[Optimus One, P500 Original Android Development] ungaze:
INTERACTIVE DATA2SD MOD

There are a lot of ways of moving /data to SD ext(2nd) partition. Here I'll show you an easy way to do it which is fully compatible with Optimus One(and possibly other devices as well). If you don't like the method used here, try other Data2SD/ext mod which may suit your needs, but please, don't hesitate to post your feedbacks/comments be it negative or positive (feedbacks/comments are highly appreciated).

The mod, as the title says, moves the whole /data partition to your SDcard's 2nd(ext) partition, which could give you virtually unlimited space to install apps and also boost quadrant scores. I have tested this with EXT2(and can get up to 900+ on quadrant with stagefright off or 2000 with stagefright on, OC'd to 787mhz with I/O score playing around 4000 - 5000+), so if you're using other FileSystems, please do post your feedbacks and possibly your I/O scores as well. I have also enforced an e2fsck on every boot which is useful for ext2 users as this will check and fix your 2nd partition for errors on every boot, if there's any.

Dalvik2cache temporarily unavailable with v4b5. A new version with the option to move dalvik-cache almost anywhere possible is coming up. If you still want to use the dalvik2ram mod, try v1.2(link at the bottom).

Why move dalvik-cache to RAM? Basically, the idea of moving the whole /data partition to SD ext partition is to primarily get more space for installing apps. And in this case, it does perform very well and combined with fast SD cards, it could even provide real-life performance boost. Now the downside to this, is that while most /data contents just get copied and read not that much often, dalvik-cache stores some info that needs to be read and updated very frequently. This results in a high I/O read/write frequency and thus results in shortening of the SD card life(in theory, the same could also be said when left internally but this time dealing damage to the nand disk instead). To counter this, the method I used is to move dalvik-cache to a virtual-disk like partition known as a tmpfs. tmpfs resides in RAM and has dynamic resizing structure which can allocate space depending on your needs. This way, dalvik-cache won't be using any physical disk and therefore causing damage to none. Almost too good to be true right? Well the drawback is, because tmpfs resides in RAM anything written onto it get's lost when rebooted or in-case of power loss thus resulting in loooong boot times(depending on the apps installed), as dalvik-cache contents are being rebuilt on every boot. Well I think that's enough of dalvik-cache and lets start with the mod.

WARNING

USING A NON-APP2SD ROM OR SIMPLY UNINSTALLING APP2SD IS STRICTLY RECOMMENDED

DO NOT EVEN TRY THIS MOD IF YOU HAVE ANY FORM OF APP2SD INSTALLED

ALWAYS PERFORM A BACKUP BEFORE TRYING OUT STUFF LIKE THESE

Disclaimer: I am not responsible for anything bad happening to the world blah blah, you know the drill!

INSTALLATION

An SD card with at least two partitions required.(First partition as FAT32 for regular SD use and second partition as EXT2(EXT3 and EXT4 will be supported on future builds)

1. Download Data2sd_v4b5.zip here!(latest stable build)

2. Flash via recovery

(testers WANTED, preferably using different ROMs.)

Test release can be found here!!!!!

QUADRANT TEST RESULT:

This mod is still on-going and still under development. Although it's already fully functional, some features or options may still be added later-on. Please post your feedbacks and give thanks if you can.

To disable DarkTremor's app2sd, just follow these steps

Ungaze_Data2sd_v1_2.zip(archive)

#Data2Sdext_Dalvik-cache2RAM
#
#By: Ungaze
#
#Credits:
#uncorrupted for original script for a wide variety of devices
#sibere and ownhere for additional resources
#pomka78 for dalvik-RAM script and Idea
#nervgaz, franciscofranco, andy572 and joesephmother for ideas and suggestions.
#all the testers and everyone who provided feedbacks on this mod. Thanks to you guys.
#