# Problems with SCM Manager installation/start on Ubuntu 20.04

**URL:** <https://community.cloudogu.com/t/problems-with-scm-manager-installation-start-on-ubuntu-20-04/520>\
**Category:** SCM-Manager Bug Reports\
**Created:** [February 9, 2022, 3:03pm UTC](https://community.cloudogu.com/t/problems-with-scm-manager-installation-start-on-ubuntu-20-04/520 "2022-02-09T15:03:47Z")\
**Posts on this page:** 10\
**Page:** 1

<div class="post-metadata">

**Author:** ![christian.pommer](https://dub1.discourse-cdn.com/flex013/user_avatar/community.cloudogu.com/christian.pommer/32/830_2.png) [@christian.pommer](https://community.cloudogu.com/u/christian.pommer)\
**Post date:** [February 9, 2022, 3:03pm UTC](https://community.cloudogu.com/t/problems-with-scm-manager-installation-start-on-ubuntu-20-04/520/1 "2022-02-09T15:03:47Z")

</div>

Hello together,

I would like to install SCM Manager 2.30.X on a newly installed Ubuntu 20.04. I tried the Quickstart installation, which worked without error messages. Unfortunately, however, the server does not seem to start correctly.

The service seems to start but in the systemd journal I find the following lines:

```auto
Feb 09 15:54:54 host systemd[1]: Stopping SCM-Manager Server...
Feb 09 15:54:54 host systemd[1]: scm-server.service: Succeeded.
Feb 09 15:54:54 host systemd[1]: Stopped SCM-Manager Server.
Feb 09 15:54:54 host systemd[1]: Started SCM-Manager Server.
Feb 09 15:54:54 host scm-server[26667]: 2022-02-09 15:54:54.811:INFO::main: Logging initialized @112ms to org.eclipse.jetty.util.log.StdErrLog
Feb 09 15:54:54 host scm-server[26667]: 2022-02-09 15:54:54.963:INFO:oejs.Server:main: jetty-9.4.44.v20210927; built: 2021-09-27T23:02:44.612Z; git: 8da83308eeca865e495e53ef315a249d63b>
Feb 09 15:54:55 host scm-server[26667]: 2022-02-09 15:54:55.826:INFO:oejw.StandardDescriptorProcessor:main: NO JSP Support for /scm, did not find org.eclipse.jetty.jsp.JettyJspServlet
Feb 09 15:54:55 host scm-server[26667]: 2022-02-09 15:54:55.836:INFO:oejs.session:main: DefaultSessionIdManager workerName=node0
Feb 09 15:54:55 host scm-server[26667]: 2022-02-09 15:54:55.836:INFO:oejs.session:main: No SessionScavenger set, using defaults
Feb 09 15:54:55 host scm-server[26667]: 2022-02-09 15:54:55.838:INFO:oejs.session:main: node0 Scavenging every 660000ms
Feb 09 15:54:57 host scm-server[26667]: Feb 09, 2022 3:54:57 PM com.google.inject.servlet.GuiceFilter setPipeline
Feb 09 15:54:57 host scm-server[26667]: WARNING: Multiple Servlet injectors detected. This is a warning indicating that you have more than one GuiceFilter running in your web applicati>

```

One line says that the JSP support cannot be found. OpenJDK is installed, however:

```auto
openjdk version "11.0.13" 2021-10-19
OpenJDK Runtime Environment (build 11.0.13+8-Ubuntu-0ubuntu1.20.04)
OpenJDK 64-Bit Server VM (build 11.0.13+8-Ubuntu-0ubuntu1.20.04, mixed mode)

```

A check with netstat -tulpn | grep LISTEN shows that the SCM Manager cannot be found under port 8080 or 80.

I also tried a completely manual installation, with the same result. Do you have any ideas for me?

