yashsingh1/xdaforums huggingface dataset:
[Epic 4G Android Development] TurboFool:
Correct me if I'm wrong, but the ENTIRE POINT of 2.5 over 2.1 is its support for EXT4, making it pointless to use it over 2.1 if you're not interested in EXT4 even if it does work on RFS (and it doesn't). Also correct me if I'm wrong, but the question the person I was responding to asked wasn't whether or not he needed EXT4 (and btw, your comment that you can use any ROM with or without this is false, as most ROMs don't yet support EXT4), but whether or not 2.5 now installed EXT4 automatically or whether he needed to install it first as was initially more clear in the instructions.

And while the file system's completely separate from the OS, that's like saying the hardware is completely separate from the OS. Sure is, and yet we can't seem to manage to plop any kernel or any version of Android on any device we wish. Why not? Because it has to be programmed with the appropriate drivers for that hardware or it won't function (as a hardcore Linux user such as yourself knows). Same deal here, if the OS doesn't support the file system, it can't be installed on it or read from/write to it. The Epic used a proprietary RFS file system that the OS had to be custom designed for, making it much harder for us to port ROMs to it. Now it's been modified to run EXT4 which is the new standard for Android which will open up a lot of doors for us. My assumption is that those working with it essentially swapped the components that interpreted RFS for ones that interpret EXT4, and therefore it won't work on RFS. Considering yesterday the instructions all clearly stated it wouldn't even boot if you hadn't installed EXT4 first, I think it's clear it won't work without it.
[Epic 4G Android Development] decalex:
To above post:

So, I'll take it that flashing this ROM (via instructions) automatically sets you up with EXT4?

Also, here's a pretty good write up on the differences between the 2 file systems (from the i9000 forums)

http://xdaforums.com/showthread.php?t=799931
[Epic 4G Android Development] KUHawk:
More or less, but not exactly. I followed the directions on the EXT4 Support link from the OP. Your list is a slight variance of those directions.
[Epic 4G Android Development] TurboFool:
My indication, since he still links to the EXT4 thread and didn't increment the version number, is that you still need to install EXT4 separately. But I could be completely wrong as it's unfortunately not stated clearly in the OP.
[Epic 4G Android Development] edonnelly:
I haven't noticed anything much either, but still holding out hope and haven't really tested too much. Others seem to be having good results. It does seem to take a bit longer to boot up for me --- or at least longer before the phone is fully-responsive after booting up.

All is absolutely true for me, too.

I'm having the exact same problem, but it does pre-date Quantum 2.5 by a couple weeks for me, and I had the problem on another ROM, so I think it's an app issue.

Agreed!
[Epic 4G Android Development] chris378:
Is there a stable ASOP LOCKSCREEN zip yet? I've read that its having isues with the dk28 but there's a lot of genius minds in this forum so I'm hoping someone has figured out how to fix the mess with it

Thanks in advance
[Epic 4G Android Development] dhero1:
see Simply Lockscreen in the Market, and move on ... :p
[Epic 4G Android Development] smoothone:
That is a huge NO! The phones kernel has to work with the file system and if you format your partitions to ext4 then you need to use the supplied ext4 compatible kernel which Dameon had supplied us with in the ext4 thread! Dameons 2.5 should come with its usual kernel so the rom can be flashed to anyones phone not using ext4. Dameons 2.5 is not optimized in any way to use ext4 file system. It is the same rom as the one you would use without the ext4 file system except you would like I stated before use the ext4 kernel! I can install my Linux OS on many different file systems, Reiser, Fat, EXT3, 4, etc! Please feel free to clear this up Dameon.
[Epic 4G Android Development] smoothone:
For those of you using exchange and not getting mail past three days you should be able to change this in the mails settings. The default for this exchange setup is three days.
[Epic 4G Android Development] dmarden:
You mean GoTo Lockscreen, lol.
[Epic 4G Android Development] dhero1:
Looks like they do similar things - but add music & sound controls for Simply Lockscreen? Oh, and also, it's free ... :p
[Epic 4G Android Development] TurboFool:
That contradicts everything we went through in both threads. Dameon provided an ADDITIONAL kernel in the EXT4 thread, which was one of TWO updates he made during the process, but the initial 2.5 was all about EXT4. Again, even if you COULD run it without EXT4 though, there's no benefit, as the only notable change (besides including the DRM fix you could apply separately) from 2.1 is EXT4, so nobody, including the person we're trying to assist, would be clamoring to install 2.5 if not for EXT4, so replying to tell the person they don't need it isn't helpful since that was CLEARLY not what they were asking.

