Can't get access to config.txt

Trying to install RaspBee…
I have installed Hassio (HASSOS), and I want to disable BT by changing the config.txt file, however when I insert the SD-card, I still get the “cannot read drive” message, and I do not get access to the boot-partition, which should have the config.txt file. DiskUtils can’t find any fat32 partitions.
I ams using MacOS, and the Hassio installation seems to be working just fine.
Any ideas?

Hi LSorensen,

did you solve it?

Hi mny,

did you solve it?

Hi bjornorri,

sorry for my late reply!

No - I did not solve it. To get it running I reinstalled HASSIO with an old Resinos image. As of now everything is up and running again.