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[Script][A2SD]Darktremor Beta 04 [Buzz] (01/29/2011)

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Darktremor Apps2SD Beta 04
Date of Release: January 29, 2011

Download Current Version

Instructions - Change Log - Commands - ROM List - Developer's Guide
Darktremor Apps2SD Fan Page ---- Darktremor Apps2SD Development Group


Are you installing Darktremor Apps2SD on your phone? Here are the instructions to help you: Facebook
Are you a developer wanting to include Darktremor Apps2SD in your latest ROM? Here is the Developer Guide: Facebook


Update on Beta 4
It seems I'm getting mixed results with these betas. I'm not sure why this is occurring, some people have been able to get this working right while others have had a hard time with it.

Currently, I'm rebuilding the entire program. This takes a while because I have to figure out how to pack all these options into the program but make it small enough to where it will run correctly.

I will say that some of the beta features are coming back of them is the search for a partition code. I suspect that code may be leading me into issues with certain platforms, so I'm going back to the method of mounting (mmcblk0p2 or mmcblk1p2).

Also, parts of the code will use Busybox Ash (the only code that won't will be starta2sd, which will still use Bash for the time being). The startup code will definitely use Busybox Ash.

Until then, here are the links to the the last two betas and the last official release:

Version Beta 04 -
Version Beta 03 -
Version -

And, if you want past versions, you can view the repository: (ignore the smiley face...that's XDA doing that.)


Beta 04 took longer than I expected to release. I have done major changes to the code:

1. New commands: convert-ext4 - This will convert your EXT3 partition into EXT4. Just a friendly reminder on this command: Not every rom supports EXT4, so it is possible to go into a boot loop if you switch roms. Use with caution.

2. Reworked convert-ext3 (convert-ext4 gets similar code) a flag file is set before the reboot (no conversion is done before the reboot). At load time, the conversion is performed. This takes longer in the reboot process and you may think your phone has locked up...wait about five minutes before doing anything with the phone.

3. Repair is it uses existing commands to repair the setup (reinstall, remove, cachesd, cachepart, nocache, datasd, nodata). Definitely shrinks the code.

4. Added fix_permissions program to the package. This may help with Superuser issues when using the datasd feature. It is used in reinstall, remove, datasd and nodata.

5. a2sd install is back!!! Both a2sd install and a2sd reinstall do the exact same thing.

6. Dalvik heap code has been shrunk and now creates a file called dalvikheap. Actually, the code has been doing this all along (since about, I think), but I never put the code in to use the file.

7. Low Memory Killer code has also been shrunk and uses a file caled dtset_lowmem to set the low memory killer parameter.

8. Replaced Busybox PS function with Toolbox PS. The issue with Busybox PS is that it gives a false reading when I look for android.process.acore (which is the main program when the GUI starts up). If that is present, the program thinks you are trying to run Darktremor without any command line parameters. This was because Busybox would report the process was there when, in reality, it wasn't (validated this when my phone was boot looping.) Toolbox's PS reports the correct setting. This should fix the bootlooping issues some people are experiencing.

9. New commands: usedtbusybox and usedefaultbusybox - these commands may help in diagnosing issues that is may be related to the native Busybox on your rom. a2sd usedtbusybox will use the Busybox that is packaged with Darktremor. a2sd usedefaultbusybox will turn back on the scan behavior of the program introduced in Beta 03.

10. Support for Darktremor Apps2SD version 2.7 and earlier has been discontinued. To upgrade correctly from one of those versions, use version Beta 03b or earlier.

11. Finally fixed stalled boot issues (or at least my tests with several roms says so.)

See the change log for additional details.

You will notice that if the program runs repair and finds a problem, it will correct the issue and reboot. You will see a second reboot when the dalvik-cache clears (this is to fix timing issues with CyanogenMod...I can't control that startup as well as I can other roms). This only happens if repair is ran or you flash a new rom (as repair will realign all data). If you are upgrading from a previous version of Darktremor, you should not see the reboots.

This is Darktremor Apps2SD, a multipurpose program that primarily allows a user to execute applications created for the Android OS on their Secure Digital card (with the proper setup...more on that later). But, Darktremor Apps2SD is all about stability. The goal is to be able for all users of the Android OS to be able to take advantage of a method to run their applications from a secure digital card.