And yes, you can install Linux on any file system THAT IT SUPPORTS. If it doesn't support it, you can't install on it. The support was added to this kernel and ROM. Without that it wouldn't work. Period.
[Epic 4G Android Development] smoothone:
I agree with all that you said but if that's the case then Dameon should state that this rom will only work with the EXT4 mod in his OP! The OP states that this rom has support for EXT4 and that is a little misleading? So then all of Dameon's future roms will only be for ext4?
[Epic 4G Android Development] gharris040604:
Ok I let my phone die and when I rebooted it, it rebooted in safe mode , just base apps are present hasnt anyone experienced this yet
[Epic 4G Android Development] smoothone:
That's funny I just read this post after I posted above! I agree
[Epic 4G Android Development] edonnelly:
The problem is not the setting, the problem is that if you set it to more than three days it reports a connection error.
[Epic 4G Android Development] smoothone:
OK so I flashed 2.5 and got stuck at the Samsung Logo so I am restoring and think it is safe to assume that you need to do the EXT4 mod in order for 2.5 to work!

Dameon maybe this would be nice in big red letters in the OP for those wondering about this? Thanks again.
[Epic 4G Android Development] Wishkah420:
Does this support custom boot and shutdown screens? Love this ROM, sooooo fast! Thanks and keep up the great work.

Sent from my Emotionless Haxsung Epic 4G rocking out with Quantum 2.5 EXT4
[Epic 4G Android Development] lviv73:
Yo Dameon I just flawlessly installed Quntum rom with Ext4 and everything is perfect exept one thing:The phone wont charge while its off.I get the empty battery with round ring and led light dont even come on,and even when I turn off the phone with charger unplugged I stil get that" battery pic with waiting circle" and phone dont even turn off(i gotta battery pull everytime),please provide a fix.I had this happen with few other roms and fix was provided,unless I removed something that was needed,anyone else got this problem?
[Epic 4G Android Development] logikgr:
I have QR 2.1 installed. If I enable USB Tethering via the settings, will.I.be charged extra? (I don't a tethering plan.)
[Epic 4G Android Development] mattallica76:
If you flash this kernel, that problem will be fixed.

http://efragtv.com/android/DK28-EXT4Kernel-FINAL.zip
[Epic 4G Android Development] lviv73:
Usb tether dont work,use PDANet or easytether from the market they are both free and there is no extra carrier costs or use google's wifi tether.
[Epic 4G Android Development] codest3r:
I opened a bug on this and think it's already fixed in the most recent kernel. D turned it around fast! Download the latest and reflash. Make sure you flash the one you just downloaded and not the older ones.

Sent from my Epic 4G on XDA App
[Epic 4G Android Development] lviv73:
Man this phone is flying now with Ext4,im surprised that a file system can make such a big difference.I wonder if its possible to install android on Raiser fs,it would probably see huge improvement cuz Raiser fs is made for small files.
[Epic 4G Android Development] lordxcom:
Insane speed and battery life, Great Job !
[Epic 4G Android Development] Nunchucker:
I'm not sure if Quantum or DK28 is responsible, but the browser FC's every time I long-press to save an image.
[Epic 4G Android Development] mattallica76:
I'm unable to reproduce this error. I'm using Quantum 2.5 ext4. In you browser settings, make sure

Default storage

is set on Memory card and not Phone.

Edit: Just had it happen to me also. It doesn't FC untill you click on save.
[Epic 4G Android Development] Nunchucker:
Yeah, that's exactly my experience.i should have been more specific.
[Epic 4G Android Development] mattallica76:
Looks like someone already opened up a bug for this one back on Dec 17th.
[Epic 4G Android Development] ryno502:
Well, I worked up the courage to install the Ext4 MOD and Quantum 2.5, I heard too many good things and couldn't resist the urge to try it out for myself any longer.

Everything went smoothly.

I have a question though, is the Kernel provided in the Ext4 Mod .zip up to date, or is there another one I need to flash?
[Epic 4G Android Development] cellington77:
Loving this rom with the ext4 support. Everything is much smoother and faster now.
[Epic 4G Android Development] mattallica76:
It's not up to date. You need this one.

http://efragtv.com/android/DK28-EXT4Kernel-FINAL.zip
[Epic 4G Android Development] ryno502:
Flashing now. Thank you. I don't need to wipe cache or anything, right? I never flashed just a Kernel before, until a few minutes ago when I flashed the one that came with the Ext4 mod.
[Epic 4G Android Development] mattallica76:
It doesn't hurt to wipe the cache.
[Epic 4G Android Development] ryno502:
Okay, thanks. And just to be safe, I flash using modified 2.5.1.2 ClockworkMod, correct?
[Epic 4G Android Development] mattallica76:
Correct. 2.5.1.2
[Epic 4G Android Development] ryno502:
Thanks, I appreciate you clarifying for me.

