Learn, Solve & Master Python, Linux, SQL, ML & DevOps
🛠️ Linux Solutions
Quick and practical troubleshooting guides for Linux commands, services, networking, LVM, permissions, and more.
Extend an LV Using Free Space from the Volume Group (Without Downtime)
Extend an existing LV using the unused free space already available inside the volume group, without adding a new disk and without system downtime.
Shaik Mohammed Faruk
January 5, 2026
Create LVM Partition Using fdisk or parted (Step-by-Step Guide)
Using fdisk and parted to Create LVM Partitions (When Not Using a Whole Disk)
Shaik Mohammed Faruk
January 3, 2026
Reduce One LVM Partition and Increase Another Safely in Linux
Safely shrink one LVM partition and reallocate the freed space to another logical volume in the same volume group.
Shaik Mohammed Faruk
January 4, 2026
Fix “Device Is Busy” Error When Unmounting a Filesystem in Linux
Learn how to fix the “device is busy” error when unmounting a filesystem in Linux using lsof and fuser, and safely release active processes without
Shaik Mohammed Faruk
December 13, 2025
How to Add a User to Sudoers Safely in Linux (Without Breaking the sudoers File)
Learn the safe and recommended ways to grant sudo privileges to a Linux user using visudo or the wheel group, without risking sudoers file corruption
Shaik Mohammed Faruk
December 13, 2025
Mount an ISO File in Linux and Create a Local Package Repository
Learn how to mount an ISO file in Linux and configure it as a local package repository for offline systems, secure environments, and servers without
Shaik Mohammed Faruk
December 13, 2025