But just because the Darktremor Apps2SD is all about stability, doesn't mean it isn't packed with features:

- Move applications (both free and paid) to the Secure Digital card.
- Move Dalvik Cache to run either from your Secure Digital card or from your cache partition and clears the cache on demand.
- Boot Loop Protection: prevents the phone from boot looping in the event the SD card could not be mounted.
- Dalvik JIT for faster performance on Roms which support it.
- User selectable sizes for the Dalvik heap sizes, allowing a user to freely optimize their system.
- Activate a swap partition on your SD card and sets how often the swap partition is utilized.
- Automatically fixes configuration issues.
- Users can check the free space on their SD card and check the installation to make sure all is setup correctly.
- Runs ZipAlign on demand...this makes your programs load faster.
- Built in help system for easy reference of commands.
- All features can also be reversed without repartitioning your Secure Digital card.
- New logging features assists in troubleshooting issues.
- Commands to set the Low Memory Killer feature at boot time. Great for those people who are the "set it and forget it" type.
- And more...

Darktremor Apps2SD is not the same as Froyo Apps2SD. Froyo Apps2SD creates a secure folder on the FAT32 section of your SD card (this is the section that you see when you mount your phone to your computer) and stores the programs there. This is nice as you don't have to do anything special with the phone, but it isn't backwards compatible with older versions of Android (Cupcake, Donut, Eclair) and, because of the way Froyo works, older programs not designed for Froyo will automatically stay on your internal storage (unless you install a program that forces the move to your SD card).

Darktremor Apps2SD takes a different approach. Based on the original CyanogenMod works, Darktremor Apps2SD uses symbolic linking to force Android into moving your applications to the SD card. Because Android will not allow anything to be ran from the FAT32 partition on your SD card (and, in Froyo, it will only allow you to run programs from a special folder), Darktremor utilizes filesystems called EXT2, EXT3 and EXT4. Each one of these filesystems is native to Linux (the operating system running Android), which allows you to run programs from them (same as, say, a computer running Ubuntu). This method is completely compatible with all versions of Android, including Froyo. In fact, you can run both the Darktremor Apps2SD and Froyo Apps2SD at the same time.

Check out the list of Roms that either have Darktremor Apps2SD installed or are compatible with Darktremor Apps2SD. Click on the link labeled ROM List at the top of this message.
Last edited by tkirton; 9th February 2011 at 11:35 AM.
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23rd January 2011, 07:22 PM |#2  
makaaaa's Avatar
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Very nice m8,

i'm using it on my CM7 Build #0, with much apps i have 156MB free..
Last edited by makaaaa; 23rd January 2011 at 07:27 PM.
23rd January 2011, 07:24 PM |#3  
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cool man sounds orsum will have to add this to my new rom
23rd January 2011, 10:23 PM |#4  
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Would you say this is better than the normal Froyo App2sd? is it any faster at loading the apps one the sd card loading from dick drive mode?
23rd January 2011, 10:28 PM |#5  
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Froyo app2sd sucks, this one is heaps better as apps are stored on ext partition, so you save way more internal phone memory. And yea its fast.

Sent from my HTC Wildfire using XDA App
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23rd January 2011, 10:38 PM |#6  
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nice to se you here tkirton

but i would love to see you @ ZTE blade forum to

will use your app in those roms
23rd January 2011, 11:25 PM |#7  
-Howard-'s Avatar
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I have now installed this, how do i know apps are being moved to the sd card?
24th January 2011, 02:30 AM |#8  
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I would love to for those roms. I'll have to look at the roms. Unfortunately, I don't have a ZTE Blade, but I don't own most of these phones that Darktremor works on (I only have a Sprint Hero and a Sprint Evo).

The more roms, the better.

Originally Posted by danne_jo

nice to se you here tkirton

but i would love to see you @ ZTE blade forum to

will use your app in those roms

24th January 2011, 02:44 AM |#9  
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Run a2sd check. That will check the configuration and tell you if everything is setup correctly.

Originally Posted by -Howad-

I have now installed this, how do i know apps are being moved to the sd card?

24th January 2011, 08:07 AM |#10  
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You can also just start "Titanium Backup" and check memory in the main screen
24th January 2011, 10:18 AM |#11  
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I installed Darktremor app2sd on Modaco custom rom (Froyo), and must say its excelent, I got internal memmory of 160 mb free, and now with 100 apps installed have 155 mb free. My ext3 partition is 512 mb and Dalvik cache is on ext3. With zipalign phone work well, no issues about stability, widgets work normal (its not case with Froyo a2sd).
Thanks Tkirton for this.
Last edited by markotak; 24th January 2011 at 10:38 AM.

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