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Today — 4 July 2025Main stream

KLUG and Life Update

✇Annamalai
By: Annamalai N
1 September 2024 at 00:00

  • After a long time, I am writing this blog as I had an hectic semester (Semester 6) with acads, Spider R&D, BMS (Battery Management Systems) project and participating in TOP-IMSD'24 (Will write one about this in future!) (Ah Placement Exams too :|).

  • Then I had went for an Internship to a company as a Hardware Research Intern but I was told to automate some testing instruments like DSO, Load Analyzer, Logic Analyzer etc.

  • Finally after all these I entered into my final year and having some peace i.e time to work on some other exciting projects and improve myself!. So I'm planning to be a little regular in blogging which implies that I do will spend some time exploring new.

Notes from KLUG session

  • Today I attended the Kanchipuram Linux Users Group's (KLUG) Weekly Meet for a while and I got to know about,
    • dotenvx and sujo

dotenvx

  • To manage env, config management for whatever software, programs you develop in whichever language and also solving all problems previously was with dotenv !

soju

  • It is a IRC Bouncer that can be used for logging data from IRC channels. Need to explore on how to use and configure it.

  • Also got to know about how to generate PDFs of websites using headless chromium.

Before yesterdayMain stream

Linux Mint Installation Drive – Dual Boot on 10+ Machines!

✇Parotta Salna
By: Mr.ParottaSalna
24 February 2025 at 16:18

Linux Mint Installation Drive – Dual Boot on 10+ Machines!

Hey everyone! Today, we had an exciting Linux installation session at our college. We expected many to do a full Linux installation, but instead, we set up dual boot on 10+ machines! 💻✨

💡 Topics Covered:
🛠 Syed Jafer – FOSS, GLUGs, and open-source communities
🌍 Salman – Why FOSS matters & Linux Commands
🚀 Dhanasekar – Linux and DevOps
🔧 Guhan – GNU and free software

Challenges We Faced


🔐 BitLocker Encryption – Had to disable BitLocker on some laptops
🔧 BIOS/UEFI Problems – Secure Boot, boot order changes needed
🐧 GRUB Issues – Windows not showing up, required boot-repair

🎥 Watch the installation video and try it yourself! https://www.youtube.com/watch?v=m7sSqlam2Sk


▶ Linux Mint Installation Guide https://tkdhanasekar.wordpress.com/2025/02/15/installation-of-linux-mint-22-1-cinnamon-edition/

This is just the beginning!

Open Source projects mentoring via IRC

✇Shrini
By: tshrinivasan
21 October 2024 at 02:46

In the programming world, if you say as ‘ I prefer watching videos, than reading docs’ it means you are a programmer already or you won’t become a programmer.

Do you feel that you are struggling to be a good programmer, even after watching 100s of hours of videos?

Let me share one secret. It is the fear of reading and writing PlainText. The more you go away from reading and writing, programming will go away from you.

Programming is all about dealing with the code, error messages, log files, documentation. All in PlainText. We have emails, tickets, docs, reports too there on the stack of IT life.

If you love terminal and PlainText tools, you are already into reading and writing. The more you read and write, the more you can get clarity in thinking, which is the essential part of programming.

To embrace the simplicity and powers of PlainText, few friends started to discuss in IRC. yes, the same 40+ years old Internet Relay Chat, an chat system which built the internet itself via chat.

Thanks to Indian Linux Users Group, Chennai, KanchiLUG, Kaniyam Foundation friends for joining the chat.

Read my post on why I like IRC here https://goinggnu.wordpress.com/2020/04/14/why-i-like-irc-internet-relay-chat-even-in-2020/

Here is small video in Tamil by my friend Muthuramalingam of Payilagam – https://www.youtube.com/watch?v=CGurYNb0BM8

From today, 7-8 IST evenings, we can discuss at channel at irc.libera.chat

I suggest a terminal based chat client “weechat”

But, for a quick connection, use this link to join and discuss. https://web.libera.chat/gamja/#kaniyam

Start Date – 21 Oct 2024 ( Monday to Friday )
Time – 7-8 pm IST
server – irc.libera.chat
channel –

read the chat logs here – https://ircbot.comm-central.org:8080/kaniyam

join and say something about you.

  • feel like a hacker by chatting with people in your linux terminal
  • get mentored on hactoberfest
  • ask any questions on linux/python/programming/devops
  • share your daily progress on learning and programming
  • practice reading and writing PlainText
  • learn slowly and strongly

See you at IRC.

If you are interested in mentoring students for open source projects, please join and start the discussions.

