Store Rancher data in docker nfs volume

I create docker nfs volume ,
use command:

docker volume create --driver local
–opt type=nfs
–opt o=addr=,rw
–opt device=:/home/localadmin/rancher

And run ranccher 2.0 , mount nfs volume to /var/lib/rancher
use command:

docker run -d --restart=unless-stopped --name rancher -p 80:80 -p 443:443 -v rancher:/var/lib/rancher rancher/rancher

But rancher can’t start, the log message was:

etcdserver: another etcd process is using “/var/lib/rancher/etcd/member/snap/db” and holds the file lock.
etcdserver: waiting for it to exit before starting…
mvcc/backend: cannot open database at /var/lib/rancher/etcd/member/snap/db (no locks available)
panic: cannot open database at /var/lib/rancher/etcd/member/snap/db (no locks available)

Looks like etcd can’t access data,

Does rancher can’t store data in docker nfs volume??

Did you ever figure this out? Running into the same issue here.