@android:/ # /system/bin/b2g.sh
/system/bin/b2g.sh[4]: mkdir: not found
/system/bin/b2g.sh[5]: chmod: not found
/system/bin/b2g.sh[9]: getprop: not found
/system/bin/b2g.sh[68]: getprop: not found
[328, Main Thread] WARNING: NS_ENSURE_TRUE(mTriggerFd != -1) failed: file /home/alexandre/Documents/codaz/Mozilla/GeckoGonk/gecko-dev/widget/gonk/GonkMemoryPressureMonitoring.cpp, line 256
[328, Main Thread] WARNING: NS_ENSURE_SUCCESS(rv, rv) failed with result 0x8000FFFF: file /home/alexandre/Documents/codaz/Mozilla/GeckoGonk/gecko-dev/widget/gonk/GonkMemoryPressureMonitoring.cpp, line 96
[328, Main Thread] WARNING: NS_ENSURE_SUCCESS_VOID(memoryPressureWatcher->Init()) failed with result 0x8000FFFF: file /home/alexandre/Documents/codaz/Mozilla/GeckoGonk/gecko-dev/widget/gonk/GonkMemoryPressureMonitoring.cpp, line 366
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***
*** This is stdout. Most of the useful output will be in logcat.
***
*****************************************************************
1550763449630   addons.xpi      WARN    List of valid built-in add-ons could not be parsed.: [Exception... "Component returned failure code: 0x80520012 (NS_ERROR_FILE_NOT_FOUND) [nsIXPCComponents_Utils.readUTF8URI]"  nsresult: "0x80520012 (NS_ERROR_FILE_NOT_FOUND)"  location: "JS frame :: resource://gre/modules/addons/XPIProvider.jsm :: startup :: line 2202"  data: no] Stack trace: startup()@resource://gre/modules/addons/XPIProvider.jsm:2202
callProvider()@resource://gre/modules/AddonManager.jsm:204
_startProvider()@resource://gre/modules/AddonManager.jsm:653
startup()@resource://gre/modules/AddonManager.jsm:806
startup()@resource://gre/modules/AddonManager.jsm:2794
observe()@resource://gre/modules/addonManager.js:65
1550763451878   addons.xpi      WARN    No list of valid system add-ons found.
*** UTM:SVC TimerManager:registerTimer - id: xpi-signature-verification
[328, Main Thread] WARNING: Vsync not supported. Falling back to software vsync: file /home/alexandre/Documents/codaz/Mozilla/GeckoGonk/gecko-dev/gfx/thebes/gfxAndroidPlatform.cpp, line 379