Unable to Run mksdcard sdk tool on ARMv7 Processor Ubuntu 14.04

Question

When trying to install Android Studio on my Linux Laptop, I get "Unable to Run mksdcard tool" From what I can tell from searching, this is usually caused by lacking the 32 bit compatibility libraries on 64 bit Linux, however I am running it on an ARMv7 processor, using the crouton project to use Linux on my Chromebook. I have tried install the recomended packages ending in i386, but the command line returned:

Reading Package Lists... Done
Building Dependendency Tree
Reading State information... Done
E: unable to locate package [Name of package here]
E: Couldn't find any package by Regex '[Name of package]'

Does anyone know what is causing this and how I can fix it?

Answer 1

I've discovered a workaround.

After a little searching, I've found that we can create executable binary of the tool for the ARMv7 platform ourselves! Whupee!

1. Head over to GitHub and pick up the source code, mksdcard.c. Download this to wherever you'd like, but make sure you download it as mksdcard.c and not as mksdcard.c.txt, which your browser might try to do. You can always rename the file later in case you accidentally save the filename incorrectly.
2. Over in your chroot environment, head to the directory where you downloaded the file.
3. Make sure you have the gcc compilation tools installed. Try running gcc -v in an attempt to see what version of GCC you have installed. If this doesn't work, you'll need to install GCC via sudo apt-get install gcc.
4. Run gcc -o mkdscard mksdcard.c. This uses GCC to compile the source code into something that can be executed. After compilation has completed, you can use ./mkscard to have Linux execute the binary file, which verifies that it works.
5. Navigate to your Android SDK Tools directory. This is usually ~/Downloads/Android/Sdk/tools. By running ls, you'll list the files and find the version of mksdcard that your Linux distribution doesn't understand how to run. (Running ./mksdcard on this file will confirm this.)
6. Backup the broken binary somewhere, then delete the copy in the tools folder. (I created a backups/ directory within the Android SDK Tools folder to move it to.)
7. Within the directory, use rm -r mksdcard to delete the old mksdard binary.
8. Finally, copy your compatible binary over to take it's place, e.g. cp ~/Downloads/mksdcard . (Copies the mksdcard binary we've created to the current directory ., the Android SDK Tools folder.)
9. Head back over to your Android Studio installer. In the dialogue complaining about mksdcard failing, hit Retry and the installation should continue. After it's finished, be sure to apply any updates that are recommended by the environment. Enjoy!

Answer 2

For newer versions eg. 3.1 C4 of Android Studio running with Ubuntu on ARM32 you will also need to place mksdcard in ~/Downloads/Android/Sdk/emulator (referencing like path from Alext T.).