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Folder shared via volume not mounted in mac #318

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opened 2025-12-29 00:24:08 +01:00 by adam · 1 comment
adam commented 2025-12-29 00:24:08 +01:00
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Originally created by @trompx on GitHub (Jan 28, 2022).

NAME="Linux Mint"
PRETTY_NAME="Linux Mint 20.1"
VERSION_CODENAME=ulyssa
UBUNTU_CODENAME=focal
QEMU emulator version 4.2.1 (Debian 1:4.2-3ubuntu6.19)
libvirtd (libvirt) 6.0.0
free: Multiple unit options doesn't make sense.
8
16
crw-rw----+ 1 root kvm 10, 232 Jan 28 10:45 /dev/kvm
total 16K
drwxrwxrwt  2 root root 4.0K Jan 26 16:30 .
drwxrwxrwt 21 root root  12K Jan 28 11:03 ..
srwxrwxrwx  1 root root    0 Jan 26 16:30 X0
root        2147  0.9  0.2 2344676 45424 ?       Ssl  Jan26  25:11 /usr/bin/dockerd -H unix://
myuser   240658  0.0  0.0   9044  2496 pts/8    S+   11:04   0:00 grep --color=auto dockerd
6d1ae75fa7b8   sickcodes/docker-osx:monterey   "/bin/bash -c 'sudo …"   20 minutes ago   Up 20 minutes   0.0.0.0:50922->10022/tcp, :::50922->10022/tcp   serene_cori
kvm:x:108:
docker:x:1501:myuser
libvirt:x:138:myuser
libvirt-qemu:x:64055:libvirt-qemu
libvirt-dnsmasq:x:139:

Hello @sickcodes,

I followed the instructions at https://github.com/sickcodes/Docker-OSX#share-folder-with-docker-osx-qemu-macos to mount some documents inside the mac. Unfortunately, the folder I share via volume is not found on the mac.

First I downloaded the catalina from https://images2.sick.codes/mac_hdd_ng_auto.img.
I also downloaded the full pre-installed catalina image, and both the big-sur and monterey image.
For the big-sur and monterey, I run the container to erase the disk then proceed to the installation. Once done, I copied the mac_hdd_ng.img from the installed docker images in /var/lib/docker to a folder owned by my user.
By the way, my user has a UID=1500, and the copied images are owned by 1000:1000 user.

So I have the following images:

  • mac_hdd_ng_big_sur.img
  • mac_hdd_ng_monterey.img
  • mac_hdd_ng_auto.img

For each images I tried the following without success:

SHARE=/path/myfolder
# OSX_IMAGE=/path/mac_hdd_ng_auto.img
# OSX_IMAGE=/path/mac_hdd_ng_monterey.img
OSX_IMAGE=/path/mac_hdd_ng_big_sur.img

# Attempt 1 - NAKED -> works
docker run -it \
  --device /dev/kvm \
  -p 50922:10022 \
  -v "${OSX_IMAGE}:/image" \
  -v /tmp/.X11-unix:/tmp/.X11-unix \
  -v "${SHARE}:/mnt/hostshare" \
  -e "DISPLAY=${DISPLAY:-:0.0}" \
  -e EXTRA="-virtfs local,path=/mnt/hostshare,mount_tag=hostshare,security_model=passthrough,id=hostshare" \
  -e GENERATE_UNIQUE=true \
  -e MASTER_PLIST_URL=https://raw.githubusercontent.com/sickcodes/osx-serial-generator/master/config-custom.plist \
  sickcodes/docker-osx:naked

# Attempt 2 - AUTO -> works but have to sudo -S mount_9p manually
docker run -it \
  --device /dev/kvm \
  -p 50922:10022 \
  -v "${OSX_IMAGE}:/home/arch/OSX-KVM/mac_hdd_ng.img" \
  -v /tmp/.X11-unix:/tmp/.X11-unix \
  -v "${SHARE}:/mnt/hostshare" \
  -e OSX_COMMANDS="echo alpine | sudo -S mount_9p hostshare && /bin/bash" \
  -e "DISPLAY=${DISPLAY:-:0.0}" \
  -e EXTRA="-virtfs local,path=/mnt/hostshare,mount_tag=hostshare,security_model=passthrough,id=hostshare" \
  sickcodes/docker-osx:auto

