I bought a new RTL8812BU network card to use with Parrot, then found and installed the driver. But then I discovered that the interface name wasn’t wlan0 — it was a long string of characters. That was unbearable. parrot5 is based on debian10 x64.

After looking it up, all I needed to do was modify the naming rule.

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sudo nano /etc/default/grub

Change GRUB_CMDLINE_LINUX="" to GRUB_CMDLINE_LINUX="net.ifnames=0 biosdevname=0".

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sudo update-grub

Additionally, if you encounter write failed: Network is down during use, you need to change the compatibility in the virtual machine settings under the host controller from USB3.x to USB2.0.