Installation hands on

[Frazer-Nyambe]

i'm on the step below and the buffer is saying : [ Directory '/opt/karaf/bin' does not exist ]

Creating a setenv.sh Script for Karaf

Similar to Tomcat, our Karaf service is going to rely on a setenv shell script to determine environment variables Karaf needs in place when running. For now, this will simply be the path to JAVA_HOME, but this also accepts many other parameters you can find in the default setenv script.

/opt/karaf/bin/setenv | karaf:karaf/755

#!/bin/sh
export JAVA_HOME="PATH_TO_JAVA_HOME"

PATH_TO_JAVA_HOME: This will be the same JAVA_HOME we used when installing Tomcat , and can be found using the same method (i.e., still /usr/lib/jvm/java-11-openjdk-amd64 if that's what it was before).

[flummingbird]

Frazer-Nyambe, I think this is a similar problem to what you've faced before:

check this path:
ls /opt/karaf/
or
ls /opt/apache-karaf-*

if there isn't anything there go back to this step:

sudo wget -O karaf.tar.gz KARAF_TARBALL_LINK
sudo tar -xzvf karaf.tar.gz
sudo chown -R karaf:karaf KARAF_DIRECTORY
sudo mv KARAF_DIRECTORY/* /opt/karaf

The variables in ALL_CAPS are supplied by you, visit https://karaf.apache.org/download.html for the KARAF_TARBALL_LINK probably (https://dlcdn.apache.org/karaf/4.4.0/apache-karaf-4.4.0.tar.gz),

when you run sudo tar -xzvf karaf.tar.gz you should use the directory that outputs as the KARAF_DIRECTORY variable.
(if you ls /opt/apache-karaf-* I think that will help you find the correct directory, which I think is /opt/apache-karaf-4.4.0)

If you have more trouble let me know.

[Frazer-Nyambe]

The first code outputs:
frazer@frazer-Islandora:~$ ls /opt/karaf/
ls: cannot access '/opt/karaf/': No such file or directory

Then the second code outputs the following content:
frazer@frazer-Islandora:~$ ls /opt/apache-karaf-*
bin data etc lib NOTICE RELEASE-NOTES.md
BUILDING.md deploy examples LICENSE README.md system

[Frazer-Nyambe]

is there some code i would run to probably uninstall karaf and restart the whole installation process.

[Frazer-Nyambe]

So the directory 'opt/karaf' does not exist, where is it created?:

frazer@frazer-Islandora:/opt$ sudo mv /opt/apache-karaf-4.4.0/* opt/karaf
mv: target 'opt/karaf' is not a directory

[seth-shaw-unlv]

So the directory 'opt/karaf' does not exist, where is it created?:

opt/karaf is relative because it lacks the leading '/'. Try sudo mv /opt/apache-karaf-4.4.0/* /opt/karaf

Although, with Alpaca 2.0, you no longer need Karaf. The installation instructions should be updated to reflect that.

[Frazer-Nyambe]

@seth-shaw-unlv i'm still getting the below output:

frazer@frazer-Islandora:/opt$ sudo mv /opt/apache-karaf-4.4.0/* /opt/karaf
mv: target '/opt/karaf' is not a directory

[seth-shaw-unlv]

Well it looks like the step earlier in the instructions, sudo adduser karaf --ingroup karaf --home /opt/karaf --shell /usr/bin, wasn't successful in creating the home directory. I suppose you could try running that again, or simply create the directory manually: sudo mkdir /opt/karaf.

Alternatively, you could create a link instead of moving everything over: sudo ln -s /opt/apache-karaf-4.4.0 /opt/karaf.

[Frazer-Nyambe]

The file path below tells me that...... [ Directory '/opt/karaf/etc' does not exist ] ...... ON the step for Configuring Karaf Logging

frazer@frazer-Islandora:/opt$ sudo nano /opt/karaf/etc/org.pos4j.pax.logging.cfg

[Frazer-Nyambe]

or maybe help me with the uninstallation instructions so that i can restart the whole process for karaf

[flummingbird]

Sorry you're having so much trouble.

I think we can get what you have fixed.
ls /opt/apache-karaf-4.4.0/*

If it outputs bin data etc lib NOTICE RELEASE-NOTES.md
then you still have the files you need. We just need to get them to a directory.

If you can confirm that ls /opt/karaf
is not a directory try running sudo mkdir /opt/karaf
then ls /opt you should see karaf listed among other directories

Now you have a choice you can simlink as Seth Suggests (thanks seth!)
sudo ln -s /opt/apache-karaf-4.4.0 /opt/karaf
or you can move the files from one directory to the other as in
sudo mv /opt/apache-karaf-4.4.0/* /opt/karaf
this should work now that the directory /opt/karaf is properly created.

I do think we should also check that the karaf user is set up correctly too, cat you write:
groups karaf
If you get no user try sudo adduser karaf --ingroup karaf

[Frazer-Nyambe]

This worked thank you