summaryrefslogtreecommitdiffstats
path: root/Documentation/ABI/testing/sysfs-class-firmware-attributes
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation/ABI/testing/sysfs-class-firmware-attributes')
-rw-r--r--Documentation/ABI/testing/sysfs-class-firmware-attributes48
1 files changed, 26 insertions, 22 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-firmware-attributes b/Documentation/ABI/testing/sysfs-class-firmware-attributes
index 05820365f1ec..4cdba3477176 100644
--- a/Documentation/ABI/testing/sysfs-class-firmware-attributes
+++ b/Documentation/ABI/testing/sysfs-class-firmware-attributes
@@ -116,7 +116,7 @@ Description:
<value>[ForceIf:<attribute>=<value>]
<value>[ForceIfNot:<attribute>=<value>]
- For example:
+ For example::
LegacyOrom/dell_value_modifier has value:
Disabled[ForceIf:SecureBoot=Enabled]
@@ -212,7 +212,7 @@ Description:
the next boot.
Lenovo specific class extensions
- ------------------------------
+ --------------------------------
On Lenovo systems the following additional settings are available:
@@ -246,9 +246,7 @@ Description:
that is being referenced (e.g hdd0, hdd1 etc)
This attribute defaults to device 0.
- certificate:
- signature:
- save_signature:
+ certificate, signature, save_signature:
These attributes are used for certificate based authentication. This is
used in conjunction with a signing server as an alternative to password
based authentication.
@@ -257,22 +255,27 @@ Description:
The attributes can be displayed to check the stored value.
Some usage examples:
- Installing a certificate to enable feature:
- echo <supervisor password > authentication/Admin/current_password
- echo <signed certificate> > authentication/Admin/certificate
- Updating the installed certificate:
- echo <signature> > authentication/Admin/signature
- echo <signed certificate> > authentication/Admin/certificate
+ Installing a certificate to enable feature::
+
+ echo "supervisor password" > authentication/Admin/current_password
+ echo "signed certificate" > authentication/Admin/certificate
+
+ Updating the installed certificate::
+
+ echo "signature" > authentication/Admin/signature
+ echo "signed certificate" > authentication/Admin/certificate
- Removing the installed certificate:
- echo <signature> > authentication/Admin/signature
- echo '' > authentication/Admin/certificate
+ Removing the installed certificate::
- Changing a BIOS setting:
- echo <signature> > authentication/Admin/signature
- echo <save signature> > authentication/Admin/save_signature
- echo Enable > attribute/PasswordBeep/current_value
+ echo "signature" > authentication/Admin/signature
+ echo "" > authentication/Admin/certificate
+
+ Changing a BIOS setting::
+
+ echo "signature" > authentication/Admin/signature
+ echo "save signature" > authentication/Admin/save_signature
+ echo Enable > attribute/PasswordBeep/current_value
You cannot enable certificate authentication if a supervisor password
has not been set.
@@ -288,9 +291,10 @@ Description:
certificate_to_password:
Write only attribute used to switch from certificate based authentication
back to password based.
- Usage:
- echo <signature> > authentication/Admin/signature
- echo <password> > authentication/Admin/certificate_to_password
+ Usage::
+
+ echo "signature" > authentication/Admin/signature
+ echo "password" > authentication/Admin/certificate_to_password
What: /sys/class/firmware-attributes/*/attributes/pending_reboot
@@ -345,7 +349,7 @@ Description:
# echo "factory" > /sys/class/firmware-attributes/*/device/attributes/reset_bios
# cat /sys/class/firmware-attributes/*/device/attributes/reset_bios
- # builtinsafe lastknowngood [factory] custom
+ builtinsafe lastknowngood [factory] custom
Note that any changes to this attribute requires a reboot
for changes to take effect.