longhorn: Longhorn manager not run on RancherOS

I try run Longhorn on RancherOS node, install open-iscsi after show error:

time="2019-10-23T13:36:56Z" level=info msg="Start overwriting built-in settings with customized values"
time="2019-10-23T13:36:56Z" level=info msg="Start Longhorn replica controller"
time="2019-10-23T13:36:56Z" level=info msg="Start Longhorn engine controller"
time="2019-10-23T13:36:56Z" level=info msg="Start Longhorn websocket controller"
time="2019-10-23T13:36:56Z" level=info msg="Start Longhorn Engine Image controller"
time="2019-10-23T13:36:56Z" level=info msg="Start Longhorn node controller"
time="2019-10-23T13:36:56Z" level=info msg="Start Longhorn Setting controller"
time="2019-10-23T13:36:56Z" level=info msg="Start kubernetes controller"
time="2019-10-23T13:36:56Z" level=info msg="Starting Longhorn instance manager controller"
time="2019-10-23T13:36:56Z" level=info msg="Start Longhorn volume controller"
time="2019-10-23T13:36:56Z" level=fatal msg="Error starting manager: cannot get disk info of directory /var/lib/rancher/longhorn/: Failed to execute: nsenter [--mount=/host/proc/5423/ns//mnt stat -fc {\"path\":\"%n\",\"fsid\":\"%i\",\"type\":\"%T\",\"freeBlock\":%f,\"totalBlock\":%b,\"blockSize\":%S} /var/lib/rancher/longhorn/], output , stderr, nsenter: failed to execute stat: No such file or directory\n, error exit status 1"

About this issue

Original URL
State: open
Created 5 years ago
Reactions: 1
Comments: 23 (2 by maintainers)

Most upvoted comments

I was able to get Longhorn working on RancherOS by running the following set of commands:

sudo wget https://busybox.net/downloads/binaries/1.31.0-i686-uclibc/busybox_STAT -O /bin/stat
sudo wget https://busybox.net/downloads/binaries/1.31.0-i686-uclibc/busybox_FLOCK -O /bin/flock
sudo chmod +x /bin/stat
sudo chmod +x /bin/flock
sudo ros s enable open-iscsi
sudo ros s up open-iscsi

This basically just downloads the missing utilities (stat, flock) from busybox and enables open-iscsi.

The issue is that the /bin folder doesn’t persist between reboots, so this isn’t a real solution. Seems like stat and flock would just need to be included in RancherOS and Longhorn would work fine.

+10

odensc on Apr 6, 2020

@raelix I think because RancherOS it’s in EOL, people are looking for other options.

gknepper on Jan 12, 2021

Changing to Ubuntu and ditching RancherOS fixed this. Must be some incompatibility with the latest RancherOS?

NagleIT on Nov 19, 2019