diff --git a/build-tools/docker/README.md b/build-tools/docker/README.md
index fd523711e8..55054b94fe 100644
--- a/build-tools/docker/README.md
+++ b/build-tools/docker/README.md
@@ -1,112 +1,125 @@
 # Krita developer environment Docker image
 
 This *Dockerfile* is based on the official KDE build environmet [0]
 that in used on KDE CI for building official AppImage packages.
 Therefore running this image in a docker container is the best way
 to reproduce AppImage-only bugs in Krita.
 
 [0] - https://binary-factory.kde.org/job/Krita_Nightly_Appimage_Dependency_Build/
 
 ## Prerequisites
 
-Firstly we need to download deps and Krita source tree. These steps are not
+Firstly make sure you have Docker installed
+
+```bash
+sudo apt install docker docker.io
+```
+
+Then you need to download deps and Krita source tree. These steps are not
 included into the *Dockerfile* to save internal bandwidth (most Krita
 developers already have al least one clone of Krita source tree).
 
 ```bash
-# download the deps archive
-./bin/bootstrap-deps.sh
+# create directory structure for container control directory
+mkdir -p krita-master/persistent
+cd krita-master
 
-# mount/copy/chechout Krita sources to 'persistent/krita'
+# copy/chechout Krita sources to 'persistent/krita'
 cp -r /path/to/sources/krita ./persistent/krita
+
+# initialize control scripts and the Dockerfile
+./persistent/krita/build-tools/docker/bin/bootstrap-root.sh
+
+# download the deps archive
+./bin/bootstrap-deps.sh
 ```
 
 ## Build the docker image and run the container
 
 ```bash
 ./bin/build_image krita-deps
 ./bin/run_container krita-deps krita-master
 ```
 
 ## Enter the container and build Krita
 
 ```bash
 # enter the docker container (the name will be
 # fetched automatically from '.container_name' file)
 
 ./bin/enter
 
 # ... now your are inside the container with all the deps prepared ...
 
 # build Krita as usual
 cd appimage-workspace/krita-build/
 run_cmake.sh ~/persistent/krita
 make -j8 install
 
 # start Krita
 krita
 
 ```
 
 ## Extra developer tools
 
 To install QtCreator, enter container and start the installer, downloaded while
 fetching dependencies. Make sure you install it into '~/qtcreator' directory
 without any version suffixes, then you will be able to use the script below:
 
 ```bash
 # inside the container
 ./persistent/qt-creator-opensource-linux-x86_64-4.6.2.run
 ```
 
 To start QtCreator:
 
 ```bash
 # from the host
 ./bin/qtcreator
 ```
 
 ## Stopping the container and cleaning up
 
 When not in use you can stop the container. All your filesystem state is saved, but
 all the currently running processes are killed (just ensure you logout from all the
 terminals before stopping).
 
 ```bash
 # stop the container
 ./bin/stop
 
 # start the container
 ./bin/start
 ```
 
 If you don't need your container/image anymore, you can delete them from the docker
 
 ```bash
 # remove the container
 sudo docker rm krita-master
 
 # remove the image
 sudo docker rmi krita-deps
 ```
 
 TODO: do we need some extra cleaups for docker's caches?
 
 
 ## Troubleshooting
 
 ### Krita binary is not found after the first build
 
 Either relogin to the container or just execute `source ~/.devenv.inc`
 
 
 ### Not enough space on root partition
 
 All the docker images and containers are stored in a special docker-daemon controlled
 folder under */var* directory. You might not have enough space there for building Krita
 (it needs about 10 GiB). In such a case it is recommended to move the docker images
 folder into another location, where there is enough space.
 
 ```bash
 echo 'DOCKER_OPTS="-g /home/devel5/docker"' >> /etc/default/docker
 ```
diff --git a/build-tools/docker/bin/bootstrap-root.sh b/build-tools/docker/bin/bootstrap-root.sh
index 3f14cf7a01..ef810f3fe5 100755
--- a/build-tools/docker/bin/bootstrap-root.sh
+++ b/build-tools/docker/bin/bootstrap-root.sh
@@ -1,14 +1,14 @@
 #!/bin/bash
 
 if [ -d ./persistent/krita ]; then
    for i in 'bin default-home'; do
        if [ ! -d "$i" ]; then
           mkdir $i
        fi
    done
 
    cp persistent/krita/build-tools/docker/bin/* ./bin/
-   cp persistent/krita/build-tools/docker/default-home/* ./default-home/
+   cp persistent/krita/build-tools/docker/default-home/{,.}* ./default-home/
    cp persistent/krita/build-tools/docker/Dockerfile ./
    cp persistent/krita/build-tools/docker/README.md ./
 fi