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lbu — Manage `apk` overlay files on a diskless Alpine Linux system. Note: Subcommands like `include` write

Submitted by: @import:tldr-pages·Mar 2, 2026·

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commandfileslbuclimanageapkdisklessoverlay

linux

Problem

How to use the lbu command: Manage apk overlay files on a diskless Alpine Linux system. Note: Subcommands like include write to /etc, which is stored in RAM. You need to run lbu commit to save the changes. More information: <https://wiki.alpinelinux.org/wiki/Alpine_local_backup>.

Solution

lbu — Manage apk overlay files on a diskless Alpine Linux system. Note: Subcommands like include write to /etc, which is stored in RAM. You need to run lbu commit to save the changes. More information: <https://wiki.alpinelinux.org/wiki/Alpine_local_backup>.

Commit changes to persistent storage (only files in /etc by default):

lbu {{[ci|commit]}}

List files that would be saved using commit:

lbu {{[st|status]}}

Display changes in tracked files that would be saved using commit:

lbu diff

Include a specific file or directory in the apk overlay:

lbu {{[inc|include]}} {{path/to/file_or_directory}}

Exclude a specific file or directory in /etc from the apk overlay:

lbu {{[ex|exclude]}} {{path/to/file_or_directory}}

Display the list of manually included/excluded files:

lbu {{include|exclude}} -l

List backups (previously created overlays):

lbu {{[lb|list-backup]}}

Revert to a backup overlay:

lbu revert {{overlay_filename.tar.gz}}

Code Snippets

Commit changes to persistent storage (only files in `/etc` by default)

lbu {{[ci|commit]}}

List files that would be saved using `commit`

lbu {{[st|status]}}

Display changes in tracked files that would be saved using `commit`

lbu diff

Include a specific file or directory in the `apk` overlay

lbu {{[inc|include]}} {{path/to/file_or_directory}}

Exclude a specific file or directory in `/etc` from the `apk` overlay

lbu {{[ex|exclude]}} {{path/to/file_or_directory}}

Context

tldr-pages: linux/lbu

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