Resize Root Partition Script

This script resizes the root partition on CentOS/Red Hat and Ubuntu/Debian systems. It works by moving existing LVM data to a temporary disk, resizing the root partition, and then moving the LVM data back.

Features

• OS Detection: Automatically detects if the script is run on CentOS/Red Hat or Ubuntu/Debian.
• Root Check: Ensures the script is run with root permissions.
• Readable Functions: Improved variable names and logic for better readability.
• Avoids Redundancies: Removed unnecessary commands and combined actions where possible.
• Input Validation: Ensures correct usage of command-line tools.

Prerequisites

• A temporary disk available to use as an LVM device.
• Root privileges to run the script.

Usage

1. Clone the Repository: git clone https://github.com/your-github-username/resize_root_partition_script.git

2. Navigate to the Script Directory: cd resize_root_partition_script

3. Make the Script Executable: chmod +x resize_root_partition_centos.sh

4. Run the Script: sudo ./resize_root_partition_centos.sh

Script Details

• OS Detection:

  • Checks /etc/redhat-release for Red Hat/CentOS.
  • Checks /etc/lsb-release for Ubuntu/Debian.

• Package Installation:

  • Installs gdisk using yum for Red Hat/CentOS.
  • Installs gdisk using apt-get for Ubuntu/Debian.

• Partitioning and LVM Management:

  • Partitions a new disk for temporary LVM storage.
  • Moves existing LVM data to the new partition.
  • Resizes the root partition to 100GB.
  • Moves LVM data back to the resized root partition.

Example Output

• Detected OS: Detected OS: centos

• Root Partition: Root partition is: /dev/sda1

• Original LVM Partition: Original LVM partition is: /dev/sda2

• New LVM Disk: New LVM disk is: /dev/sdb

• New LVM Partition: New LVM partition is: /dev/sdb1

Contributing

Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.

Author

• Achede_HD

License

This project is licensed under the MIT License - see the LICENSE file for details.

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Feel free to contribute to this project by submitting issues or pull requests. Your feedback and contributions are welcome!