Many thanks and best regards

Christian

---

<div class="post-metadata">

**Author:** ![eheimbuch](https://dub1.discourse-cdn.com/flex013/user_avatar/community.cloudogu.com/eheimbuch/32/18_2.png) [@eheimbuch](https://community.cloudogu.com/u/eheimbuch)\
**Post date:** [February 10, 2022, 8:01am UTC](https://community.cloudogu.com/t/problems-with-scm-manager-installation-start-on-ubuntu-20-04/520/2 "2022-02-10T08:01:27Z")

</div>

Hey @christian.pommer,

your logs seem fine to me. You can ignore the warning about no JSP Support. It should still work without issues.

Do you use a reverse proxy? Have you seen the initialization setup via the WebUI?

Regards, Eduard

---

<div class="post-metadata">

**Author:** ![christian.pommer](https://dub1.discourse-cdn.com/flex013/user_avatar/community.cloudogu.com/christian.pommer/32/830_2.png) [@christian.pommer](https://community.cloudogu.com/u/christian.pommer)\
**Post date:** [February 10, 2022, 8:27am UTC](https://community.cloudogu.com/t/problems-with-scm-manager-installation-start-on-ubuntu-20-04/520/3 "2022-02-10T08:27:50Z")

</div>

Dear Eduard,  
thank you very much for your feedback.  
No, I have not yet set up a reverse proxy. The standard config is still valid, via port 8080. The firewall is still deactivated.  
No, I could not start the initialisation setup. Neither hostname:8080 nor hostname:8080/scm are reachable.  
Many thanks and best regards  
Christian

---

<div class="post-metadata">

**Author:** ![eheimbuch](https://dub1.discourse-cdn.com/flex013/user_avatar/community.cloudogu.com/eheimbuch/32/18_2.png) [@eheimbuch](https://community.cloudogu.com/u/eheimbuch)\
**Post date:** [February 10, 2022, 8:51am UTC](https://community.cloudogu.com/t/problems-with-scm-manager-installation-start-on-ubuntu-20-04/520/4 "2022-02-10T08:51:55Z")

</div>

Do you have the following lines somewhere in your logs?

```auto
2022-02-10 08:33:42.523:INFO:oejs.AbstractConnector:main: Started ServerConnector@7ff95560{HTTP/1.1, (http/1.1)}{0.0.0.0:8080}
2022-02-10 08:33:42.524:INFO:oejs.Server:main: Started @4809ms

```

---

<div class="post-metadata">

**Author:** ![christian.pommer](https://dub1.discourse-cdn.com/flex013/user_avatar/community.cloudogu.com/christian.pommer/32/830_2.png) [@christian.pommer](https://community.cloudogu.com/u/christian.pommer)\
**Post date:** [February 10, 2022, 9:30am UTC](https://community.cloudogu.com/t/problems-with-scm-manager-installation-start-on-ubuntu-20-04/520/5 "2022-02-10T09:30:46Z")

</div>

Unfortunately no, when I look at journalctl, I only find the following about the svm manager, after starting the service

```auto
Feb 10 10:27:08 host systemd[1]: Started SCM-Manager Server.
Feb 10 10:27:09 host scm-server[1287]: 2022-02-10 10:27:09.017:INFO::main: Logging initialized @137ms to org.eclipse.jetty.util.log.StdErrLog
Feb 10 10:27:09 host scm-server[1287]: 2022-02-10 10:27:09.182:INFO:oejs.Server:main: jetty-9.4.44.v20210927; built: 2021-09-27T23:02:44.612Z; git: 8da83308eeca865e495e53ef315a249d63ba>
Feb 10 10:27:09 host scm-server[1287]: 2022-02-10 10:27:09.776:INFO:oejw.StandardDescriptorProcessor:main: NO JSP Support for /scm, did not find org.eclipse.jetty.jsp.JettyJspServlet
Feb 10 10:27:09 host scm-server[1287]: 2022-02-10 10:27:09.786:INFO:oejs.session:main: DefaultSessionIdManager workerName=node0
Feb 10 10:27:09 host scm-server[1287]: 2022-02-10 10:27:09.786:INFO:oejs.session:main: No SessionScavenger set, using defaults
Feb 10 10:27:09 host scm-server[1287]: 2022-02-10 10:27:09.788:INFO:oejs.session:main: node0 Scavenging every 600000ms
Feb 10 10:27:11 host scm-server[1287]: Feb 10, 2022 10:27:11 AM com.google.inject.servlet.GuiceFilter setPipeline
Feb 10 10:27:11 host scm-server[1287]: WARNING: Multiple Servlet injectors detected. This is a warning indicating that you have more than one GuiceFilter running in your web applicatio>