The other interesting channels that people chat are #ubuntu  you can join there and participate on the discussions anytime.

Open Source projects mentoring via IRC

✇Shrini
By: tshrinivasan
21 October 2024 at 02:46

In the programming world, if you say as ‘ I prefer watching videos, than reading docs’ it means you are a programmer already or you won’t become a programmer.

Do you feel that you are struggling to be a good programmer, even after watching 100s of hours of videos?

Let me share one secret. It is the fear of reading and writing PlainText. The more you go away from reading and writing, programming will go away from you.

Programming is all about dealing with the code, error messages, log files, documentation. All in PlainText. We have emails, tickets, docs, reports too there on the stack of IT life.

If you love terminal and PlainText tools, you are already into reading and writing. The more you read and write, the more you can get clarity in thinking, which is the essential part of programming.

To embrace the simplicity and powers of PlainText, few friends started to discuss in IRC. yes, the same 40+ years old Internet Relay Chat, an chat system which built the internet itself via chat.

Thanks to Indian Linux Users Group, Chennai, KanchiLUG, Kaniyam Foundation friends for joining the chat.

Read my post on why I like IRC here https://goinggnu.wordpress.com/2020/04/14/why-i-like-irc-internet-relay-chat-even-in-2020/

Here is small video in Tamil by my friend Muthuramalingam of Payilagam – https://www.youtube.com/watch?v=CGurYNb0BM8

From today, 7-8 IST evenings, we can discuss at #kaniyam channel at irc.libera.chat

I suggest a terminal based chat client “weechat”

But, for a quick connection, use this link to join and discuss. https://web.libera.chat/gamja/#kaniyam

Start Date – 21 Oct 2024 ( Monday to Friday )
Time – 7-8 pm IST
server – irc.libera.chat
channel – #kaniyam

read the chat logs here – https://ircbot.comm-central.org:8080/kaniyam

join and say something about you.

  • feel like a hacker by chatting with people in your linux terminal
  • get mentored on hactoberfest
  • ask any questions on linux/python/programming/devops
  • share your daily progress on learning and programming
  • practice reading and writing PlainText
  • learn slowly and strongly

See you at IRC.

If you are interested in mentoring students for open source projects, please join and start the discussions.

The other interesting channels that people chat are #ilugc #dgplug #emacs #kde #ubuntu  you can join there and participate on the discussions anytime.

Kanchilug Monthly Meet – Oct ,13 2024

✇HariHaran
By: Hariharan
13 October 2024 at 16:30

Lightning Talk by Krishna

Topic : Desktop Customization : picom, pywal

Resource : Krishna S

SSD File System Comparison : https://www.linux.org/threads/comparison-of-file-systems-for-an-ssd.28780/

https://etherpad.wikimedia.org/p/KanchiLUGMMOct13

Notes on Choosing HDD to SSD Linux Installation migration

Chat GPT Prompt : how to backup current linux installation configuration files and packages list as a archive and apply on a new installation

Result

Backing up your current Linux installation’s configuration files and package lists is a great way to ensure you can easily restore or replicate your setup on a new installation. Here’s how you can do it:

Step 1: Backup Configuration Files

  1. Identify Configuration Files: Most configuration files are located in /etc. You may also have application-specific configurations in your home directory (like .bashrc, .vimrc, etc.).
  2. Create an Archive:
    You can create a compressed archive (like a tarball) of your configuration files. Run the following command:
   sudo tar -czvf config_backup.tar.gz /etc /home/your_username/.bashrc /home/your_username/.vimrc

Adjust the paths based on what configuration files you want to back up.

Step 2: Backup Installed Packages List

The method to back up the installed package list depends on your Linux distribution.

For Debian-based systems (like Ubuntu):

  1. Backup Installed Packages:
   dpkg --get-selections > package_list.txt
  1. Backup Sources List:
   sudo cp /etc/apt/sources.list /etc/apt/sources.list.backup

For Red Hat-based systems (like Fedora, CentOS):

  1. Backup Installed Packages:
   rpm -qa > package_list.txt
  1. Backup Repositories:
   sudo cp -r /etc/yum.repos.d/ /path/to/backup/repo_backup/

Step 3: Create a Complete Backup Archive

Combine everything into one archive:

tar -czvf full_backup.tar.gz config_backup.tar.gz package_list.txt /etc/apt/sources.list.backup

Step 4: Restore on a New Installation

  1. Transfer the Backup: Copy the full_backup.tar.gz to your new installation.
  2. Extract the Backup:
   tar -xzvf full_backup.tar.gz
  1. Restore Configuration Files:
   sudo tar -xzvf config_backup.tar.gz -C /
  1. Restore Package List: For Debian-based systems:
   sudo dpkg --set-selections < package_list.txt
   sudo apt-get dselect-upgrade

#### For Red Hat-based systems:
You can reinstall packages from the list:

   xargs -a package_list.txt sudo dnf install -y
  1. Restore Sources List (Debian-based):
   sudo cp /etc/apt/sources.list.backup /etc/apt/sources.list
   sudo apt update

Step 5: Finalize and Reboot

After restoring everything, it’s a good idea to reboot your system to ensure all configurations take effect.

