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Lenovo Thinkcenter Edge71 Ubuntu Install and Boot Fix error 1962 no operating system found

Research Links

Error 1962 (No Operating System Found) on Lenovo systems indicates the BIOS cannot detect a bootable drive, often due to improper boot order or missing CSM/Legacy mode. If CSM is missing, ensure the BIOS is set to UEFI, change boot priority to UEFI First, check SATA cables, and potentially restore default BIOS settings. 

 

Notes

  1. Unit had Win 10 installed. 
  2. Installed Ubuntu from USB flash install drive – after install error flagged
  3. error 1962 no operating system – occurs at boot up. 
  4. BIOS date: 2-14-2014    Version 9QKT37AUS
  5. I can not find: CSM (Compatibility Support Module) in the BIOS
  6. I tried the boot repair method: Ubuntu.com: Error 1962: no operating system found after installing 12.04 (Lenovo ThinkCentre) – see below.  This page has many other methods tried by flailing users.

I had the same issue and the following worked for me:

  1. Run ubuntu from installation disk

  2. install and run boot-repair (you need internet access) 

    sudo add-apt-repository ppa:yannubuntu/boot-repair && sudo apt-get update
sudo apt-get install -y boot-repair && (boot-repair &)

  3. just choose the "Recommended Repair"

  4. boot from harddisk installation
  5. repeat steps 1-3
  6. restart.

it should work now.  ( It does not work )

 

The following partition is what was on the Ubuntu 500GB Seagate that I installed Ubuntu on. 

  • SDA – is the 500 gb hard drive
  • SDB – is the 64 gb USB stick used for Ubuntu installations

   

   

 

  

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Graph of Expected Maximum Deviation from Mean of a Normally Distributed Variable with Increasing Number of Samples

         

           

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Installing SeaMonkey on Ubuntu Linux

Research Links

Method 1: Using the Ubuntuzilla Repository

This method makes it easier to update SeaMonkey in the future via apt upgrade. 

  1. Open the Terminal (Ctrl+Alt+T).
  2. Add the Repository: Run the following command to add the repository to your system:

    cat <<EOF | sudo tee /etc/apt/sources.list.d/mozilla.list
deb http://downloads.sourceforge.net/project/ubuntuzilla/mozilla/apt all main
EOF
  3. Import the GPG Key: This ensures the package integrity.

    sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com 2667CA5C
  4. Update and Install: Update your package list and install the latest English build.

    sudo apt-get update
sudo apt-get install seamonkey-mozilla-build
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Surplus and Unclaimed Property and Funds

  Research Link AMoI: Private: Pennsylvania Unclaimed Property Website – Ohio has the same stuff on its property tax site YT: Surplus Funds Explained: How to Find Free  – summary – YTchannel  –  He's probably a scam because why share the knowledge if it's about money? YT: How To Work Deceased Claims – Read more

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How to Install Mattermost on a LocalHost Server

His Discord server: https://discord.com/invite/RjZWuyd

You can go direct, use docker or try with PPA.  Docer version of the install is said to be easier.   However for production installs the tarball method is better.   

?Open Source?

Mattermost Team Edition (open source) is a self-hosted, MIT-licensed platform designed for small to medium teams, allowing up to 250 users. While it allows for high, sometimes unlimited user counts in practice, it is largely limited by a 10,000-message search/visibility cap (as of recent changes), restricting historical access to conversations. 

Key Limitations of Team Edition:

  • Message/Search History: Restricted to 10,000 total messages. Older messages are inaccessible in search or navigation.
  • User Limit: Intended for smaller teams, often cited around 250 activated users.
  • Feature Gaps: Lacks advanced Enterprise features like SAML/SSO authentication, advanced compliance, granular permissions, and high-availability clustering.
  • Board Cards: Limited to 1,000 boards cards.
  • Support: No direct commercial support, relying on community forums. 

Installation Set 1:

Installation Set 2: 

Choose which technology base and installation method best supports your organization’s orchestration needs. All methods install Mattermost Entry — a free limited-use edition of Enterprise Advanced for technical evaluation, with the option to upload a license to unlock full access.

Alternatives:

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