Cyanogenmod 7.x/CM7 Based Roms - Mods a2sd sd-ext Ext4 and Linux-swap Patch2

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Update:
YOU MUST have a recovery that supports ext4 in order to use this patch. Currently there is only one recovery for G2 that I know of that is up-to-date that supports ext4 partitioning. That recovery is ext4 recovery. After you get ext4 recovery installed format and wipe everything before installing your rom of choice.

1. Format system
2. Format data
3. Format cache
4. Format sd-ext

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A lot of these scripts are based on the stock Cyanogenmod scripts to mount sd-ext partition and allow a2sd.

I've edited the stock system/etc/init.d/05mountsd to mount ext partition as ext4 instead of ext3. The system/etc/init.d/10apps2sd was made by Cyanogen himself and it can be found on the Cyanogenmod github. I've edited it to activate and utilize the sd-ext partition of the device. The swap patches and the cmparts source edits are all my own work. Please see the github for more details.

Required for swap: For swap you need a kernel that supports swap. E.G., Faux123, and may be others but it is your responability to find out which kernels support swap

Udate: this current patch is still working fine for me on the latest nightlies (deodex roms only). But there is a certain way that this patch needs to be installed.

It does not matter if you wipe or do not wipe before flashing.

1. If you are flashing this on cyanogenmod nightlies you need
to flash in this order, otherwise the permissions for your
rom will not be correct. Flash the rom first, then the
patch, then the gapps.

2. For flashing on other CM based roms (deodex only). As
many of you might know, Some roms already include
gapps. So because of this, we will need to flash a
compatible deodex Rom, since the patch sets
permissions for the system, and gapps will not work
correctly with the permissions if already installed in the
system. Flash in the same order you would for normal
cyanogenmod roms. Rom first, then patch, then gapps.
Yes even if the rom already includes
gapps you still must flash gapps.

This thread will only be discussion for Cyanogenmod These are AOSP Roms. DO NOT EVER ASK ABOUT SENSE ROM TWEAKS EVER, they just simply won't work with these mods.

Do not submit revised versions that are already posted, I will try to keep the patches as updated as possible. Do not distribute or modify any of the scripts without my given consent, or at least give me credit!

I am not responsible for you breaking something on your device. If you come and tell me that my mods messed up your phone, I will laugh at you.

I have been running these mods flawlessly with no issues. So let's get right into it.

Options:

WARNING: Before you do anything, do a nandroid
backup. If you need to partition your sdcard via recovery, back up your
entire sdcard to your pc before doing so as it will get formated.

If you want a2sd, then you will need a ext4 partition on your sdcard. I
recommend at least a 1GB+ partition. That's it, the scripts will do the
rest.
You can not have any other types of a2sd installed before applying the patch.
The patch doesn't remove, it installs If you have manually installed some
other type of a2sd, you will need to wipe and re-flash rom. The main
important thing is, make sure system gets wiped.

If you want Linux-swap, just simply add a swap partition to your sdcard when
you go to format it in recovery, simple.

Next download and flash the latest patch over your current rom. Be aware
that if you have a swap partition, that your phone will reboot itself once after
your initial boot. Don't freak out and come crying about how your phone is
boot looping, it only reboots once. This is all part of the initial setup to make
sure swap is working properly.

How to check if a2sd is active and working in terminal emulator from your
phone

$ su
    # df -h
    Filesystem                Size      Used Available Use% Mounted on
    tmpfs                   183.6M     32.0K    183.6M   0% /dev
    tmpfs                   183.6M         0    183.6M   0% /mnt/asec
    tmpfs                   183.6M         0    183.6M   0% /mnt/obb
    /dev/block/mmcblk0p26
                        487.8M    143.8M    318.9M  31% /system
    /dev/block/mmcblk0p27
                        430.0M    147.3M    260.5M  36% /data
    /dev/block/mmcblk0p28
                        149.6M     47.5M     94.4M  33% /cache
    /dev/block/mmcblk0p31
                         19.9M     17.2M      2.7M  86% /devlog
    /dev/block/mmcblk1p2      1.9G      1.0G    788.7M  57% /sd-ext
    /dev/block/mmcblk1p2      1.9G      1.0G    788.7M  57% /data/app
    /dev/block/mmcblk1p2      1.9G      1.0G    788.7M  57% /data/app-private
    /dev/block/mmcblk1p2      1.9G      1.0G    788.7M  57% /data/dalvik-    
    cache

