---
name: "chkboot"
section: "8"
platform: "linux"
package: "chkboot"
version: "1.3-8.2"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/chkboot"
---

# chkboot(8)

checks for unwanted modification on unencrypted /boot partition

## NAME

chkboot - checks for unwanted modification on unencrypted /boot partition

## SYNOPSIS

**chkboot** \[OPTIONS\]

## DESCRIPTION

Checks for any modification to your boot files since last run.

- **--update, -u**

  Mark changes as valid. Next run of **chkboot** will not warn about differences.

- **--help, -h**

  Show this help message and exit.

**chkboot** runs at system startup to check for boot files modifications. User will be warn upon login if any are found.

Kernel upgrade are automatically marked as valid.

Configurations, such as boot partition, can be edited in:

**/etc/default/chkboot**

## EXAMPLES

Acknowledge a detected changed after **chkboot** have displayed a warning:

**chkboot**

Clear valid modifications made by users:

**chkboot -u**

## SEE ALSO

- •

  **man chkboot-check** and **man chkboot-desktopalert**

## BUGS

- •

  GPT partitions are not supported. As chkboot will continue to work, it **will** **not report changes in GPT headers** (only protective MBR).

## AUTHOR

Ju \<ju@heisec.de\>, Giancarlo Razzolini \<grazzolini@gmail.com\>, Chris Warner \<inhies@gmail.com\> and Kevin MacMartin \<prurigro@gmail.com\>

## COPYRIGHT

GPL-2