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Diffstat (limited to 'Documentation/user/bootchooser.rst')
| -rw-r--r-- | Documentation/user/bootchooser.rst | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/Documentation/user/bootchooser.rst b/Documentation/user/bootchooser.rst index 1680ea78ed..1a2ce70bb2 100644 --- a/Documentation/user/bootchooser.rst +++ b/Documentation/user/bootchooser.rst @@ -83,7 +83,7 @@ The bootchooser algorithm aborts when all enabled targets (priority > 0) have no remaining attempts left. To prevent ending up in an unbootable system after a number of failed boot -attempts, there is a also a built-in mechanism to reset the counters to their defaults, +attempts, there is also a built-in mechanism to reset the counters to their defaults, controlled by the ``global.bootchooser.reset_attempts`` variable. It holds a list of space-separated flags. Possible values are: @@ -92,6 +92,12 @@ list of space-separated flags. Possible values are: (``$global.system.reset="POR"``) is detected, the ``remaining_attempts`` counters of all enabled targets are reset to their defaults. This means after a power cycle all boot targets will be tried again for the configured number of retries. +- ``reset``: When the bootchooser starts and a generic reset + (``$global.system.reset="RST"``) is detected, the ``remaining_attempts`` + counters of all enabled targets are reset to their defaults. + This means that, if the systems reports a generic restart, the + ``remaining_attempts`` counters of all enabled targets are reset to + their defaults. - ``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. @@ -112,7 +118,9 @@ In case only the booted system itself knows when it is in a good state, it can report this to the bootchooser from Linux userspace using the *barebox-state* tool from the dt-utils_ package.:: - barebox-state -s bootstate.<target>.remaining_attemps <reset-value> + barebox-state [-n <state variable set>] -s [<prefix>.]<target>.remaining_attempts=<reset-value> + barebox-state -n system_state -s bootstate.system1.remaining_attempts=3 + barebox-state -s system1.remaining_attempts=3 If instead the bootchooser can detect a failed boot itself using the :ref:`reset reason <reset_reason>` (WDG), one can mark the boot successful |