# Linux Kernel Module Cheat
The perfect emulation setup to study and develop the <<linux-kernel>> v5.9.2, kernel modules, <<qemu-buildroot-setup,QEMU>>, <<gem5-buildroot-setup,gem5>> and x86_64, ARMv7 and ARMv8 <<userland-assembly,userland>> and <<baremetal-setup,baremetal>> assembly, <<c,ANSI C>>, <<cpp,C++>> and <<posix,POSIX>>. <<gdb>> and <<kgdb>> just work. Powered by <<about-the-qemu-buildroot-setup,Buildroot>> and <<about-the-baremetal-setup,crosstool-NG>>. Highly automated. Thoroughly documented. Automated <<test-this-repo,tests>>.

### 34.2. Install Android apps

I don’t know how to download files from the web on Vanilla android, the default browser does not download anything, and there is no `wget`:

- https://android.stackexchange.com/questions/6984/how-to-download-files-from-the-web-in-the-android-browser

- https://stackoverflow.com/questions/26775079/wget-in-android-terminal

Installing with `adb install` does however work: https://stackoverflow.com/questions/7076240/install-an-apk-file-from-command-prompt

F-Droid installed fine like that, however it does not have permission to install apps: https://www.maketecheasier.com/install-apps-from-unknown-sources-android/

And the `Settings` app crashes so I can’t change it, logcat contains:

    No service published for: wifip2p

which is mentioned at: https://stackoverflow.com/questions/47839955/android-8-settings-app-crashes-on-emulator-with-clean-aosp-build

We also tried to enable it from the command line with:

    settings put secure install_non_market_apps 1

as mentioned at: https://android.stackexchange.com/questions/77280/allow-unknown-sources-from-terminal-without-going-to-settings-app but it didn’t work either.

No person alive seems to know how to pre-install apps on AOSP: https://stackoverflow.com/questions/6249458/pre-installing-android-application

Tested on: `8.1.0_r60`.