Flashed it and everything went smoothly. I am restoring all my apps with Titanium now. Can't wait to test drive this new file system :)
[Epic 4G Android Development] TrentB:
You can also backup in clockwork mod and do an advanced restore of the data only which will take care of all your apps and data (no more punching in google account info etc again)
[Epic 4G Android Development] peterock357:
ok i think i finally got it!!!! for everyone having trouble!! Dont reboot after the install-ext4. Just flash the rom while your still in the correct clockwork then flash the new kernal zip!! yay!
[Epic 4G Android Development] logikgr:
Thanks!
[Epic 4G Android Development] imwillzillla:
Quick question, do we just flash the updated kernal with the new clockword mod or do we have to do something differently?
[Epic 4G Android Development] Dameon87:
You can flash the kernel w/ either CWM. The point of having the OLD cwm is mainly for that purpose alone; flashing kernels in case you flash the wrong kernel.

=]
[Epic 4G Android Development] slipmaggot8:
Dameon....your the best!!when is 2.6 coming? And can someone make a video or a mirror with top to bottom instructions for the noobs plz.. :o
[Epic 4G Android Development] hayabusa1300cc:
Featured deleted
[Epic 4G Android Development] hayabusa1300cc:
To whomever asked if ext4 if needed for this 2.5 rom. |OP| stated it is required.
[Epic 4G Android Development] urbanlegends08:
how!?!?!?

"Now you need to open up a command prompt in windows. To do this, Hit either Start->Run, or Hold the Windows Key and hit R, and type in cmd and hit enter.

Next you need to type : cd /path/you/extracted/OneClickEXT4

Now type the following into that window and hit enter:"

GUYS, i've been going at this for an hour. I cannot figure out how to do that, and it wont let me. I have it in my documents, in a file called ext. HOW DO YOU USE that adb thing. is it a program? i already went to that forum "adb for dummies" and i dont see how to use that with the galaxy s phone. Please please please someone explain that part to me. In in stock ROM, STOCK ROM, and i HATE stock rom.
[Epic 4G Android Development] HipHopIsLyfe37:
I don't know if this has been answered yet, but do I have to do the ext4 mod in order to flash this ROM? or can I just flash it like normal. It seems to me people are having problems and I don't want to go through the hassle
[Epic 4G Android Development] smoothone:
I just read the OP for the tenth time and nowhere does it say that it is required. It states everywhere that ext4 is supported and there is no reason for one to think that you can flash the upgrade without it! Out should new in big red letters and people will not be asking that question 100 times over! You can run the new tom if there was a kernel included with rfs support. In this case there isn't!
[Epic 4G Android Development] magoo5289:
Yes it is required.
[Epic 4G Android Development] magoo5289:
In one of the zip files provided to install ext4, there will be a program called adb. Open a DOS command prompt, browse to wherever you extract this folder to and run the command adb reboot recovery with your phone plugged into the computer via usb.
[Epic 4G Android Development] smoothone:
Was that in response to my post? We already now this but just saying it should be made clear in the OP!
[Epic 4G Android Development] mattallica76:
I'm using Dolphin Browser HD as my default browser now to work around this issue.
[Epic 4G Android Development] johnbarry3434:
I put mine on the root of the c:/ drive to make it easier to navigate to. You need to navigate to the folder in the command prompt and then "adb reboot recovery" should work...provided you have the proper drivers installed...which you sould if you used one click root...

Sent from my Epic beast of a phone
[Epic 4G Android Development] lloydcabraham:
Best Epic rom to date. Came from the Evo where they had more development but this rom and ext4 has returned faith in my epic. One thing I'd like to request though is support for DarkTremor's a2sd. It would really be the icing on the cake!

Well, that and a working hulu.
[Epic 4G Android Development] SnoopDawg:
Dude, this ROM is as smooth as Butta!

