I really want to install butterknife, but my wifi is not found. My laptop has no wired network, only wifi. I changed the rfkill in /sys/class/rfkill but still i get the message no network. If I check radio it says that hardware is missing. I have a Mediatek MT7921 card. Works with all distros without problems .
How do I get butterknife installed?
For now I have installed Butterbian. Just because I am a big fan of Drew and his works
If you do not have an Ethernet port and your Wi-Fi is completely broken, you will need to download the .deb file on another computer (or your phone) and transfer it via a USB flash drive.
1: First, confirm the exact MediaTek chipset (e.g., MT7921, MT7922) by opening your terminal and running:
lspci -nnk | grep -iA3 net
2: Download the correct Debian Package Search for firmware-misc-nonfree or the specific Firmware-mediatek Download for Linux.
3: Transfer the .deb file to your Debian machine via USB.
4: Open a terminal where the file is located and install it with:
sudo dpkg -i firmware-misc-nonfree_*.deb
5: Reboot your system
Thanks for your answer. This will only work after installing the system. Can i do that without network? Is all i need in the iso. I’m afraid not.
It would require another computer to download the .deb and transfer it from that PC to a USB drive, then copy it to the PC with Butterbian installed on it. So yes the OS would need to be installed prior to doing this.
I might be a little late to the party, but I found the bug. The live ISO was missing firmware-mediatek, which is exactly where your MT7921’s Wi-Fi firmware lives, so the card came up dead. Nothing you did wrong.
Fixed in butterknife 0.2.11, up now at get.butterbian.org. Grab the new ISO and your Wi-Fi should show up.
Thanks for the report, and for running Butterbian in the meantime!
I was just about to say you need the mediatek firmware. 
Had same issue on my new laptop
Thanks Drew, now running Butterknife bspwm. Install went flawless.
Keep up the good work. I love it. Greetz from the Netherlands.