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Diffstat (limited to 'doc/mkeficapsule.1')
| -rw-r--r-- | doc/mkeficapsule.1 | 21 |
1 files changed, 11 insertions, 10 deletions
diff --git a/doc/mkeficapsule.1 b/doc/mkeficapsule.1 index 6fb2dd0810d..1ca245a10f8 100644 --- a/doc/mkeficapsule.1 +++ b/doc/mkeficapsule.1 @@ -11,22 +11,23 @@ mkeficapsule \- Generate EFI capsule file for U-Boot .RI [ options ] " " [ image-blob ] " " capsule-file .SH "DESCRIPTION" +The .B mkeficapsule -command is used to create an EFI capsule file for use with the U-Boot -EFI capsule update. -A capsule file may contain various type of firmware blobs which -are to be applied to the system and must be placed in the specific -directory on the UEFI system partition. -An update will be automatically executed at next reboot. +command is used to create an EFI capsule file to be used by U-Boot for firmware +updates. +A capsule file may contain various types of firmware blobs which are to be +applied to the system. +If a capsule file is placed in the /EFI/CapusuleUpdate directory of the EFI +system partition, U-Boot will try to execute the update at the next reboot. Optionally, a capsule file can be signed with a given private key. In this case, the update will be authenticated by verifying the signature before applying. -Additionally, an empty capsule file can be generated for acceptance or -rejection of firmware images by a governing component like an Operating -System. The empty capsules do not require an image-blob input file. - +Additionally, an empty capsule file can be generated to indicate the acceptance +or rejection of firmware images by a governing component like an operating +system. +Empty capsules do not require an image-blob input file. .B mkeficapsule takes any type of image files when generating non empty capsules, including: |