docker rm 报错 Error response from daemon: Driver overlay failed to remove root filesystem xxxxxxxxxxx-优快云博客

本文链接：https://blog.youkuaiyun.com/raoxiaoya/article/details/123352781

在尝试删除Docker容器33ca9f5ac99b时遇到了错误，错误信息显示driver overlay无法删除root filesystem，原因可能是文件被其他进程占用。通过grep命令定位到占用资源的进程ID为3235和3381，使用kill -9命令终止这两个进程后，再次尝试删除容器成功。

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docker 删除容器报错

docker rm 33ca9f5ac99b

Error response from daemon: Driver overlay failed to remove root filesystem 33ca9f5ac99b0925c63b5fd15a1f0751912d13fd22533179fc5e486258ebfe77: remove /var/lib/docker/overlay/7a3cea39df7ef4628e20d635fe6d120aed97ea9d07cfca1d300dda15e77bba97/merged: device or resource busy

应该是挂在的文件被其他进程占用了。

> grep docker /proc/*/mountinfo|grep 7a3cea39df7ef4628e20d635fe6d120aed97ea9d07cfca1d300dda15e77bba97

/proc/3235/mountinfo:211 194 0:76 / /var/lib/docker/overlay/7a3cea39df7ef4628e20d635fe6d120aed97ea9d07cfca1d300dda15e77bba97/merged rw,relatime shared:118 - overlay overlay rw,lowerdir=/var/lib/docker/ov                          erlay/faa6b36051d2aaed6d1b5f08b0348402581bb4360d7ee974b3ee71f9fb97ac95/root,upperdir=/var/lib/docker/overlay/7a3cea39df7ef4628e20d635fe6d120aed97ea9d07cfca1d300dda15e77bba97/upper,workdir=/var/lib/docker                          /overlay/7a3cea39df7ef4628e20d635fe6d120aed97ea9d07cfca1d300dda15e77bba97/work
/proc/3381/mountinfo:211 194 0:76 / /var/lib/docker/overlay/7a3cea39df7ef4628e20d635fe6d120aed97ea9d07cfca1d300dda15e77bba97/merged rw,relatime shared:118 - overlay overlay rw,lowerdir=/var/lib/docker/ov                          erlay/faa6b36051d2aaed6d1b5f08b0348402581bb4360d7ee974b3ee71f9fb97ac95/root,upperdir=/var/lib/docker/overlay/7a3cea39df7ef4628e20d635fe6d120aed97ea9d07cfca1d300dda15e77bba97/upper,workdir=/var/lib/docker                          /overlay/7a3cea39df7ef4628e20d635fe6d120aed97ea9d07cfca1d300dda15e77bba97/work

找到进程ID

> grep docker /proc/*/mountinfo|grep 7a3cea39df7ef4628e20d635fe6d120aed97ea9d07cfca1d300dda15e77bba97 | awk -F ":" '{print $1}' | awk -F "/" '{print $3}'
3235
3381

> kill -9 3235 3381
> docker rm  33ca9f5ac99b