```

---

<div class="post-metadata">

**Author:** ![pfeuffer](https://dub1.discourse-cdn.com/flex013/user_avatar/community.cloudogu.com/pfeuffer/32/72_2.png) [@pfeuffer](https://community.cloudogu.com/u/pfeuffer)\
**Post date:** [February 11, 2022, 10:10am UTC](https://community.cloudogu.com/t/problems-with-scm-manager-installation-start-on-ubuntu-20-04/520/6 "2022-02-11T10:10:42Z")

</div>

OK, the good news: I can reproduce this on an Ubuntu 20.04 VM. The bad news: I don’t know why. We’ll look into this and get back to you.

---

<div class="post-metadata">

**Author:** ![christian.pommer](https://dub1.discourse-cdn.com/flex013/user_avatar/community.cloudogu.com/christian.pommer/32/830_2.png) [@christian.pommer](https://community.cloudogu.com/u/christian.pommer)\
**Post date:** [February 11, 2022, 10:17am UTC](https://community.cloudogu.com/t/problems-with-scm-manager-installation-start-on-ubuntu-20-04/520/7 "2022-02-11T10:17:51Z")

</div>

Thank you very much for your effort. I also tried it today on a new VM and the problem reappeared.  
Should I downgrade to 18.04 lts, or change the distribution?

---

<div class="post-metadata">

**Author:** ![pfeuffer](https://dub1.discourse-cdn.com/flex013/user_avatar/community.cloudogu.com/pfeuffer/32/72_2.png) [@pfeuffer](https://community.cloudogu.com/u/pfeuffer)\
**Post date:** [February 11, 2022, 2:54pm UTC](https://community.cloudogu.com/t/problems-with-scm-manager-installation-start-on-ubuntu-20-04/520/8 "2022-02-11T14:54:24Z")

</div>

Today I learned something, thank you. Is this a freshly installed server? Than this might be your issue, too: The server simply had insufficient entropy to create the initial setup token.

After following [this answer](https://serverfault.com/a/214620), SCM-Manager started successfully. Simply install “rng-tools” and run them once:

```auto
sudo apt-get install rng-tools
sudo rngd -r /dev/urandom

```

Then restart SCM-Manager. I would love to hear whether this works for you 🙂

---

<div class="post-metadata">

**Author:** ![christian.pommer](https://dub1.discourse-cdn.com/flex013/user_avatar/community.cloudogu.com/christian.pommer/32/830_2.png) [@christian.pommer](https://community.cloudogu.com/u/christian.pommer)\
**Post date:** [February 11, 2022, 5:22pm UTC](https://community.cloudogu.com/t/problems-with-scm-manager-installation-start-on-ubuntu-20-04/520/9 "2022-02-11T17:22:51Z")

</div>

You are great. Now it works. Thank you very much!

---

<div class="post-metadata">

**Author:** ![felix.ebert](https://dub1.discourse-cdn.com/flex013/user_avatar/community.cloudogu.com/felix.ebert/32/1554_2.png) [@felix.ebert](https://community.cloudogu.com/u/felix.ebert)\
**Post date:** [July 22, 2022, 9:35am UTC](https://community.cloudogu.com/t/problems-with-scm-manager-installation-start-on-ubuntu-20-04/520/10 "2022-07-22T09:35:07Z")

</div>

I have closed this thread since there was no activity in the last 30 days.