# Attempt 3 - AUTO -> works but have to sudo -S mount_9p manually
docker run -it \
  --device /dev/kvm \
  -p 50922:10022 \
  -v "${OSX_IMAGE}:/home/arch/OSX-KVM/mac_hdd_ng.img" \
  -v /tmp/.X11-unix:/tmp/.X11-unix \
  -v "${SHARE}:/mnt/hostshare" \
  -e "DISPLAY=${DISPLAY:-:0.0}" \
  -e OSX_COMMANDS="echo alpine | sudo -S mount_9p hostshare && /bin/bash" \
  -e EXTRA="-virtfs local,path=/mnt/hostshare,mount_tag=hostshare,security_model=passthrough,id=hostshare" \
  -e GENERATE_UNIQUE=true \
  -e MASTER_PLIST_URL=https://raw.githubusercontent.com/sickcodes/osx-serial-generator/master/config-custom.plist \
  sickcodes/docker-osx:naked

Any idea?

Also is it correct that:

  • when using the auto image, I have to bind mount -v "${OSX_IMAGE}:/home/arch/OSX-KVM/mac_hdd_ng.img" ?
  • when using the naked image, I have to bind mount -v "${OSX_IMAGE}":/image ?
  • with the auto image, it should auto mount at start thanks to OSX_COMMANDS ?

Unrelated question: after the macos installation, I want to configure the system a bit and do some more installation. To copy the image from the /var/lib/docker, should I dot it while the guest is still up and running, or I have to shut down first then copy the image? Because the options I change in system preferences (like keyboard or mouse settings) are not saved between docker run.
Also, is it possible to install directly the big sur os inside Dockerfile or I have to download your image first then do the installation manually before copying the image to use it in the naked image?

Thank you in advance

EDIT:
I don't exactly what I did but after a host reboot I can share the folder manually sudo -S mount_9p hostshare with the naked image.
I still can't automatically mount with the auto image.

