RAUC(1)

NAME
rauc - safe and secure updating

SYNOPSIS

rauc [OPTIONS...] bundle INPUTDIR BUNDLE

rauc [OPTIONS...] resign INBUNDLE OUTBUNDLE

rauc [OPTIONS...] extract BUNDLE OUTPUTDIR

rauc [OPTIONS...] extract-signature BUNDLE OUTPUTSIG

rauc [OPTIONS...] convert INBUNDLE OUTBUNDLE

rauc [OPTIONS...] encrypt INBUNDLE OUTBUNDLE

rauc [OPTIONS...] install BUNDLE

rauc [OPTIONS...] info BUNDLE

rauc [OPTIONS...] mount BUNDLE

rauc [OPTIONS...] status [SLOTNAME | mark-{good,bad,active} [booted|other|SLOTNAME]]

rauc [OPTIONS...] write-slot SLOTNAME IMAGEFILE

DESCRIPTION

RAUC is a lightweight update client that runs on an Embedded Linux device and reliably controls the procedure of updating the device with a new firmware.

RAUC is also the tool on the host system that is used to create, inspect and modify update files ("bundles") for the device.

This manual page documents briefly the rauc command line utility.

It was written for the Debian GNU/Linux distribution to satisfy the packaging requirements. Thus it should only serve as a summary, reading the comprehensive online manual (https://rauc.readthedocs.io/) is recommended.

OPTIONS

The following general options can be used with most commands, however not all combinations make sense.

-c FILENAME, --conf=FILENAME
    use the given config file instead of the one at the compiled-in default path

-C SECTION:KEY=VALUE, --confopt=SECTION:KEY=VALUE
    Override parameters from the config file with the specified configuration settings. If specified parameter is not present in the config file it will still be set by this option.

--keyring=PEMFILE
    use specific keyring file

--mount=PATH
    mount prefix (/mnt/rauc by default)

-d, --debug
    enable debug output

--version
    display version

-h, --help
    print usage

COMMANDS

bundle INPUTDIR BUNDLE Create a bundle from a content directory.

Options:

--cert=PEMFILE|PKCS11-URL
    use given certificate file or the certificate referenced by the given PKCS#11 URL

--key=PEMFILE|PKCS11-URL
    use given private key file or the key referenced by the given PKCS#11 URL

--intermediate=PEMFILE|PKCS11-URL
    intermediate CA file or the certificate referenced by the given PKCS#11 URL

--signing-keyring=PEMFILE
    verification keyring file

--mksquashfs-args=ARGS
    mksquashfs extra args

    resign INBUNDLE OUTBUNDLE Resign an already signed bundle.

    Options:

--append
    append instead of replace signature

--cert=PEMFILE|PKCS11-URL
    use given certificate file or the certificate referenced by the given PKCS#11 URL

--key=PEMFILE|PKCS11-URL
    use given private key file or the key referenced by the given PKCS#11 URL

--intermediate=PEMFILE|PKCS11-URL
    intermediate CA file or the certificate referenced by the given PKCS#11 URL

--no-verify
    disable bundle verification

--no-check-time
    don't check validity period of certificates against current time

--signing-keyring=PEMFILE
    verification keyring file

    extract BUNDLE OUTPUTDIR Extract the bundle content to a directory.

    Options:

--key=PEMFILE|PKCS11-URL
    use given decryption key file or the decryption key referenced by the given PKCS#11 URL

--trust-environment
    trust environment and skip bundle access checks

    extract-signature BUNDLE OUTPUTSIG Extract the bundle signature.

    Options:

--key=PEMFILE|PKCS11-URL
    use given decryption key file or the decryption key referenced by the given PKCS#11 URL

--trust-environment
    trust environment and skip bundle access checks

    convert INBUNDLE OUTBUNDLE Convert an existing bundle to casync index bundle and store.