I love the mail replacement from the galaxy tab.
[Epic 4G Android Development] formula84:
I was coming from midnight rom to try out something with tw launcher. With this rom after flashing there is no way to get back into clockwork, using adb reboot recovery it just sits on samsung screen. Then ODIN back to stock DK28 redid the whole ext4 support process over again. Reflashed the rom and then tried doing the one click clockwork redirector and then installed quickboot, chose recovery and again sits there... what the hell is going on? this worked fine with midnight 2.2 and it would get me to 2.5.1.2 cwm. I can use the 3 button to get to 2.5.1.0 but this is no help with ext4.
[Epic 4G Android Development] mattallica76:
Which version of Quantum did you flash?
[Epic 4G Android Development] formula84:
2.5 from op
[Epic 4G Android Development] lviv73:
Anyone knows how to check if Ext4 is being used?
[Epic 4G Android Development] esgar2:
flashing isnt working i think i need 2.5.1.2 ClockworkMod dose anyone know how to update it ? i tried using rom manager it says error on download so now im stuck some one help please
[Epic 4G Android Development] Squeaky369:
I just rooted my second Epic with the latest one click root and downloed the 2.5.0 version of this. Flashed the DK28 modem and once I flashed 2.5.0 I'm getting stuck at the Samsung Mobile screen. I did the three wipes of the data and cache. I was able to flash 2.2.0 and it worked just fine and booted. Is EXT4 required for 2.5.0 to work or is it optional?

Thanks guys!
[Epic 4G Android Development] ggrip:
Per OP to check if you have ext4 use the following adb commands:

adb shell mount

or

adb shell df

(see http://xdaforums.com/showthread.php?p=10157286&highlight=adb+shell+mount#post10157286)
[Epic 4G Android Development] edonnelly:
It is required. But, pretty much the only difference between 2.5 and 2.1 is the ext4 support, so if you don't want ext4 then you should be fine with 2.1.
[Epic 4G Android Development] urbanlegends08:
Ok, but what about that other part about the oneclickext4? what is that? im still a little lost
[Epic 4G Android Development] urbanlegends08:
i managed to do that "adb reboot recovery" part, but it didn't get me into the modified clockwork. I think i missed the step about the "Oneclickext4", but there is NO FILE WITH THAT NAME where I extracted everything. HELP?
[Epic 4G Android Development] mister2quick:
So here's what I did to get this rom flashed (due to issues not discussed here) and roughly the steps I performed

Step 1 Issue 1: adb reboot recovery would only bring me to the stock recovery

Solution: 3 finger salute would load CWM 2.5.1.0

Step 2: Flash prepare.zip

Issue 1 Revisit: adb reboot recovery still would only bring up the stock recovery

Solution?: 3 finger salute -> CWM 2.5.1.0 -> reboot recovery

Issue 2.1: would load up stock recovery

Step 3: 3 finger salute -> install quantum -> reboot recovery

(THIS is the only way I could load 2.5.1.2!!!)

Step 4: Flash prepare.zip then Flash Quantum then flash EXT4-KERN.

Step 5: Reboot & Enjoy.

Hope this helps others having the same issues as me!
[Epic 4G Android Development] Dameon87:
OP and topic title updated to reflect the REQUIRED state of the EXT4 mod on 2.5.0

Though technically, you could flash a default DK28 kernel (not an ext4 kernel) and it would work 100%.
[Epic 4G Android Development] Squeaky369:
Thanks, I see now in the title it says it was required, but for some reason I thought it was optional.

Thanks!!
[Epic 4G Android Development] edonnelly:
There were some posts stating it wasn't required by people other than Dameon87 (the author of both the ROM and the ext4 mod), but he has since weighed in on the matter and said it is (though, as you can see from the post right above yours that the requirement is not absolute).
[Epic 4G Android Development] MysteryEmotionz:
Idk if its the rom or ext4 but I'm getting the best battery life ever. 9-1/2 hours unplugged with 4 hours screen on time 23% battery left
[Epic 4G Android Development] hayabusa1300cc:
http://xdaforums.com/showpost.php?p=10135016&postcount=482

I for one read every post with the new developments like this.

So I knew it was required. I know some people are impatient and like figure it out

on their own without reading. But that isn't me.
[Epic 4G Android Development] pjames:
I was getting good battery life with 2.1 but im getting super excellent battery life with 2.5
[Epic 4G Android Development] mrhocuspocus:
This rom is amazing!

I have one huge issue though in the game "touch the numbers" is it the rom (disabled ads perhaps) that is breaking screen name saving and global scoreboards? or did the devs upload a borked update to this game? does anyone have an older apk for this game?

