ollama version is 0.12.5

ubuntu 24.04 64bit

问题：设置OLLAMA_MODELS=/home/username/ollama/models后，ollama服务无法启动，查看日志：ollama[779068]: Error: mkdir /home/username/ollama: permission denied: ensure path elements are traversable

说是权限问题，但是通过sudo chown +R 修改目录所有者为ollama，还是无效。后来在github上看到：https://github.com/ollama/ollama/issues/2147

The issue, as also described in the post, is that ollama tries to create the entire directory structure which you specify in the OLLAMA_MODELS environment variable. So even if you do a chown -R ollama:ollama /my/path/model_dir ollama tries to do a mkdir /my/path and errors out. The solution in the forum post is do a bind mount:

sudo mount --bind /my/path/model_dir /usr/share/ollama/.ollama/models

大概意思是ollama会创建整个目录结构。

后来我直接把/etc/systemd/system/ollama.service.d/override.conf里的用户名和组都改成自己用户名，再重启服务就可以了。