Notes:

  • Make sure to review any new configurations or installed packages after the restoration, as dependencies and versions may vary.
  • For user-specific configurations, you may want to back up the entire home directory or specific application directories.

This process should help you smoothly transition to a new Linux installation with your desired configurations and packages!

Chat GPT Prompt : I am in a plan of migrating linux os to a new file system which is xfs or zfs brtfs which on is good

Choosing between XFS, ZFS, and Btrfs depends on your specific needs and use cases. Here’s a breakdown of each file system’s strengths and considerations to help you decide:

XFS

Pros:

  • Performance: Excellent performance, especially for large files and high-performance workloads.
  • Scalability: Designed for scalability, making it suitable for high-capacity storage systems.
  • Mature: A well-established file system with a long history of stability.

Cons:

  • Features: Lacks some advanced features like snapshots and built-in RAID compared to ZFS and Btrfs.
  • Management: Does not have as many management tools as ZFS.

ZFS

Pros:

  • Data Integrity: Strong focus on data integrity with built-in checksumming.
  • Snapshots and Clones: Supports efficient snapshots and clones, allowing for easy backups and recovery.
  • Compression: Offers built-in compression options, which can save space.
  • RAID: Supports various RAID levels natively (ZRAID), enhancing redundancy.

Cons:

  • Memory Usage: Can require more RAM for optimal performance.
  • Complexity: More complex to set up and manage compared to traditional file systems.

Btrfs

Pros:

  • Snapshots and Subvolumes: Supports snapshots and subvolumes, making it flexible for backups and system management.
  • Built-in RAID: Offers support for multiple RAID levels.
  • Compression and Deduplication: Supports on-the-fly compression and deduplication.

Cons:

  • Stability: Still considered less mature than XFS and ZFS; while it has improved significantly, it may not be as stable for all workloads.
  • Performance: Can have variable performance depending on the workload and configuration.

Recommendations

  • For General Use: If you want stability and performance for general workloads, XFS is a great choice.
  • For Data Integrity and Advanced Features: If data integrity, snapshots, and advanced features are critical, ZFS is likely the best option.
  • For Flexibility and Modern Features: If you want modern features like snapshots and subvolumes with some flexibility, consider Btrfs.

Final Thoughts

Evaluate your specific use cases (e.g., data integrity, performance, ease of management) and the resources available on your system (e.g., RAM for ZFS). If possible, testing each file system in a non-production environment can also help you determine which one best meets your needs.

Kanchi-LUG Weekly Discussion 06-10-2024 Summary

✇HariHaran
By: Hariharan
6 October 2024 at 15:17

அக் 6, 2024

Linux OS – Cloning to new harddrive

Dev.to Forbidden recovery procedure Forbidden Your account has been suspended and has limited access. Your ability to post and comment may be limited. For more information, you may send a message to support@dev.to.

Linux Mint LMDE : https://www.linuxmint.com/download_lmde.php

https://forums.tamillinuxcommunity.org/t/topic/2592/1

Kaniyam Event Calendar for Tamilnadu Tech Events : https://calendar.google.com/calendar/render?cid=9286037a22efd277b0551234d5424afe788cbbf7a2740471b1cfeb9d88f98099@group.calendar.google.com

https://forums.tamillinuxcommunity.org

https://chromium.googlesource.com/external/google3/cros_components/+/67d0844c18a163b3261b928fa58c2471ef60f00c

https://forums.linuxmint.com/

https://linuxmint-developer-guide.readthedocs.io/en/latest/technology.html

Collection of News sources were collecting from

https://forums.tamillinuxcommunity.org/t/linux-news-websites/2511

Kanchilug Weekly News Summary Ether pad : https://etherpad.wikimedia.org/p/KanchiLUGWDOct6

https://www.discourse.org/

https://github.com/Ezhil-Language-Foundation/open-tamil/blob/main/tamil/utf8.py

Kanchi-LUG Weekly Discussion 08-09-2024 Summary & My Experiments : )

✇HariHaran
By: Hariharan
14 September 2024 at 19:49

Talk 0:
Topic : MiniDLNA media server.
Name : Syed Jafer

எமது பைத்தான் வகுப்பின் பயிற்றுனர் செய்யது ஜாபர் தன்னுடைய கணினியில் miniDLNA பல்லூடக வழங்கி (media server) நிறுவுதல் குறித்தும் அதன் பயன்பாடுகள் குறித்தும் உரை வழங்கினார்.

