Docker Desktop 4.35.0 can't mount anything anymore under windows

[paule96]

Description

since 4.35.0 the directory /run/desktop/mnt/host/ is missing inside the WSL docker-desktop distribution.
This results into mounting errors aka 'is not a file / directory'
This makes this version unusable for all people that want to mount things from the host os of docker desktop.

-v:

--mount:

if you go interactive into the docker-desktop wsl distro (wsl -d docker-desktop) and you try to see if even 'mnt' exists you will see that it is gone:

ls -lisa /run
      1      0 drwxr-xr-x   10 root     root           240 Oct 29 06:59 .
      2      4 drwxr-xr-x   20 root     root          4096 Oct 29 06:59 ..
      6      0 drwxr-xr-x    2 root     root           120 Oct 29 07:04 WSL
      9      0 drwxr-xr-x    4 root     root           460 Oct 29 06:59 guest-services
     10      0 drwxr-xr-x    2 root     root           380 Oct 29 06:59 host-services
     16      4 -rw-r--r--    1 root     root             2 Oct 29 06:59 linuxkit-parent.pid
      1      0 drwxrwxrwt    2 root     root            40 Oct 29 06:59 lock
      5      0 drwxr-xr-x    2 root     root            40 Oct 29 06:59 mount
      1      0 drwxrwxrwt    2 root     root            40 Oct 29 06:59 shm
     11      0 drwxr-xr-x    2 root     root            40 Oct 29 06:59 telemetry
      1      0 drwxr-xr-x    2 root     root            40 Oct 29 06:59 user
     12      4 -rw-r--r--    1 root     root             2 Oct 29 06:59 wsl-bootstrap.pid

Maybe it's similar to this issue: #14229

Reproduce

1. mkdir D:\labs\emptyfolder
2. docker run --mount type=bind,source=D:\labs\emptyfolder,target=/usr hello-world

Expected behavior

No response

docker version

Client:
Version: 27.3.1
API version: 1.47
Go version: go1.22.7
Git commit: ce12230
Built: Fri Sep 20 11:42:27 2024
OS/Arch: windows/amd64
Context: desktop-linux

Server: Docker Desktop 4.35.0 (172550)
Engine:
Version: 27.3.1
API version: 1.47 (minimum version 1.24)
Go version: go1.22.7
Git commit: 41ca978
Built: Fri Sep 20 11:41:11 2024
OS/Arch: linux/amd64
Experimental: false
containerd:
Version: 1.7.21
GitCommit: 472731909fa34bd7bc9c087e4c27943f9835f111
runc:
Version: 1.1.13
GitCommit: v1.1.13-0-g58aa920
docker-init:
Version: 0.19.0
GitCommit: de40ad0

docker info

Client:
Version: 27.3.1
Context: desktop-linux
Debug Mode: false
Plugins:
buildx: Docker Buildx (Docker Inc.)
Version: v0.17.1-desktop.1
Path: C:\Users\pjeschke.docker\cli-plugins\docker-buildx.exe
compose: Docker Compose (Docker Inc.)
Version: v2.29.7-desktop.1
Path: C:\Users\pjeschke.docker\cli-plugins\docker-compose.exe
debug: Get a shell into any image or container (Docker Inc.)
Version: 0.0.37
Path: C:\Users\pjeschke.docker\cli-plugins\docker-debug.exe
desktop: Docker Desktop commands (Alpha) (Docker Inc.)
Version: v0.0.15
Path: C:\Users\pjeschke.docker\cli-plugins\docker-desktop.exe
dev: Docker Dev Environments (Docker Inc.)
Version: v0.1.2
Path: C:\Users\pjeschke.docker\cli-plugins\docker-dev.exe
extension: Manages Docker extensions (Docker Inc.)
Version: v0.2.27
Path: C:\Users\pjeschke.docker\cli-plugins\docker-extension.exe
feedback: Provide feedback, right in your terminal! (Docker Inc.)
Version: v1.0.5
Path: C:\Users\pjeschke.docker\cli-plugins\docker-feedback.exe
init: Creates Docker-related starter files for your project (Docker Inc.)
Version: v1.3.0
Path: C:\Users\pjeschke.docker\cli-plugins\docker-init.exe
sbom: View the packaged-based Software Bill Of Materials (SBOM) for an image (Anchore Inc.)
Version: 0.6.0
Path: C:\Users\pjeschke.docker\cli-plugins\docker-sbom.exe
scout: Docker Scout (Docker Inc.)
Version: v1.14.0
Path: C:\Users\pjeschke.docker\cli-plugins\docker-scout.exe

Server:
Containers: 18
Running: 6
Paused: 0
Stopped: 12
Images: 562
Server Version: 27.3.1
Storage Driver: overlay2
Backing Filesystem: extfs
Supports d_type: true
Using metacopy: false
Native Overlay Diff: true
userxattr: false
Logging Driver: json-file
Cgroup Driver: cgroupfs
Cgroup Version: 1
Plugins:
Volume: local
Network: bridge host ipvlan macvlan null overlay
Log: awslogs fluentd gcplogs gelf journald json-file local splunk syslog
Swarm: inactive
Runtimes: io.containerd.runc.v2 nvidia runc
Default Runtime: runc
Init Binary: docker-init
containerd version: 472731909fa34bd7bc9c087e4c27943f9835f111
runc version: v1.1.13-0-g58aa920
init version: de40ad0
Security Options:
seccomp
Profile: unconfined
Kernel Version: 5.15.153.1-microsoft-standard-WSL2
Operating System: Docker Desktop
OSType: linux
Architecture: x86_64
CPUs: 20
Total Memory: 31.18GiB
Name: docker-desktop
ID: 486ae113-d82a-4eb4-8e46-6a14d42fcf59
Docker Root Dir: /var/lib/docker
Debug Mode: false
HTTP Proxy: http.docker.internal:3128
HTTPS Proxy: http.docker.internal:3128
No Proxy: hubproxy.docker.internal
Labels:
com.docker.desktop.address=npipe://\.\pipe\docker_cli
Experimental: false
Insecure Registries:
hubproxy.docker.internal:5555
127.0.0.0/8
Live Restore Enabled: false

WARNING: No blkio throttle.read_bps_device support
WARNING: No blkio throttle.write_bps_device support
WARNING: No blkio throttle.read_iops_device support
WARNING: No blkio throttle.write_iops_device support
WARNING: daemon is not using the default seccomp profile

Diagnostics ID

E30A72F7-08DF-4ABC-A958-7602EEE49226/20241029071855

Additional Info

No response

[paule96]

even a downgrade to 4.34.3 doesn't help. (but you lose everything....)

[paule96]

probably connected to an WSL issue:
microsoft/WSL#10792

So it's maybe more connected to a windows update then to a docker update

[SergeyZa]

@paule96
Oh, thank you! That was it for me!