bootctrl: fall back to active slot if current slot not found in cmdline #1
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While postmarketOS makes use of a kernel cmdline argument, this isn't the case for all distros. Furthermore, this argument isn't present in those added automatically by the Android bootloader. In order to still be able to use `qbootctl` on other distros, this change ensures we use the currently active slot as the current slot when the cmdline argument is missing. This ensure `qbootctl -m` picks up the correct slot more often than not, instead of always defaulting to `_a`.
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While postmarketOS makes use of a kernel cmdline argument, this isn't the case for all distros. Furthermore, this argument isn't present in those added automatically by the Android bootloader.
In order to still be able to use
qbootctlon other distros, this change ensures we use the currently active slot as the current slot when the cmdline argument is missing. This ensureqbootctl -mpicks up the correct slot more often than not, instead of always defaulting to_a.