Thank you, @tehn. I know you juggle a lot. I appreciate the attention and care you put toward the community.
So, about the stuff. I ran those two lines in Terminal. The first was successful, and the second returned this:
→ sudo rm -rf /Library/StagedExtensions/System/Library/Extensions/FTDIUSBSerialDriver.kext
rm: /Library/StagedExtensions/System/Library/Extensions/FTDIUSBSerialDriver.kext/Contents/MacOS/FTDIUSBSerialDriver: Operation not permitted
rm: /Library/StagedExtensions/System/Library/Extensions/FTDIUSBSerialDriver.kext/Contents/MacOS: Operation not permitted
rm: /Library/StagedExtensions/System/Library/Extensions/FTDIUSBSerialDriver.kext/Contents/Resources/English.lproj/InfoPlist.strings: Operation not permitted
rm: /Library/StagedExtensions/System/Library/Extensions/FTDIUSBSerialDriver.kext/Contents/Resources/English.lproj: Operation not permitted
rm: /Library/StagedExtensions/System/Library/Extensions/FTDIUSBSerialDriver.kext/Contents/Resources: Operation not permitted
rm: /Library/StagedExtensions/System/Library/Extensions/FTDIUSBSerialDriver.kext/Contents/Info.plist: Operation not permitted
rm: /Library/StagedExtensions/System/Library/Extensions/FTDIUSBSerialDriver.kext/Contents: Operation not permitted
rm: /Library/StagedExtensions/System/Library/Extensions/FTDIUSBSerialDriver.kext: Operation not permitted
I checked to see what’s where:
→ mdfind -name FTDIUSBSerialDriver
/Users/bryannoll/Downloads/FTDIUSBSerialDriver_v2_2_18.dmg
That’s good, right? Just the installer.
I then reinstalled serialosc. And restarted. And during the restart, the computer shut down entirely. So I started back up and it shut down again. So then I unplugged the Arc and booted up in recovery mode to run some first aid in disk utility. It all checked out fine with no errors, so I restarted.
I then waited until opening Max (arc-test.maxpat) before plugging in the Arc. Still not recognized.
So I ran this again:
→ mdfind -name FTDIUSBSerialDriver
/Users/bryannoll/Downloads/FTDIUSBSerialDriver_v2_2_18.dmg
Is that still the expected result after having installed serialosc? I figured the Apple one would be listed, but I guess it’s named something else… right?
So… any idea of a next step?