New answers tagged android-emulator
You can directly install KOPLAYER android emulator. You don't need to root it again. And if you want to install .apk files, just drag them to KOPLAYER. KOPLAYER will install them. You can also directly download apps from play store in KOPLAYER.
I have tested and found that irrespective of the version of Android, if the ABI is arm, armeabi or maybe even mips (not sure), the process of rooting is going to work. They didn't worked for me, as of now, if the ABI is x86 or x86_x64 for Android 4 and 4+. Below, anything after "#" is supposed to be a helpful comment. Testing working on - Android 1.x, 2.x, ...
I think your memory is not enough to load the emulator settings (screen density etc). You should try a lighter version.
You can't freely copy binaries from your Ubuntu box to emulator one - even if all are x86-based, they use different basic OS libraries. To compile binary for Android-x86 target you must use special cross-compiling tools\environment. See Android sources toolchain to take a look on how they configure gcc+ld switches to create android-x86 binaries on Ubuntu ...
What file(1) utility says about your compiled binary? Because compiling on x86-based PC does not promises your binary always will have x86 target platform - GCC can produce virtually any targets.
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