failed to register layer: open xxx no such file or directory

今天遇到一个镜像下载失败的问题，如下

failed to register layer: open /ssd/docker/overlay2/8b59377a7b63cd2014d31a3a885353c107f2aad1fb07886c92e1aa35732b3d21/committed: no such file or directory

搜索网上的解决办法，比如

docker system prune -a

然后

systemctl stop docker
systemctl start docker  
# 注意不是 systemctl restart docker

都无法解决，后来确定删除 docker 环境，重新安装

先停止 docker

root@gpu610:/ssd# systemctl stop docker
root@gpu610:/ssd# systemctl status docker
● docker.service - Docker Engine
   Loaded: loaded (/etc/systemd/system/docker.service; enabled; vendor preset: enabled)
   Active: inactive (dead) since Mon 2021-11-29 16:02:31 CST; 1min 2s ago
  Process: 21851 ExecStartPost=/sbin/iptables -I FORWARD -s 0.0.0.0/0 -j ACCEPT (code=exited, status=0/SUCCESS)
  Process: 21555 ExecStart=/usr/bin/dockerd -H unix:// $OPTIONS $DOCKER_STORAGE_OPTIONS $DOCKER_OPTS $DOCKER_NETWORK_OPTIONS $ADD_REGISTRY $BLOCK_REGISTRY $INSECURE_REGISTRY --data-root=/
 Main PID: 21555 (code=exited, status=0/SUCCESS)

删除 docker 目录

root@gpu610:/ssd# rm -rf /ssd/docker

root@gpu610:/ssd# ll /var/lib/docker
lrwxrwxrwx 1 root root 11 Jan 20  2020 /var/lib/docker -> /ssd/docker
root@gpu610:/ssd# rm -rf /var/lib/docker
root@gpu610:/ssd# ll /var/lib/docker
ls: cannot access '/var/lib/docker': No such file or directory
root@gpu610:/ssd# 

重新安装 docker 后，再次 docker pull 成功