Originally created by @trompx on GitHub (Jan 28, 2022). ``` NAME="Linux Mint" PRETTY_NAME="Linux Mint 20.1" VERSION_CODENAME=ulyssa UBUNTU_CODENAME=focal QEMU emulator version 4.2.1 (Debian 1:4.2-3ubuntu6.19) libvirtd (libvirt) 6.0.0 free: Multiple unit options doesn't make sense. 8 16 crw-rw----+ 1 root kvm 10, 232 Jan 28 10:45 /dev/kvm total 16K drwxrwxrwt 2 root root 4.0K Jan 26 16:30 . drwxrwxrwt 21 root root 12K Jan 28 11:03 .. srwxrwxrwx 1 root root 0 Jan 26 16:30 X0 root 2147 0.9 0.2 2344676 45424 ? Ssl Jan26 25:11 /usr/bin/dockerd -H unix:// myuser 240658 0.0 0.0 9044 2496 pts/8 S+ 11:04 0:00 grep --color=auto dockerd 6d1ae75fa7b8 sickcodes/docker-osx:monterey "/bin/bash -c 'sudo …" 20 minutes ago Up 20 minutes 0.0.0.0:50922->10022/tcp, :::50922->10022/tcp serene_cori kvm:x:108: docker:x:1501:myuser libvirt:x:138:myuser libvirt-qemu:x:64055:libvirt-qemu libvirt-dnsmasq:x:139: ``` Hello @sickcodes, I followed the instructions at https://github.com/sickcodes/Docker-OSX#share-folder-with-docker-osx-qemu-macos to mount some documents inside the mac. Unfortunately, the folder I share via volume is not found on the mac. First I downloaded the catalina from https://images2.sick.codes/mac_hdd_ng_auto.img. I also downloaded the full pre-installed catalina image, and both the big-sur and monterey image. For the big-sur and monterey, I run the container to erase the disk then proceed to the installation. Once done, I copied the mac_hdd_ng.img from the installed docker images in /var/lib/docker to a folder owned by my user. By the way, my user has a **UID=1500**, and the copied images are **owned by 1000:1000** user. So I have the following images: - mac_hdd_ng_big_sur.img - mac_hdd_ng_monterey.img - mac_hdd_ng_auto.img For each images I tried the following without success: ```shell SHARE=/path/myfolder # OSX_IMAGE=/path/mac_hdd_ng_auto.img # OSX_IMAGE=/path/mac_hdd_ng_monterey.img OSX_IMAGE=/path/mac_hdd_ng_big_sur.img # Attempt 1 - NAKED -> works docker run -it \ --device /dev/kvm \ -p 50922:10022 \ -v "${OSX_IMAGE}:/image" \ -v /tmp/.X11-unix:/tmp/.X11-unix \ -v "${SHARE}:/mnt/hostshare" \ -e "DISPLAY=${DISPLAY:-:0.0}" \ -e EXTRA="-virtfs local,path=/mnt/hostshare,mount_tag=hostshare,security_model=passthrough,id=hostshare" \ -e GENERATE_UNIQUE=true \ -e MASTER_PLIST_URL=https://raw.githubusercontent.com/sickcodes/osx-serial-generator/master/config-custom.plist \ sickcodes/docker-osx:naked # Attempt 2 - AUTO -> works but have to sudo -S mount_9p manually docker run -it \ --device /dev/kvm \ -p 50922:10022 \ -v "${OSX_IMAGE}:/home/arch/OSX-KVM/mac_hdd_ng.img" \ -v /tmp/.X11-unix:/tmp/.X11-unix \ -v "${SHARE}:/mnt/hostshare" \ -e OSX_COMMANDS="echo alpine | sudo -S mount_9p hostshare && /bin/bash" \ -e "DISPLAY=${DISPLAY:-:0.0}" \ -e EXTRA="-virtfs local,path=/mnt/hostshare,mount_tag=hostshare,security_model=passthrough,id=hostshare" \ sickcodes/docker-osx:auto # Attempt 3 - AUTO -> works but have to sudo -S mount_9p manually docker run -it \ --device /dev/kvm \ -p 50922:10022 \ -v "${OSX_IMAGE}:/home/arch/OSX-KVM/mac_hdd_ng.img" \ -v /tmp/.X11-unix:/tmp/.X11-unix \ -v "${SHARE}:/mnt/hostshare" \ -e "DISPLAY=${DISPLAY:-:0.0}" \ -e OSX_COMMANDS="echo alpine | sudo -S mount_9p hostshare && /bin/bash" \ -e EXTRA="-virtfs local,path=/mnt/hostshare,mount_tag=hostshare,security_model=passthrough,id=hostshare" \ -e GENERATE_UNIQUE=true \ -e MASTER_PLIST_URL=https://raw.githubusercontent.com/sickcodes/osx-serial-generator/master/config-custom.plist \ sickcodes/docker-osx:naked ``` Any idea? Also is it correct that: - when using the **auto** image, I have to bind mount` -v "${OSX_IMAGE}:/home/arch/OSX-KVM/mac_hdd_ng.img"` ? - when using the **naked** image, I have to bind mount` -v "${OSX_IMAGE}":/image` ? - with the auto image, it should auto mount at start thanks to OSX_COMMANDS ? Unrelated question: after the macos installation, I want to configure the system a bit and do some more installation. To **copy the image** from the /var/lib/docker, should I dot it **while the guest is still up and running**, or I have to **shut down first then copy the image**? Because the options I change in system preferences (like keyboard or mouse settings) are not saved between docker run. Also, is it possible to install directly the big sur os inside Dockerfile or I have to download your image first then do the installation manually before copying the image to use it in the naked image? Thank you in advance **EDIT:** I don't exactly what I did but after a host reboot I can share the folder manually `sudo -S mount_9p hostshare` with the naked image. I still **can't automatically mount with the auto image**.
adam commented 2025-12-29 00:24:09 +01:00
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@sickcodes commented on GitHub (Feb 8, 2022):

Auto image might need a reset NVRAM since it didn't have a volume when it was made. It's quite an old image, should still works, but Monterey is the best one to use at the moment.

@sickcodes commented on GitHub (Feb 8, 2022): Auto image might need a reset NVRAM since it didn't have a volume when it was made. It's quite an old image, should still works, but Monterey is the best one to use at the moment.
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