If you see this part then you are golden

/dev/block/mmcblk1p2      1.9G      1.0G    788.7M  57% /sd-ext
    /dev/block/mmcblk1p2      1.9G      1.0G    788.7M  57% /data/app
    /dev/block/mmcblk1p2      1.9G      1.0G    788.7M  57% /data/app-private
    /dev/block/mmcblk1p2      1.9G      1.0G    788.7M  57% /data/dalvik-cache

How to check if swap is active working from terminal emulator on your
phone

$su
    # free
                       total         used         free       shared      buffers
    Mem:        376008       353776        22232            0        15756
    -/+ buffers:             338020        37988
    Swap:       249544        36780       212764

Next, enjoy your new mods

CMParts (Cyanogenmod settings source): https://github.com/pbeeler/android_p...s_apps_CMParts
Changelog: https://github.com/pbeeler/android_p...ts/gingerbread

Holy crap, its Sparksco. How are you doing bro. Looks good, I really don't use a2sd but other might.

Coming from the DARKSIDE.

Haha good man. Yeah this is only really usefull if you are a really heavy app user. That's why I recommend a 1GB ext partition. I'll also try to keep it updated for cm9 once it comes out. How the heck have you been?

Sent from my PG06100 using xda premium

Originally Posted by sparksco

Haha good man. Yeah this is only really usefull if you are a really heavy app user. That's why I recommend a 1GB ext partition. I'll also try to keep it updated for cm9 once it comes out. How the heck have you been?

Sent from my PG06100 using xda premium

I am good, Deving away with this great device. My old team pretty much jump started the dev community for the MT4G about a year ago, we released like 10 Roms, Now we all went are seperate ways and I joined up with TDJ and we are now DARKSIDE Dev Team. I am working on Sense 3.5 Rom, ICS Rom (built from source), and a CM7-Hybrid Rom. Besides that I am hanging in there. Thanks for the Mod. What are you up to?

Edit: Anybody wanting to try this, Do it, I completely support anything Sparksco offers, his Rom was legit back in the day of the G1, He is a great dev. There you go gave you some endorsement. lol

Originally Posted by Royalknight6190

I am good, Deving away with this great device. My old team pretty much jump started the dev community for the MT4G about a year ago, we released like 10 Roms, Now we all went are seperate ways and I joined up with TDJ and we are now DARKSIDE Dev Team. I am working on Sense 3.5 Rom, ICS Rom (built from source), and a CM7-Hybrid Rom. Besides that I am hanging in there. Thanks for the Mod. What are you up to?

Edit: Anybody wanting to try this, Do it, I completely support anything Sparksco offers, his Rom was legit back in the day of the G1, He is a great dev. There you go gave you some endorsement. lol

Very nice. Glad to see your doing well with the deving. I'm accually just been making kernels most of the time, but these patches are my little side projects when I have time. Thanks for the endorsement. Still just tinkering around here and there, but have been using github and working with source code a lot more now.

Sent from my PG06100 using xda premium

Damn I seen Sparksco name and got really happy. I miss your rom

Originally Posted by sparksco

Very nice. Glad to see your doing well with the deving. I'm accually just been making kernels most of the time, but these patches are my little side projects when I have time. Thanks for the endorsement. Still just tinkering around here and there, but have been using github and working with source code a lot more now.

Sent from my PG06100 using xda premium

If you want to drop some kernels on this forum no one would object. We already have some great ones to choose from but nothing wrong with more choices. I'll test! Lol.

Sent from my HTC Glacier using XDA App

Hell yeah! I used your roms all the time on the g1. Good to see you around!

Sent from my HTC Glacier using XDA App

Originally Posted by estallings15

If you want to drop some kernels on this forum no one would object. We already have some great ones to choose from but nothing wrong with more choices. I'll test! Lol.

Sent from my HTC Glacier using XDA App

Now that you mention it I did try to build a kernel for glacier based on my own kernel but it did not work out very well. Hopefully more kernels will start to pop up once cm9 is available that support swap. The best way to tell if it's working is on the logcats

Sent from my PG06100 using xda premium

Thanks man, I have been waiting for more mods like this. Don't know why devs haven't been incorporating this into all their roms. Appreciate the work, looking forward to seeing u more around here.