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* doc: bootchooser: add retry handling to algorithm descriptionEnrico Jorns2019-02-181-0/+5
| | | | | Signed-off-by: Enrico Jorns <ejo@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* doc: bootchooser: add details about bootchooser.reset_attempts handlingEnrico Jorns2019-02-181-5/+7
| | | | | | | | 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>
* doc: bootchooser: be more explicit about when the bootchooser terminatesEnrico Jorns2019-02-181-0/+3
| | | | | Signed-off-by: Enrico Jorns <ejo@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* doc: bootchooser: note how to actually start the bootchooserEnrico Jorns2019-02-181-0/+11
| | | | | Signed-off-by: Enrico Jorns <ejo@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* doc: bootchooser: be more explicit about attempts reset on successful bootEnrico Jorns2019-02-181-9/+32
| | | | | | | | | From the current description of how the bootchooser algorithm works it is not that easy to figure out how to actually use it in a full (redundancy) boot chain. Signed-off-by: Enrico Jorns <ejo@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* doc: bootchooser: be more explicit what bootchooser.state_prefix is forEnrico Jorns2019-02-181-2/+3
| | | | | Signed-off-by: Enrico Jorns <ejo@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* doc: bootchooser: explicitly note configuration vs. storage backendEnrico Jorns2019-02-181-0/+5
| | | | | | | It is quite confusing for some users sometimes where to set what. Signed-off-by: Enrico Jorns <ejo@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* doc: bootchooser: fix typos etc.Enrico Jorns2019-02-181-5/+5
| | | | | Signed-off-by: Enrico Jorns <ejo@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Documentation: use https for Pengutronix servicesUwe Kleine-König2018-06-131-1/+1
| | | | | | | | Also adapt the links to git.pengutronix.de to use the cgit URLs instead the old gitweb ones. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Documentation: Bootchooser: fix typoBastian Stender2018-01-221-1/+1
| | | | | Signed-off-by: Bastian Stender <bst@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* docs: rework and extend the 'state' and 'bootchooser' documentationJuergen Borleis2017-09-061-137/+356
| | | | | | | | Many links between sections and examples were added to give the developer the help to get it work. Signed-off-by: Juergen Borleis <jbe@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Documentation: bootchooser: fix typosUlrich Ölmann2017-01-101-26/+31
| | | | | Signed-off-by: Ulrich Ölmann <u.oelmann@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* boot: add framework for redundant boot scenariosMarc Kleine-Budde2016-09-221-0/+274
There are several use cases where a redundant Linux system is needed. The barebox bootchooser framework provides the building blocks to model different use cases without the need to start from the scratch over and over again. The bootchooser works on abstract boot targets, each with a set of properties and implements an algorithm which selects the highest priority target to boot. See the documentation contained in this patch for more information. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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