A recent software update was not successful. Your vehicle cannot be driven

Re:A recent software update was not successful. Your vehicle... by stefan_ on Monday December 25, 2023 @04:45PM (#38766436)

I'm sure the infotainment system does, but that is not all that is being updated; you have many more processors in ECU, assistance systems and so on that are also sometimes getting fed new firmware over various wonky buses as part of an upgrade. In some instances there might even be multiple levels involved in the firmware distribution.

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Re:A recent software update was not successful. Your vehicle... by yjftsjthsd-h on Monday December 25, 2023 @05:18PM (#38766720)

So? Everything that can update firmware should do the same thing.

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Re:A recent software update was not successful. Your vehicle... by stefan_ on Monday December 25, 2023 @05:25PM (#38766787)

And then what? A/B update isn't magic dust, if some sub component ends up with an incompatible firmware because it had to boot to the alternate partition, you might still have an incompatible overall system.

(Not like the subsubsupplier of that module even specced the extra flash memory for A/B update, hah)

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Re:A recent software update was not successful. Your vehicle... by mistercheph on Monday December 25, 2023 @07:18PM (#38767686)

Retain the known good firmware for each controller on master disk A, if the update fails, reflash all components.

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Re:A recent software update was not successful. Your vehicle... by gpderetta on Monday December 25, 2023 @06:12PM (#38767236)

The real question is why would they be doing OTA upgrades of such critical systems.

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