fwupd.conf(5) Configuration File Format fwupd.conf(5)
NAME
fwupd.conf - configuration file for the fwupd daemon.
SYNOPSIS
The /etc/fwupd/fwupd.conf file is the main configuration file for the
fwupd daemon. The complete description of the file format and possible
parameters are documented here for reference purposes.
FILE FORMAT
The file consists of a multiple sections with optional parameters. Pa-
rameters are of the form:
[section]
key = value
The file is line-based, each newline-terminated line represents either
a comment, a section name or a parameter.
Section and parameter names are case sensitive.
Only the first equals sign in a parameter is significant. Whitespace
before or after the first equals sign is discarded as is leading and
trailing whitespace in a parameter value. Internal whitespace within a
parameter value is retained.
Any line beginning with a hash (#) character is ignored, as are lines
containing only whitespace.
The values following the equals sign in parameters are all either a
string (no quotes needed), unsigned integers, or a boolean, which may
be given as true or false. Case is not significant in boolean values,
but is preserved in string values.
DAEMON PARAMETERS
The [fwupd] section can contain the following parameters:
DisabledDevices=
Allow blocking specific devices by their GUID, using semicolons as
delimiter.
DisabledPlugins=
Allow blocking specific plugins by name. Use fwupdmgr get-plugins
to get the list of plugins.
ArchiveSizeMax=
Maximum archive size that can be loaded in Mb, with 25% of the total
system memory as the default.
IdleTimeout=300
Idle time in seconds to shut down the daemon, where a value of 0
specifies “never”.
NOTE: some plugins might inhibit the auto-shutdown, for instance
thunderbolt.
IdleInhibitStartupThreshold=500
If the daemon takes more than this time to startup (in milliseconds)
then inhibit the idle shutdown timer. A value of 0 specifies “never”.
VerboseDomains=
Comma separated list of domains to log in verbose mode. If unset,
no domains are set to verbose. If set to “*”, all domains are ver-
bose, which is the same as running the daemon with --verbose --verbose.
UpdateMotd=true
Update the message of the day (MOTD) on device and metadata changes.
EnumerateAllDevices=false
For some plugins, enumerate only devices supported by metadata.
ApprovedFirmware=
A list of firmware checksums that has been approved by the site admin
If unset, all firmware is approved.
BlockedFirmware=
Allow blocking specific devices by their cabinet checksum, either
SHA-1 or SHA-256.
UriSchemes=file;https;http;ipfs
Allowed URI schemes in the preference order; failed downloads from
the first scheme will be retried with the next in order until no choic-
es remain.
IgnorePower=false
Ignore power levels of devices when running updates.
IgnoreRequirements=false
Ignore some device requirements, for instance removing the generic
GUID requirement of a CHID, child, parent or sibling. This is not
recommended for production systems, although it may be useful for
firmware development.
IgnoreEfivarsFreeSpace=false
Ignore the efivars free space requirement for db, dbx, KEK and PK up-
dates. This may be required on Linux kernels older than 6.4, or
where the hardware does not support UEFI RT->QueryVariableInfo.
OnlyTrustPostQuantumSignatures=false
Only trust post-quantum cryptographic signatures. This is only
recommended when you are sure the firmware contains a valid PQ signa-
ture.
OnlyTrusted=true
Only support installing firmware signed with a trusted key. Do not
set this to false on a production or trusted system.
ShowDevicePrivate=true
Show data such as device serial numbers which some users may consider
private.
TrustedUids=
UIDs matching these values that call the D-Bus interface should
marked as trusted.
HostBkc=
Comma separated list of best known configuration IDs to be used when
using fwupdmgr sync. This can downgrade firmware to factory versions
or upgrade firmware to a supported config level. e.g. vendor-facto-
ry-2021q1,mycompany-2023
ReleaseDedupe=true
Deduplicate duplicate releases by the archive checksum are available
from more than one source.
ReleasePriority=local
When the same version release is available from more than one source
this option can be used to either prefer the local version (avoiding
a potentially expensive download) or to prefer the remote version
(which may have updated metadata such as release notes).
The possible options are local or remote or empty to not make any ad-
justment to the policy, relying on the OrderAfter and OrderBefore
sections in the remote.
EspLocation=
Set the preferred location used for the EFI system partition (ESP)
path. This is typically used if UDisks was not able to automatically
identify the location for any reason.
RequireImmutableEnumeration=false
Don't allow fwupd plugins to directly interact with devices during
probe or setup stages. The kernel should provide all device informa-
tion in sysfs files or udev properties. This will block some plugins
from working.
Manufacturer=
ProductName=
ProductSku=
Family=
EnclosureKind=
BaseboardProduct=
BaseboardManufacturer=
Override values for SMBIOS or Device Tree data on the local system.
These are only required when the SMBIOS or Device Tree data is invalid,
missing, or to simulate running on another system. Empty values
should be used to populate blank entries or add values to populate spe-
cific entries.
TrustedReports=VendorId=$OEM
Vendor reports matching these expressions will have releases marked
as trusted-report. Each *OR* section is delimited by a ; and each
*AND* section delimited by &, e.g.
• DistroId=chromeos
Any report uploaded from ChromeOS is trusted.
• DistroId=chromeos&RemoteId=lvfs
Any report found in the lvfs remote uploaded from a ChromeOS machine
is trusted.
• DistroId=fedora&VendorId=19
Any report uploaded from Fedora 19 is trusted.
