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## 01_Android_LXC_Note.md

      
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                ppoffice
                / 01_Android_LXC_Note.md
            
            
              Last active
              September 11, 2023 00:55
            
              
                LXC for Android 9.0.0 r18 Goldfish
              
          
    Steps to build Android kernel and system for LXC:


Download Android SDK, NDK, system and kernel source code;
Download modified lxc and libcap source code (ppoffiec/lxc-android, ppoffice/libcap-android)
Build Android system from source first so that we can link to its shared library when we build lxc (or maybe we don't have to);
Modify Android kernel config and make sure lxc-checkconfig does not report any missing features. Then build kernel;
Modify Android system/core/rootdir/init.rc according to init.rc.diff. Make sure you mount all the cgroup subsystems needed (cpu, cpuacct, cpuset, memory, pids, devices, freezer, blkio) under /sys/fs/cgruop, otherwise lxc won't find them;
Rebuilt the Android system image so that the modified init.rc is in the image;
Fire up the emulator with custom kernel (emulator -kernel kernel-file-path) and use adb shell and dmesg to check if everything is doing ok.