அந்த பயன்பாட்டினை என்னுடைய உபுண்டு இயங்குதளத்தில் நிறுவியது குறித்து இப்பதிவில் காணலாம்.

எந்த பயன்பாட்டையும் உபுண்டு இயங்குதளத்தில் நிறுவல் செய்யவேண்டி இயங்குதளத்தினை நிகழ்நிலைப்படுத்தினேன் (updating)

sudo apt update

இயங்குதளத்தினை நிகழ்நிலைப்படுத்திய பிறகு 

sudo apt install minidlna

நிறுவல் நல்லபடியாக முடிந்தது.

இப்பொழுது பல்லுடக வழங்கியைநமக்கு தேவைப்படும் படி கட்டமைத்துகொள்ளும் படிகளை ஒவ்வொன்றாக பார்க்கலாம்.

என்னுடைய கணிணியில் ஒரு பயனறே உள்ளபடியால் அவருக்கு மட்டும் நிறுவலைக் கட்டமைப்பு செய்வோம். பின்னர் பல்லூடக கோப்புகளின் இருப்பிடங்களை கட்டமைப்பு செய்வோம்.

எப்பொழுதும் கணினியில் கட்டமைவை மாற்றும் போது அதனை ஒரு காப்புபிரதி (backup) எடுத்து பயன்படுத்துதல் நன்று.

#media_dir=/var/lib/minidlna
media_dir=A,/home/hariharan/Music
media_dir=V,/home/hariharan/Videos
media_dir=P,/home/hariharan/Pictures

db_dir=/var/cache/minidlna

log_dir=/var/log/minidlna (create folder manually if not created automatically)

friendly_name=UbuntuMediaServer

மேற்கண்ட வரிகளில்

media_dir என்பது பல்லூடக கோப்புகளை வழங்கியில் காண்பிப்பதற்கான கட்டமைவு ஆகும்.

db_dir என்பது கோப்புகளின் பிற விவரங்களை சேமித்துவைக்க வழங்கி பயன்படுத்தும் கோப்புறை

log_dir என்பது வழங்கி பிழைச்செய்திமற்றும் பிற முக்கிய பயன்பாட்டின் நிகழ்வுகளை பதியும் கோப்புறை

friendly_name என்பது நமது வழங்கிக்கு நாம் வழங்கும் பெயர். பிற dlna நெறிமுறை மூலம் இயங்கும் பயன்பாடுகள் நமது வழங்கியை பயன்படுத்தும் போது இந்த பெயரின் கீழ் கோப்புகளை வழங்கும்.

எனது பரிசோதனைகள்

  1. MX Player – Android லிருந்து பல்லூடக வழங்கியை அணுகுதல்.

முடிவு: பல்லுடக வழங்கியை அனுகமுடியவில்லை.

  1. serveo.net பயன்படுத்தி பல்லூடக வழங்கியை அணுகுதல்.

முடிவு: பல்லூடக வழங்கியை அணுகமுடியவில்லை

Kanchi-LUG Weekly Discussion 01-09-2024 Summary

✇HariHaran
By: Hariharan
1 September 2024 at 16:31

Talk-0

Hariharan Umapathi (Myself) : Generating PDF using headless mode with Chromium


https://www.slideshare.net/slideshow/k-lug-weekly-discussion-sep-01-2024-t1-pdf/271473211

Talk-1

Thanga Ayyanar : IRC Bouncer configuration using soju https://soju.im/

Talk-2

Syed Jafer : Using dotenvx for .env file parsing

https://dotenvx.com/

Other Talks :

PHP Application Free Hosting : https://infinityfree.net/

Tamil Auto Generator (விகுதி ஆக்கம்) : https://github.com/KaniyamFoundation/ProjectIdeas/issues/227

Open Source Home Automation : https://www.home-assistant.io/

NGROK Alternative : https://serveo.net/

TO Stop ubuntu Keyring popup : https://askubuntu.com/questions/495957/how-to-disable-the-unlock-your-keyring-popup

rm ~/.local/share/keyrings/login.keyring

(Details Needed) https://lwn.net/Calendar/

Contributors Needed (Python,Django): https://tamilpesu.us/

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