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System Administration · Storage & Filesystems · Security

Migrate a Linux root filesystem to a larger disk with minimal downtime

Copy an Ubuntu root filesystem to a larger ext4 disk, preserve Linux metadata, rebuild UUID-based boot artifacts, perform a controlled cutover, and retain the original disk as a tested rollback.
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danger150 minadvanced11 stepsUbuntu Server

System Administration · Security

Create remote, versioned backups with rsync and SSH

Use a dedicated SSH identity, dry-run transfers, build hard-linked snapshots, enforce retention, and test restore.
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caution55 minadvanced8 stepsrsync