Ambari UI not showing versions in cluster installation - hadoop

I've successfully installed Ambari server/agent 2.7.5 on my Centos 7 machine. Now i am facing an issue while installing a cluster in the install wizard at the "Select version" step. I have no versions showing in my dropdown. What can be the issue?
ps: see screenshots
my content in /var/lib/ambari-server/resources/stacks/HDP
install wizard screenshot

Now that ambari has come back to life, this conversation is relevant despite other stack members feels. Additionally 100s if not 1000s of companies are still using free open source ambari w/ free open source HDP.
When you are building ambari 2.7.5 from source, you need to feed it a stack. HDP was one of them, that is no NLA unless you copied it.
The last free HDP repos you need are found here:
https://www.makeopensourcegreatagain.com/rpms/
And you can find instructions about how to use these here:
https://github.com/steven-matison/dfhz_ddp_mpack

Step 1:
Copy HDP 3.0 and 3.1 Stack to /var/lib/ambari-server/resources/stacks/hdp, and then restart ambari-server
Step 2:
After clicking the "Add Version" button,for details, please refer to https://www.yuque.com/create17/mxswdh/pqrb9q#tsdHa
For the premise, you need to have an HDP-related RPM package.

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Windows 10 Magento 2.4 zip install on XAMPP has nowhere to agree to terms

I'm trying to get Magento 2.4 running using the production ready zip and I keep getting it to this point where I believe it's ready to start the setup process, but it's waiting for me to agree to the ToS. Unfortunately there's no agree button or instructions on if there's a file I need to edit. I just did a fresh install of XAMPP with PHP 7.4 and still have the same issue, and can't find a similar mention on google.
Is there supposed to be an agree button, do I need to edit a file?
Term & Agreement link leads here, still no agree button. Getting started link takes me to installation instructions for a Linux CLI
I saw I may still need to run the composer install command even on Windows, but I was under the impression the production ready zip already had the dependencies included. Where am I going wrong??
Update: I got composer running in windows terminal and it returns that there is nothing to install.
According to the official site docs, in a note at the top of the installation instructions for a CLI install of Magento 2.3:
"The Web Setup Wizard is being deprecated in Magento 2.3.6 and will be removed in Magento 2.4.0. After it is removed, you must use the command line to install or upgrade Magento."
So you cannot install Magento 2.4 without touching the command line.

Facing problem during Conference upgradation

I am a newbie in this arena. Due to project demand, I had to install the newest version of Confluence. So, I have taken the backup and install confluence 6.12 on top of 6.6. After completing the installation when I hit the URL I have got the following error message.
Roll back the instance by restoring the backup you made prior to attempting the upgrade. Do this by creating a fresh Confluence install (I would recommend using the same version of Confluence that you used to create your XML backup). Restore the XML backup to this.
Get that site working normally first.
Then connect to a supported database.
Proceed with the upgrade.

How do I add additional hosts to HDP cluster

I have installed a HDP 2.2.4.2 cluster with 2 nodes both having CentOS 6.6 OS. I need to add one more host to this cluster but i didnt find any option to do this on the the ambari console (ambari version is 2.0) . Is there any way I can add more hosts to this cluster?
It really depends on the version of Ambari you have. For Ambari 1.7.0, 2.1.0 and 2.1.1:
Go to the 'Hosts' tab. In the top left corner you will see an 'Actions' drop down button; within that drop down menu you will see 'Add New Hosts'.
I don't have a 2.0.0 environment to test on but I would imagine if versions prior to 2.0.0 and after have it in the same spot, it would also be located in the same place.
You can also add hosts using the REST API. Details can be found on the Ambari Wiki
On the top right corner there is an admin drop down button where you inspect your current nodes and add more as well.
You can find it under hosts tabs. Screenshot will make it more clear

Pivot4J not showing int Pentaho Business Analytics - Community Edition

I am taking a course on Coursera and we have been asked to use the community version of Pentaho Business Analytics (PBA).
I have download the latest PBA server and plugin for Pivot4J, however, when I launch the web interface and click on new, I do not see the Create Pivot4J View as shown in most demos.
I have launched the interface on 2 systems with Windows 8.1 Pro and Windows 10 Pro OS running on them.
Can someone help me out please as the deadline for me to turn in my work is in 3 days?
Thank you.
Please see screenshot below of what I have tried to explain above.
http://localhost:8080 Home Page
Try with 0.9 version from pivot4j site and maybe Pentaho 6 version is note yet supported so try 5.4 ba server.
You should download and unzip Pivot4J plugin into: ./pentaho-solutions/system folder in the BIserver, follow:
this link
or if this still does not show the pivot4j option you can install it through the Marketplace, there you can install/unistall pluggins, including pivot4j.
After you install or update stop and start the server and it will work.
When you unzip the file pivot4j-pentaho-0.9-plugin.zip it will create a folder called pivot4j. Don't move the contents in the folder move the entire folder to:
C:\program files\pentaho\biserver-ce\pentaho-solutions\system\pivot4j\
This is will work if you are not seeing the plugin in the drop down in Pentaho.
Granted everything else was done correctly.

Install Bitnami on RHEL

I am trying to install MediaWiki using the Bitnami stack on a RHEL server via command line. The installer is asking me for:
"Please choose a folder that contains an installation of Bitnami."
I have tried finding how I install Bitnami itself onto my server, but just keep getting results on how to install stacks.
How do I install Bitnami so I can install a stack?
Bitnami developer here,
Bitnami Native Installers come in two formats: stand-alone Stacks and Modules. If you only want to install one BitNami-packaged application, then just download and install the Stack. It will contain everything you need to run the application.
If you want to run more than one application, you may want to download a base AMPStack for your platform or RubyStack, which will enable you to install several application Modules on top of it, for example Wordpress module, Redmine module and Mediawiki module. That way, all of the BitNami-packaged applications you want to run will share a single instance of Apache, MySQL, PHP, etc which will save space and improve performance.
You can also install these modules on top of a Virtual Appliance or AMI with LAMP Stack or RubyStack installed. These modules could be also installed from the command line.
In your case, you should install modules.
This warning is due to the installer can not see the properties.ini file that we include in all our stacks. A module need a previous stack installation were it will be placed.
I hope it helps

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