The fix by @Vijayan Krishnan to a similar question by @Burak Aykenar works:

export OPENLANE_IMAGE_NAME=efabless/openlane:2022.02.23_02.50.41 make mount

tag name will be different. For MPW6 there are mpw-6a,6b,6c tags given. Only to

make mount

we have to point OPENLANE_IMAGE_NAME. This is also got fixed if valid

PYTHON_BIN

set. For caravel user project

make user_proj_example

above command not needed.