• DistroId=fedora&VendorId=$OEM
Any report uploaded from Fedora by the hardware OEM is trusted.
• DistroId=fedora;DistroId=rhel&DistroVersion=9
Any report uploaded from Fedora (any version) or from RHEL 9 is
trusted.
NOTE: a VendorId of $OEM represents the OEM vendor ID of the vendor
that owns the firmware, for example, where Lenovo QA has generated a
signed report for a Lenovo laptop.
There are also three os-release values available, $ID, $VERSION_ID
and $VARIANT_ID, which allow expressions like:
• DistroId=$ID
• DistroId=$ID,DistroVersion=$VERSION_ID
• Flags=is-upgrade,from-oem
Any flags listed here must all be matched by the report.
P2pPolicy=metadata
This tells the daemon what peer-to-peer policy to use. For instance,
using Passim, an optional local caching service. Using peer-to-peer
data might reduce the amount of bandwidth used on your network con-
siderably.
There are three possible values:
• nothing: Do not publish any files
• metadata: Only publish shared metadata that is common to each ma-
chine.
• firmware: Only publish firmware archives after the next reboot of the
machine.
At some point in the future fwupd will change the default to metada-
ta,firmware.
TestDevices=false
Create virtual test devices and remote for validating daemon flows.
This is only intended for CI testing and development purposes.
UEFI_CAPSULE PARAMETERS
The [uefi_capsule] section can contain the following parameters:
EnableGrubChainLoad=false
Configure GRUB to launch fwupdx64.efi instead of using other methods
such as NVRAM or Capsule-On-Disk.
DisableShimForSecureBoot=false
The shim loader is required to chainload the fwupd EFI binary unless
the fwupd.efi file has been self-signed manually.
RequireESPFreeSpace=0
Amount of free space required on the ESP, for example using 32 for
32Mb. By default this is dynamically set to at least twice the size
of the payload.
DisableCapsuleUpdateOnDisk=false
Allow ignoring the CapsuleOnDisk support advertised by the firmware.
EnableEfiDebugging=false
Enable the low-level debugging of fwupdx64.efi to the FWUPDATE_DE-
BUG_LOG EFI variable.
NOTE: enabling this option is going to fill up the NVRAM store much
more quickly and should only be enabled when debugging an issue with
the EFI binary.
This value also has no affect when using Capsule-on-Disk as the EFI
helper binary is not being used.
RebootCleanup=true
Delete any capsule files copy to the ESP, and remove any EFI vari-
ables set for the update.
NOTE: disabling this option is only required when debugging the flash
process and normal users should not need to change this setting.
ScreenWidth=0
Override the screen width in pixels of the EFI framebuffer as used by
the UX capsule.
ScreenHeight=0
Override the screen height in pixels of the EFI framebuffer as used
by the UX capsule.
MSR PARAMETERS
The [msr] section can contain the following parameter:
MinimumSmeKernelVersion=5.18.0
Minimum kernel version to allow probing for sme flag.
This only needs to be modified by enterprise kernels that have cherry
picked the feature into a kernel with an old version number.
REDFISH PARAMETERS
The [redfish] section can contain the following parameters:
Uri=
The URI to the Redfish service in the format scheme://ip:port for in-
stance https://192.168.0.133:443
Username=
The username to use when connecting to the Redfish service.
Password=
The password to use when connecting to the Redfish service.
CACheck=false
Whether to verify the server certificate or not. This is turned off
by default. BMCs using self-signed certificates will not work unless
the plugin does not verify it against the system CAs.
IpmiDisableCreateUser=false
Do not use IPMI KCS to create an initial user account if no SMBIOS
data. Setting this to true prevents creating user accounts on the
BMC automatically.
ManagerResetTimeout=1800
Amount of time in seconds to wait for a BMC restart.
THUNDERBOLT PARAMETERS
The [thunderbolt] section can contain the following parameters:
MinimumKernelVersion=4.13.0
Minimum kernel version to allow use of this plugin.
This only needs to be modified by enterprise kernels that have cherry
picked the feature into a kernel with an old version number.
DelayedActivation=false
Forces delaying activation until shutdown/logout/reboot.
DELL_KESTREL PARAMETERS
The [dell_kestrel] section can contain the following parameters:
UpdateOnDisconnect=
Delaying firmware activation until the dock cable is unplugged.
TEST PARAMETERS
The [test] section can contain the following parameters:
AnotherWriteRequired=
Do two passes of the write function.
CompositeChild=
If the device should have a child device.
DecompressDelay=
Delay in milliseconds to use when decompressing the test device.
NeedsActivation=
If the device needs activating before deploying the update.
NeedsReboot=
If the device needs a reboot before deploying the update.
RegistrationSupported=
If the device should register with other plugins.
RequestDelay=
Delay in milliseconds to use when requesting user input from the us-
er.
RequestSupported=
If the device interactive request is supported.
VerifyDelay=
Delay in milliseconds to use when verifying the test device.
WriteDelay=
Delay in milliseconds to use when writing the test device.
WriteSupported=
If the device write is supported. If unsupported the device write
will not start.
NOTES
/etc/fwupd/fwupd.conf may contain either hardcoded or autogenerated
credentials and must only be readable by the user that is running the
fwupd process, which is typically root.
SEE ALSO
<fwupdmgr(1)> <fwupd-remotes.d(5)>
2.0.20 fwupd.conf(5)
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