lbu
manages APK overlay files on diskless Alpine Linux systems
TLDR
Commit changes to persistent storage
$ lbu commit
List files that would be saved$ lbu status
Display changes in tracked files$ lbu diff
Include a file or directory in overlay$ lbu include [path/to/file_or_directory]
Exclude a file from overlay$ lbu exclude [path/to/file_or_directory]
List manually included/excluded files$ lbu include -l
List backups (previous overlays)$ lbu list-backup
Revert to a backup overlay$ lbu revert [overlay_filename.tar.gz]
SYNOPSIS
lbu command [arguments]
DESCRIPTION
lbu (Local Backup Utility) manages APK overlay files on diskless Alpine Linux systems. In diskless mode, the root filesystem runs from RAM, and lbu saves configuration changes to persistent storage.
By default, only /etc is included in the overlay. Other files can be manually included. Changes are not persistent until committed with lbu commit.
PARAMETERS
ci, commit
Save changes to persistent storagest, status
List files that would be committeddiff
Show changes in tracked filesinc, include PATH
Add file/directory to overlayex, exclude PATH
Remove file/directory from overlaylb, list-backup
List available backupsrevert FILE
Restore a backup overlay
CAVEATS
Specific to Alpine Linux diskless installations. Changes in RAM are lost on reboot if not committed. Overlay storage must be properly configured.
HISTORY
lbu is part of Alpine Linux's approach to running diskless systems, allowing customizations to be preserved across reboots while keeping the base system read-only.
SEE ALSO
apk(1), setup-alpine(8)