Also how do i get rid of the bubble style text messages, personally I feel like its played out and prefer the stock look of them.
[Epic 4G Android Development] MysteryEmotionz:
Bbl mms is stock for froyo. Look in the theme section. A couple themes use the no bubble mms and theres also just the app floating around in there somewhere also
[Epic 4G Android Development] spf2722:
I am having some serious issues here. I completed the EXT4 steps, installed 2.5 and EXT4 Kernal, and rebooted phone. Could not get my 3G to connect, so I went back to CWM and rebooted to recovery to reflash 2.5, now CWM keeps restarting back to same screen, wont reboot into new recovery, nandroid wont work, when I restart I get stuck at the Samsung Screen. Will I be okay with doing a Odin restore to stock DK28?
[Epic 4G Android Development] spf2722:
Now every time I reboot the phone or reboot recovery, phone goes to CWM 2.5.1.0, I cant get out of it. Help.
[Epic 4G Android Development] MasterQu:
Is there a reason why I should or should not use set cpu app on this rom?
[Epic 4G Android Development] bondosho:
Just over 12 hours of moderate use, latitude on, facebook updating every 3 hours, and have 16% battery left. Best I've seen, and I haven't done any calibration.
[Epic 4G Android Development] kamakazi17:
Does this rom have Video out capabilities?
[Epic 4G Android Development] TheBurgh:
are you using the quick boot apk to get into the recovery. i have heard if you end up back in the 2.5.1.0 recovery you should hit the advanced option then the reboot recovery option and this will get you back into the 2.5.1.2 recovery.
[Epic 4G Android Development] boostedmr2:
Thank you so much I had that problem too. :)
[Epic 4G Android Development] J31Rob:
I don't know if this has been mentioned yet or not.. but RIGHT after installing the EXT4 files (moving over to the new CWM).. you install a ROM. DO NOT REBOOT or you'll go into a loop or freeze on the Samsung black screen.

Literally follow his instructions to a T.. don't think you need to reboot or do anything in between any of his steps. I made the mistake of rebooting when I was supposed to & had to Odin back to stock and do everything over again.. I see a lot of people having the same issue. I figured I'd speak on it.
[Epic 4G Android Development] Koadic:
Alright, I have a question(s). I dont know if it is a stupid question or not (I hope not), as I try to read as much as I can before doing anything or asking questions. I consider myself fairly intelligent, but when it comes to certain subjects, like android, linux, etc., I am sorely lacking in experience, and therefore lacking in information. But, I consider myself knowlegable enough to get out of trouble if/when required (essential when exploring new fields) which is why I am rarely the first to try something brand new, and why I am only now attempting to try this (most of the bugs have been worked out).

I regularly modify any rom I flash to my phone by pre-adding certain apps into the data and system folders, sometimes requiring a modification to the update-script if there is no data folder initially included in the rom, and in the case of DI18 roms, I would sometimes mix and match kernels depending on what I wanted. I am also the 'go to' guy for a couple of friends that also have epics, so the more knowledgable I can become, the better.

I am planning on converting my phone to ext4 and loading QR 2.5 and have reread the steps required a few times over. My question regards the last step before rebooting... Is there a reason why the kernel (flashed at the end) cant be included in the rom and flashed along with everything else? Upon examining the rom.zip, in the kernel folder, there is a zimage and zimage.partext4, I dont see the zimage.partext4 referenced in the udate script at all, so I dont know exactly why it is there (again, lack of experience/information), but was wondering if the latest released kernel (dual ext4/rfs) zimage could just be dropped into the rom.zip and thus flashed in one step with the rom instead of an extra step.

Granted, it isn't that big of a deal, just one extra step at the end before rebooting, but the question is more of an informational one, as in I am 'just curious'.
[Epic 4G Android Development] Dameon87:
Yes. You can drop the dual fs kernel in. The other zimage was prolly an accidental leftover lol
[Epic 4G Android Development] Koadic:
Cool, thanks for the prompt reply :D Will make one less step to possibly forget and possibly necessitate extra work.
[Epic 4G Android Development] aggreyj:
Okay, so I was on Cyanogen Mod for the epic and I've run into some problems. Here's exactly what I've done so far:

1. Wiped my phone, installed Mammon since it says you should flash to a non Cyanogen before installing EXT4

2. Installed the Zip for EXT4 from the other thread

3. Tried to flash Quantum 2.5 - I this error:

E:Failure at line 3:

copy_dir PACKAGE:system SYSTEM:

Installation Aborted

I'm on ClockwordMod Recovery 2.5.1.0, also whenever I open Clockwork now I see an error right below stating

E:Can't open /cache/recovery/log

Any help would be appreciated