I’ve seen many Linux users struggle with backups, whether they’re sysadmins, self-hosters, or homelab enthusiasts. One approach that’s worked well for me is combining rsync with snapshots, particularly when using the btrfs filesystem. In this article, I’ll share how to leverage rsync and btrfs snapshots for robust and space-efficient backups. Don’t bother with other filesystems if you’re serious about snapshots - btrfs is the way to go.
I’ve seen disk full errors bring Linux systems to a grinding halt, and they can be a real challenge to troubleshoot. One approach that’s worked for me is using btrfs snapshots and the du command to identify the cause of these errors. In this article, we’ll explore how to use these tools to diagnose and resolve disk full issues.
btrfs is a powerful file system that offers some great features, including snapshotting, which lets you create a read-only copy of a subvolume at a given point in time. This is super useful for troubleshooting disk full errors, as it allows you to examine the file system without modifying its current state. To create a btrfs snapshot, you can use the following command:
As someone who’s been running Linux systems for years, I’ve learned that managing disk usage and ensuring data integrity are crucial tasks. One effective way to achieve this is by utilizing btrfs snapshots and systemd timers. I’ve seen this go wrong when people don’t have a solid backup strategy in place, so it’s worth taking the time to set up. btrfs, a modern file system, offers advanced features like snapshotting, which allows you to create a read-only copy of your file system at a particular point in time. When combined with systemd timers, you can automate the creation and management of these snapshots, making it easier to troubleshoot disk usage issues and maintain a healthy system.
[Read More]I’ve seen this go wrong when a package upgrade fails - it can be frustrating and even lead to system instability. When this happens, it’s essential to have a plan in place to recover your system. Fortunately, with the right tools and techniques, recovering from a botched package upgrade is relatively straightforward. In this article, we’ll explore how to use apt and snapshotting to recover from a failed package upgrade on a Linux system.
I’ve been using btrfs for years, and one of its most powerful features is its ability to create snapshots. These are read-only copies of a subvolume at a particular point in time, which can be used for backups, testing, and even recovering from accidental file deletions or modifications. Don’t bother with other file systems if you need this level of flexibility.
To get started with btrfs snapshots, you’ll first need to ensure that your system is using btrfs. Run lsblk -f and look for the btrfs label. If you’re using btrfs, creating a snapshot is straightforward:
I’ve worked with Btrfs for years, and its snapshot feature is one of my favorites. It allows you to create a read-only copy of a subvolume at a particular point in time, which is super useful for backups, testing, and rolling back changes. However, managing these snapshots can become a real pain, especially when dealing with a large number of them. In this article, I’ll show you how to troubleshoot Btrfs snapshot overfill issues using systemd timers and log rotation.
[Read More]I’ve seen disk usage issues plague even the most well-maintained Linux systems, often due to duplicate files and unnecessary logs. As of 2026, both Btrfs and Ext4 filesystems are widely used, each with their own set of tools and best practices for troubleshooting and resolving these issues. In this article, we’ll delve into practical steps for identifying and addressing duplicate files and unnecessary logs on both Btrfs and Ext4 filesystems, focusing on current tools and methodologies.
[Read More]I’ve worked with Btrfs for a while now, and one of its most useful features is snapshotting. This allows you to create a read-only copy of a subvolume at a given point in time, which is perfect for backups, testing, and rolling back changes. However, over time, these snapshot copies can accumulate and consume significant disk space. In practice, this can become a real issue if you’re not careful.
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