Jul 20, 2023

Flash kernels and romdisks to the Agenda VR3

The purpose of this utility is to provide an easy way to flash kernels and romdisks to the Agenda VR3.


o Direct serial access w/o minicom o Built-in Xmodem send support o Built-in Etxack send support c/o Brad @ Agenda o Progress meters o Capture file o PMON over-write detection/protection

LICENSE GPL2 or later

If you’re a FreeBSD user, you are likely well acquainted with the power of the ports system. The FreeBSD ports system is an efficient and user-friendly way of getting applications onto your system. Today, we’re focusing on vrflash, a utility that writes disk images to Voyager Rockridge filesystems.

What is vrflash?

vrflash is an integral software part of the FreeBSD ports under the comms category. This utility empowers FreeBSD users to write images to their Rockridge filesystems. These filesystems were specially designed to support Unix systems. As such, they contain various extensions that Unix systems utilize, allowing those systems to have richer metadata.

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Why vrflash?

While there are numerous ways to write disk images to a filesystem, vrflash stands out in various ways. Firstly, vrflash supports the Rockridge filesystem, an integral element for Unix systems. As a result, it helps keep your system intact and functioning as expected.

Additionally, vrflash has a user-friendly interface that makes it easy to use regardless of your tech proficiency level.

Furthermore, writing images to filesystems can be a bit tricky, especially if you lack the proper tools. However, vrflash simplifies the process for you, making writing your desired images to your filesystems super easy.

How to Install vrflash

Still, for such remarkable benefits, you surely want to get started with vrflash. First, ensure you have an active FreeBSD software. Once that checks out, go ahead and install vrflash using the ports system.

An excellent way to install software in FreeBSD is through the ports system. In this case, to install vrflash, you must first navigate to the appropriate directory. You do this through the following command on the terminal.

cd /usr/ports/comms/vrflash/

Once you’re in the right directory, proceed with the installation process with this command

make install clean

This command instructs FreeBSD to build and install vrflash.

How to Use vrflash

Now that you have vrflash installed let’s see how to use it. To write an image to a filesystem, you use the vrflash command. Here’s an example

vrflash -x /path/to/image.img

Replace path/to/image.img with the path to the image file you desire to flash on your filesystem.

But before flashing your filesystems, ensure you have a backup of your data. While vrflash is generally safe, it’s always a good idea to keep a backup. Remember, the command will overwrite everything in your filesystem.


The FreeBSD ports system holds many hidden treasures. vrflash is a fantastic utility that supports the Rockridge filesystem and is naturally a good fit for Unix environments. If you’re an active FreeBSD user working with Unix environment, you should give vrflash a spin.

Also, remember that the FreeBSD universe is vast and extensive. You may need to explore other security-based ports for a more secure FreeBSD environment, like [nmap]https//freebsdsoftware.org/security/nmap.html. Keep learning and exploring to take full advantage of the FreeBSD environment.

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