I wanted to try out the new ART runtime, but didn't realize my custom ROM doesn't support it. So now I am getting recurring Force Closed messages after booting, and can't get through to the settings menu to switch back to Dalvik. So before I wipe everything and spend hours setting up my phone from scratch, is there a way to manually change back to Dalvik from the recovery menu? I think there should be a flag somewhere, that instructs Android to do the 'recompile' after a reboot.
Via the recovery menu, I have full root access over a adb shell and can mount all filesystems.
Answer
I just did this!
/data/property/persist.sys.dalvik.vm.lib is a textfile containing one of two values: 'libart.so' or 'libdvm.so'. You can change from ART to Dalvik simply by editing this file.
Ex: adb shell 'echo libdvm.so >/data/property/persist.sys.dalvik.vm.lib'
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