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| author | Enrico Jorns <ejo@pengutronix.de> | 2019-02-15 13:53:47 +0100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2019-02-18 14:26:27 +0100 |
| commit | fd51d78b85dc241a6d59c803136973c80108ed36 (patch) | |
| tree | 5bea20d89dc40497b6d781ffc7d1f0b4af8780e7 /Documentation/user/bootchooser.rst | |
| parent | 2b21c973876587dfa012a2ed892c6786cecec09a (diff) | |
| download | barebox-fd51d78b85dc241a6d59c803136973c80108ed36.tar.gz barebox-fd51d78b85dc241a6d59c803136973c80108ed36.tar.xz | |
doc: bootchooser: add details about bootchooser.reset_attempts handling
For understanding and correctly using the algorith it is useful to know
when the values are evaluated.
Signed-off-by: Enrico Jorns <ejo@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'Documentation/user/bootchooser.rst')
| -rw-r--r-- | Documentation/user/bootchooser.rst | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/Documentation/user/bootchooser.rst b/Documentation/user/bootchooser.rst index 00ce896e37..ad809751dd 100644 --- a/Documentation/user/bootchooser.rst +++ b/Documentation/user/bootchooser.rst @@ -88,11 +88,13 @@ controlled by the ``global.bootchooser.reset_attempts`` variable. It holds a list of space-separated flags. Possible values are: - empty: counters will never be reset -- ``power-on``: The ``remaining_attempts`` counters of all enabled boot targets are reset - after a ``power-on`` reset (``$global.system.reset="POR"``). This means after a power - cycle all boot targets will be tried again for the configured number of retries. -- ``all-zero``: The ``remaining_attempts`` counters of all enabled boot targets are - reset when none of them has any ``remaining_attempts`` left. +- ``power-on``: When the bootchooser starts and a power-on reset + (``$global.system.reset="POR"``) is detected, the ``remaining_attempts`` + counters of all enabled targets are reset to their defaults. + This means after a power cycle all boot targets will be tried again for the configured number of retries. +- ``all-zero``: When the bootchooser starts and the ``remaining_attempts`` + counters of all enabled targets are zero, the ``remaining_attempts`` + counters of all enabled targets are reset to their defaults. Marking a Boot as Successful ############################ |