How to Update and Upgrade Your Linux System Print

Regularly updating your Linux VPS ensures you have the latest security patches, software updates, and performance improvements. This guide will show you how to update and upgrade your system using the command line on popular Linux distributions like Ubuntu, Debian, CentOS, and AlmaLinux.

For Ubuntu / Debian

Step 1: Connect to Your VPS via SSH

ssh root@your_server_ip

Replace your_server_ip with your actual VPS IP address.

Step 2: Update Package Lists

This command fetches the latest package lists from the repositories:

apt update

Step 3: Upgrade Installed Packages

This installs the latest versions of currently installed packages:

apt upgrade

You may be prompted to confirm—type Y and press Enter.

Step 4: Full System Upgrade (Optional)

This handles dependency changes and removes outdated packages:

apt full-upgrade

Step 5: Remove Unused Packages

Clean up unnecessary packages:

apt autoremove

For CentOS / AlmaLinux / RHEL

Step 1: Connect to Your VPS via SSH

ssh root@your_server_ip

Step 2: Update All Packages

For CentOS 7 and earlier:

yum update

For CentOS 8, AlmaLinux, or RHEL 8+:

dnf update

Step 3: Confirm When Prompted

If updates are available, confirm with Y when asked.

Check Your Current Version (Optional)

To check your current OS version:

cat /etc/os-release

Best Practices

• Run updates regularly (weekly or as part of server maintenance).

• Reboot the VPS if a kernel or system update requires it:

reboot

• Always back up important data before major upgrades.

Conclusion

Keeping your Linux system up to date is a key part of server security and stability. If you’re unsure about applying updates or encounter any errors, feel free to contact Hosteons Support for help.