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In order to run Virtual Device, open a command prompt (Windows) and issue following command. Rename “” to “mkfs.yaffs2” For File System EXT4ĭownload “make_ext4fs” from in your computerĭownload “EXT4 Unpacker” from (This tools may work ICS onwards only but I have not tested for older Android version. (Don’t keep it running and go to next step otherwise next steps will not work) For File System YAFFS2ĭownload “” (or 86 if you are using x86 processor for your Virtual Device) from in your computer Delete android emulator mac download#Now once you know the file system, you need to download following additional tools in your computerĬlose/Exit virtual device. In the output, locate the text similar to “/dev/block/mtdblock0 /system” and the next word (yaffs2/ext4) notifies the file system. Once the virtual device is up and ready, issue following command adb shell mount Replace AVD_NAME with your virtual device name in the following command emulator -avd AVD_NAMEĭo not close command prompt. Run Virtual Device using command prompt (Windows) only and not using AVD Manager. Before we begin anything, we need to find out the file system that the Virtual Device uses. Android Emulator File SystemĪndroid Emulator comes in two different file system flavor.Įach “*.img” belongs to one of these file systems and both are not compatible with each other. This way, all our changes will be stored. system folder) within emulator, extract the “system.img” out of emulator, and place it under AVD Location. Once we make the change in “system.img” (i.e. When you close the emulator, this file will be deleted.Īny changes to “cache.img”, “sdcard.img”, “userdata.img” and “userdata-qemu.img” will be stored but any changes to “system.img” will not be stored when the emulator is closed. If the “system.img” file exists at AVD Location, that file will be used rather than “system.img” file available at Emulator Base Image Location.Įmulator combines all “*.img” file and creates a Virtual Device Temporary File and work off of it. When the emulator is started from command prompt (Windows) or using AVD manager, it will get the “system.img” from Emulator Base Image Location and rest of the files like “cache.img”, “sdcard.img”, “userdata.img” and “userdata-qemu.img”. When we create virtual device using AVD Manager, it copies certain files EXCEPT “system.img” from Emulator Base Image Location to AVD Location.
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