我尝试过多种代码来允许共享 Windows 文件夹中的文件可写。新创建的 VM 中的初始代码基于本教程。 这邮政有一个可接受的答案，我根据该答案编写了下面的代码。我尝试复制该帖子的积极结果，但失败了。
我的目标是在我家（即在野外无法访问）的网络中共享一个网站的源代码，只是为了看看是否可以做到。源代码是用于 Symfony 应用程序的，它需要网站的常规权限以及包含var其日志和缓存的子文件夹的 777 权限。我添加了一个名为的空文件xyz以测试其可写性。
环境：Windows 10 Pro，版本 22H2；VirtualBox v7 VM 和 Ubuntu Server 22.04.3。共享是\\geolaptop\diet。VM 已更新和升级。VM 用户是sam为了方便使用。以下是我使用过的命令序列（最佳重建）。
需要进行哪些更改才能使共享可写？
代码序列：
sudo apt update && sudo apt upgrade -y
sudo apt install virtualbox-guest-utils
sudo apt install samba
mkdir /home/sam/diet
sudo nano /etc/samba/smb.conf
[diet]
comment = Can sam work here?
path = /home/sam/diet
read only = no
browsable = yes
sudo service smbd restart
sudo ufw allow samba
sudo smbpasswd -a sam
sudo smbpasswd -e sam
sudo nano /etc/samba/smb.conf
[diet]
comment = Can sam work here?
path = /home/sam/diet
read only = no
browsable = yes
force user = sam
sudo service smbd restart
cd ./diet
nano xyz => not writable
sudo chmod -R 777 .
nano xyz => not writable
sudo nano /etc/samba/smb.conf
#map to guest = bad user
sudo service smbd restart
nano xyz => not writable
sudo nano /etc/samba/smb.conf
[diet]
comment = Can sam work here?
path = /home/sam/diet
read only = no
available = yes
browseable = yes
writable = yes
guest ok = no
public = yes
printable = no
locking = no
strict locking = no
sudo service smbd restart
nano xyz => not writable
sudo nano /etc/samba/smb.conf
[diet]
comment = Can sam work here?
path = /home/sam/diet
read only = no
available = yes
browseable = yes
writable = yes
guest ok = no
public = yes
printable = no
locking = no
strict locking = no
force create mode = 0660
force directory mode = 2770
force user = sam
force group = sam
sudo service smbd restart
nano xyz => not writable