Lab 5.2 clnt_create: RPC: Program not registered
After trying to run the CreateNFS.sh script (errors because of exportfs and showmount not found) and installing nfs-kernel-server manually, when running showmount -e localhost, I receive the following error:
clnt_create: RPC: Program not registered
What can I do?
Answers
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0
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0
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Hi @jnennen,
sudo showmount -e localhost
assumes that the installation and config steps of theCreateNFS.sh
script completed successfully, and that the/etc/hosts
file has a127.0.0.1 localhost
entry for name resolution purposes. If thehosts
file is incomplete, incorrect, or corrupted, you may try to replace localhost with its corresponding IP addresssudo showmount -e 127.0.0.1
.Regards,
-Chris0 -
Hey @chrispokorni,
unfortunately that didn't help, I get the same response as before. I also looked into the
/etc/hosts
file, it holds the correct127.0.0.1 localhost
entry.Regards,
Joachim0 -
Hi @jnennen,
Please provide the commands and their outputs from your terminal for the seven manual installation and config steps that are found in the CreateNFS.sh script, as they were performed on the control plane node.
Also, provide the outputs for:sudo ls -la /opt/sfw/ sudo cat /opt/sfw/hello.txt sudo cat /etc/exports
When setting up the GCE VMs, the VPC and its firewall, did you follow the recommendations form the demo video from the introductory chapter?
Regards,
-Chris0 -
Sure, here you go:
student@cp:~$ sudo apt-get update && sudo apt-get isntall -y nfs-kernel-server Hit:1 http://europe-west1.gce.archive.ubuntu.com/ubuntu focal InRelease Get:2 http://europe-west1.gce.archive.ubuntu.com/ubuntu focal-updates InRelease [114 kB] Hit:3 http://europe-west1.gce.archive.ubuntu.com/ubuntu focal-backports InRelease Hit:4 https://download.docker.com/linux/ubuntu focal InRelease Get:5 http://security.ubuntu.com/ubuntu focal-security InRelease [114 kB] Ign:6 https://packages.cloud.google.com/apt kubernetes-xenial InRelease Err:7 https://packages.cloud.google.com/apt kubernetes-xenial Release 404 Not Found [IP: 74.125.140.139 443] Get:8 http://security.ubuntu.com/ubuntu focal-security/main amd64 Packages [2774 kB] Get:9 http://security.ubuntu.com/ubuntu focal-security/main Translation-en [421 kB] Reading package lists... Done E: The repository 'https://apt.kubernetes.io kubernetes-xenial Release' no longer has a Release file. N: Updating from such a repository can't be done securely, and is therefore disabled by default. N: See apt-secure(8) manpage for repository creation and user configuration details. student@cp:~$ sudo mkdir /opt/sfw mkdir: cannot create directory ‘/opt/sfw’: File exists student@cp:~$ sudo bash -c "echo software > /opt/sfw/hello.txt" student@cp:~$ sudo bash -c "echo '/opt/sfw/ *(rw,sync,no_root_squash,subtree_check)' >> /etc/exports" student@cp:~$ sudo exportfs -ra exportfs: duplicated export entries: exportfs: *:/opt/sfw exportfs: *:/opt/sfw student@cp:~$ sudo showmount -e localhost clnt_create: RPC: Program not registered
The additional commands give this output:
student@cp:~$ sudo ls -la /opt/sfw/ total 12 drwxrwxrwt 2 root root 4096 Mar 7 19:21 . drwxr-xr-x 5 root root 4096 Mar 7 19:21 .. -rw-r--r-- 1 root root 9 Mar 11 17:03 hello.txt student@cp:~$ sudo cat /opt/sfw/hello.txt software student@cp:~$ sudo cat /etc/exports /opt/sfw/ *(rw,sync,no_root_squash,subtree_check) /opt/sfw/ *(rw,sync,no_root_squash,subtree_check) /opt/sfw/ *(rw,sync,no_root_squash,subtree_check) /opt/sfw/ *(rw,sync,no_root_squash,subtree_check) /opt/sfw/ *(rw,sync,no_root_squash,subtree_check) /opt/sfw/ *(rw,sync,no_root_squash,subtree_check) /opt/sfw/ *(rw,sync,no_root_squash,subtree_check)
(Guess the last is bc I tried it multiple times by now?)
I created the GCE VM and surroundings according to the recommendations from the demo video.
Regards,
Joachim0 -
Hi @jnennen,
It seems the
nfs-kernel-server
is not getting installed... perhaps the typo in your... apt-get isntall -y ...
command has something to do with that.
I'd also recommend cleaning up the/etc/exports
file to only include a single/opt/sfw/ * ...
entry.Once the typo above is fixed and the package successfully installed, what is the output of:
sudo systemctl list-units | grep nfs
I just attempted a clean manual install of the
nfs-kernel-server
package with all its configurations from the CreateNFS.sh script and I was not able to reproduce your issue. All steps from the script run without any issues.Regards,
-Chris0 -
I checked, the typo does not lead to the issues above,
nfs-kernel-server
is already installed.sudo apt-get update
is responsible for that, possibly because of the Kubernetes repo update?student@cp:~/app2$ sudo systemctl list-units | grep nfs proc-fs-nfsd.mount loaded active mounted NFSD configuration filesystem ● nfs-server.service loaded failed failed NFS server and services nfs-utils.service loaded active exited NFS server and client services
If you had no issues on a clean install I guess I will try to set that up later, thanks.
Regards,
Joachim0
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