and more. This page documents permanent differences with ASL3 relative to legacy versions as well as any known issues that must be fixed in ASL3.

Differences with Legacy Versions

Serial Port(s) Available by Default

On the ASL3 Pi Appliance, the system comes pre-configured for /dev/serial0 (formerly /dev/ttyAMA0) accessibility. That means that Bluetooth and the default serial console are disabled. Any directions requiring editing of config.txt or cmdline.txt are unnecessary with the ASL3 appliance.

Pi /dev Entry Changes

As ASL3 is based on Debian 12, users with Raspberry Pi devices must note that the serial port on the Pi header is now /dev/serial0 rather than the historical /dev/ttyAMA0. If you are following directions for Pi serial port operations, such as programming an SA818/DRA818-based radio hat or a SHARI node, use /dev/serial0 in place of the /dev/ttyAMA0 reference.

Voter/RTCM Default Port

Modern installations of Asterisk runs as the unprivileged asterisk user rather than as root. Standard Linux convention prohibits non-root users to listen on a TCP port below 1024. The default port for Voters/RTCMs has been changed to 1667 when previously it was 667. If voter port changes are difficult for the environment, see Incompatible Changes in ASL3 for other potential workarounds.

Known Issues

The following issues are currently known to exist in AllStarLink 3 and, where possible what the workarounds are.

DTMF Linking + DNS Lookup Timeouts

There are intermittent cases of linking problems in the following situation:

When a linking command (e.g. *3) is sent in DTMF; AND
Certain network configurations or situations do not resolve DNS "fast enough"

This issue is fully described in app_rpt GitHub issue #392. In summary, if the DTMF finaly entry, decoding, and DNS resolution for a link command collectively takes longer than 3 seconds, linking can fail in silent and indeterminate ways.

If this problem is occurring consistently, changing the node lookup method to "file" works around the issue until updated code to resolve this problem can be developed and tested:

If you are not running the ASL3 Pi Appliance, install the asl3-update-nodelist application:
```
sudo apt install -y asl3-update-nodelist
```

For everyone, edit /etc/asterisk/rpt.conf. Somewhere at or around line 10 (depending on file customizations) and change the node_lookup_method to file instead of both. An example looks like:

[general]
node_lookup_method = file       ;method used to lookup nodes
                                ;both = dns lookup first, followed by external file (default)
                                ;dns = dns lookup only
                                ;file = external file lookup only

This file is editable using asl-menu.

Restart Asterisk using asl-menu or systemctl restsart asterisk.

Once the fix is completed and made available, it will be announced on the ASL Community and you should change node_lookup_method to both. Eventually the "file" method will be retired.

resize2fs_once "Error"

There are intermittent cases of errors on the screen or in the system logs about a failure of a service named resize2fs_once.service after the final first boot upon installation. The error may report that it "Failed to start" or "timed out". If the / partition has been properly resized - which has been the case in every known occurrence of the error - then there is no action to take and the issue will not appear on subsequent reboots.

A properly resized / should be a bit smaller than the full size of the SD card or USB drive used with the device. In Cockpit, look at the Storage tab:

In this example, / is a 31G partition on a 32G SD card.

Shutdown/Restart Issues with EZStream/Broadcastify Enabled

With the configuration for Broadcastify enabled, shutting down or restarting Asterisk is not quick or always reliable. When issuing systemctl stop or systemctl restart for the asterisk.service unit it will take upwards of 90 seconds to properly terminate and exit/respawn. Make sure any lame and ezstream processed are killed and not orphaned.

# ps auxww | grep asterisk
asterisk 1443572  0.0  0.0   2416  1024 ?        S    10:13   0:00 /bin/sh -c /usr/bin/lame --preset cbr 16 -r -m m -s 8 --bitwidth 16 - - | /usr/bin/ezstream -qvc /etc/ezstream.xml
asterisk 1443573  0.1  0.1  11920  5120 ?        S    10:13   0:00 /usr/bin/lame --preset cbr 16 -r -m m -s 8 --bitwidth 16 - -
asterisk 1443574  0.0  0.2  55232 10240 ?        S    10:13   0:00 /usr/bin/ezstream -qvc /etc/ezstream.xml

If Asterisk is shutdown, the processes above must be stopped with a kill -9 PID command.