The Linux Desktop Guide

Backups and Recovery Basics

• Backup Strategy for Desktop Users
• What to Back Up First
• Backup Scope Template
• Fast Backup with rsync
• System Snapshots
• Recovery Drill
• Scheduling Backups
• Disaster Recovery Checklist
  • Common Backup Mistakes

Backups are not optional once your Linux system contains work you care about. A good backup plan is simple, repeatable, and tested.

Backup Strategy for Desktop Users

Use the 3-2-1 mindset:

• 3 copies of important data
• 2 different storage types
• 1 copy off-device

A practical setup:

• Primary data in home directory
• External drive backup weekly
• Cloud or remote backup for critical documents

What to Back Up First

• Home folders (Documents, Projects, Photos)
• Browser profile data
• SSH keys and password manager vault exports
• Important config folders like .config

You usually do not need to back up cache directories such as ~/.cache.

Backup Scope Template

Define this once and keep it documented:

• Must backup: personal files, project repos, keys, secrets
• Nice to backup: desktop settings, app profiles
• Do not backup: large regenerable caches and temporary files

Fast Backup with rsync

rsync -avh --delete /home/youruser/Documents /media/backup-drive/Documents

More practical home backup pattern with exclusions:

rsync -avh --delete \
	--exclude='.cache' \
	--exclude='Downloads' \
	/home/youruser/ /media/backup-drive/home-backup/

Run this manually first, then automate after you trust the result.

Warning: --delete removes files on the destination that no longer exist in source.

System Snapshots

Snapshots help with system rollback after bad updates, especially on snapshot-friendly filesystems.

• Use snapshot tools supported by your distro.
• Snapshot before major updates or driver changes.
• Keep only a reasonable number of snapshots.

Snapshots are not a replacement for external backups.

Recovery Drill

A backup is only real after restore is tested.

1. Restore one file to a test location.
2. Restore one folder.
3. Confirm file integrity.
4. Document restore steps.

Example restore command:

rsync -avh /media/backup-drive/home-backup/Documents/ /home/youruser/Documents/

If restoring into an active system, confirm ownership and permissions after restore.

Scheduling Backups

Start manual, then automate with one method:

• crontab for simple schedules
• systemd timers for more robust Linux-native scheduling

Example weekly cron entry:

0 2 * * 0 /usr/local/bin/backup-home.sh

Keep scripts readable and log every run.

Disaster Recovery Checklist

If a disk fails or system becomes unbootable:

1. Stop writing to damaged disks.
2. Boot from live USB.
3. Mount backup destination read-only first.
4. Restore critical files before optional files.
5. Rebuild user environment after data restore.

Common Backup Mistakes

• Keeping backup on same physical disk as source
• Never testing restore
• Backing up too much and never cleaning old sets
• Assuming RAID means backup

RAID improves availability, not historical recovery.