    Options:

--cert=PEMFILE|PKCS11-URL
    use given certificate file or the certificate referenced by the given PKCS#11 URL

--key=PEMFILE|PKCS11-URL
    use given private key file or the key referenced by the given PKCS#11 URL

--intermediate=PEMFILE|PKCS11-URL
    intermediate CA file or the certificate referenced by the given PKCS#11 URL

--trust-environment
    trust environment and skip bundle access checks

--no-verify
    disable bundle verification

--signing-keyring=PEMFILE
    verification keyring file

--mksquashfs-args=ARGS
    mksquashfs extra args

--casync-args=ARGS
    casync extra args

--ignore-image=SLOTCLASS
    ignore image during conversion

    encrypt INBUNDLE OUTBUNDLE Encrypt a crypt bundle.

    Options:

--to PEMFILE
    recipient cert(s)

    install BUNDLE Install a bundle.

    Options:

--ignore-compatible
    disable compatible check

--ignore-version-limit=
    disable version check

--transaction-id=UUID
    custom transaction ID

--require-manifest-hash=HASH
    require a specific manifest hash

--progress
    show progress bar

--tls-cert=PEMFILE|PKCS11-URL
    TLS client certificate file or PKCS#11 URL

--tls-key=PEMFILE|PKCS11-URL
    TLS client key file or PKCS#11 URL

--tls-ca=PEMFILE
    TLS CA file

--tls-no-verify
    do not verify TLS server certificate

-H, --http-header='HEADER: VALUE'
    HTTP request header (multiple uses supported)

--handler-args=ARGS
    extra arguments for full custom handler

--override-boot-slot=BOOTNAME
    overrides auto-detection of booted slot

    info BUNDLE Print bundle info.

    Options:

--no-verify
    disable bundle verification

--no-check-time
    don't check validity period of certificates against current time

--key=PEMFILE|PKCS11-URL
    use given decryption key file or the decryption key referenced by the given PKCS#11 URL

--output-format=[readable|shell|json|json-pretty|json-2]
    select output format

    The json-2 output format matches the structure of the InspectBundle D-Bus API and should be used instead of json or json-pretty.

--dump-cert
    dump certificate

--dump-recipients
    dump recipients

    mount BUNDLE Mount a bundle for development purposes to the bundle directory in RAUC's mount prefix. It must be unmounted manually by the user.

    status [SLOTNAME | mark-{good,bad,active} [booted|other|SLOTNAME]] Without further subcommand, it simply shows the system status or status of a specific slot.

    The subcommands mark-good and mark-bad can be used to set the state of a slot explicitly. These subcommands usually operate on the currently booted slot if not specified per additional parameter.

    The subcommand mark-active allows one to manually switch to a different slot. Here too, the desired slot can be given per parameter, otherwise the currently booted one is used.

    Options:

--detailed
    show more status details

--output-format=[readable|shell|json|json-pretty]
    select output format

--override-boot-slot=BOOTNAME
    overrides auto-detection of booted slot

    write-slot SLOTNAME IMAGEFILE Manually write image to slot (using slot update handler). This bypasses all other update logic and is for development or special use only!

    Options:

--image-type
    Select explicit image type to use.

ENVIRONMENT

RAUC_KEY_PASSPHRASE
    Passphrase to use for accessing key files (signing only)

RAUC_PKCS11_MODULE
    Library filename for PKCS#11 module (signing only)

RAUC_PKCS11_PIN
    PIN to use for accessing PKCS#11 keys (signing only)

FILES

/etc/rauc/system.conf, /run/rauc/system.conf, /usr/lib/rauc/system.conf

The system configuration file is the central configuration in RAUC that abstracts the loosely coupled storage setup, partitioning and boot strategy of your board to a coherent redundancy setup world view for RAUC.

RAUC configuration files are loaded from one of the listed directories in order of priority, only the first file found is used: /etc/rauc/, /run/rauc/, /usr/lib/rauc/.

The system.conf is expected to describe the system RAUC runs on in a way that all relevant information for performing updates and making decisions are given.

Similar to other configuration files used by RAUC, the system configuration uses a key-value syntax (similar to those known from .ini files).

AUTHORS

rauc is developed by Jan Luebbe, Enrico Joerns, Juergen Borleis and contributors.

This manual page was written by Michael Heimpold <<mhei@heimpold.de>>, for the Debian GNU/Linux system (but may be used by others).

SEE ALSO

casync(1), mksquashfs(1), unsquashfs(1)

Copyright
2016-2026, Jan Luebbe, Enrico Joerns, the RAUC contributors