Docker mounted volume adds ;C to end of windows path when translating from linux style path

Question

I\'ve found some interesting weirdness when trying to mount a docker image on windows.

I created a .sh script that does a mount of the project folder to

Answer 1

Mounting the current directory into a Docker container in Windows 10 from Git Bash (MinGW) may fail due to a POSIX path conversion. Any path starting with / is converted to a valid Windows path.

touch test.txt
docker run --rm -v $(pwd):/data busybox ls -la /data/test.txt
# ls: C:/Git/data/test.txt: No such file or directory

Escape the POSIX paths by prefixing with /

To skip the path conversion, all POSIX paths have to be prefixed with the extra leading slash (/), including /$(pwd).

touch test.txt
docker run --rm -v /$(pwd):/data busybox ls -la //data/test.txt
# -rwxr-xr-x    1 root     root             0 Jun 22 23:45 //data/test.txt

In Git Bash the path //data/test.txt is not converted and in Linux shells // (leading double slash) is ignored and treated the same way as /.

Disable the path conversion

Disable the POSIX path conversion in Git Bash (MinGW) using MSYS_NO_PATHCONV environment variable.

The path conversion can be disabled at the command level:

touch test.txt
MSYS_NO_PATHCONV=1 docker run --rm -v $(pwd):/data busybox ls -la /data/test.txt
# -rwxr-xr-x    1 root     root             0 Jun 22 23:45 /data/test.txt

The path conversion can be disabled at the shell (or system) level:

export MSYS_NO_PATHCONV=1
touch test.txt
docker run --rm -v $(pwd):/data busybox ls -la /data/test.txt
# -rwxr-xr-x    1 root     root             0 Jun 22 23:45 /data/test.txt