Develop Bugs

[REQ] CM6.1 with Data2ext

Hi all,
I have noticed a lot of sense roms getting the love with data2ext and I was wondering if anyone could cook a CM6.1 rom with it already set up.
I'm very noobish with stuff like this so I don't want to mess it up setting it up and I'm sure many others would appreciate this too.
Could I also suggest detailed instructions on how to achieve this too?
With so many different posts about data2ext it gets confusing pinpointing what people think is best. Should we use FAT32 or Ext 2/3/4?
I think it should be cooked using ext2/3/4 as that's what most people use that already use a2sd so would mean we wouldn't have to partition our cards again.
I think it would help us noobs

ownjoouk said:
Hi all,
I have noticed a lot of sense roms getting the love with data2ext and I was wondering if anyone could cook a CM6.1 rom with it already set up.
I'm very noobish with stuff like this so I don't want to mess it up setting it up and I'm sure many others would appreciate this too.
Could I also suggest detailed instructions on how to achieve this too?
With so many different posts about data2ext it gets confusing pinpointing what people think is best. Should we use FAT32 or Ext 2/3/4?
I think it should be cooked using ext2/3/4 as that's what most people use that already use a2sd so would mean we wouldn't have to partition our cards again.
I think it would help us noobs
Click to expand...
Click to collapse
Two things:
1. It's a .zip flash. Since you already know how to flash ROMs, it's not that hard, is it?
2. The tech is not stable, so any dev worth his coffee/alcohol/salt won't include it in his build.

Thanks for the attitude. It's people just like you that this site needs.

ownjoouk said:
Thanks for the attitude. It's people just like you that this site needs.
Click to expand...
Click to collapse
i agree with both of you on the attitude. the search works well although sometimes search alone doesnt help as good as user feedback. in this case ive been searching for data2ext because ive been using the a2sd on my sig except i like trying new things. i came accross what your looking for i think. http://forum.xda-developers.com/showthread.php?t=864174
scroll down and it seems like someone made a cm6.1+data2ext. i think that is what your asking. just thought id post.

Is Apps2sd really worth the trouble?

Besides the obvious free up of local space on the EVO, what are other advantages of setting up apps2sd? I am running MIUI and would like to give it a shot if worth it. Thanks in advance.
PS. My name is HondaCop and I approve this message.

I ran it for a while, had my card partitioned and everything, the zipalign bonus is fantastic but that's about it, I formatted my card recently and haven't looked back to set it back up
if you has class 10 then go for it, my class 6i didn't notice much improvement, class 2 dont bother

NewZJ said:
I ran it for a while, had my card partitioned and everything, the zipalign bonus is fantastic but that's about it, I formatted my card recently and haven't looked back to set it back up
if you has class 10 then go for it, my class 6i didn't notice much improvement, class 2 dont bother
Click to expand...
Click to collapse
I've got an 8GB Class 6 card. I think I will not mess with it for now, seeing that performance wise there isn't much to be gained. Thanks for your response, buddy.
PS. My name is HondaCop and I approve this message.

Which applications to sdcard?
I tried both. I'm now with a2sd from darktremore.
It has many nice features, like zip align and cache relocate.
I had my apps2sd (file based) continuously loose the symlink pointers. May be fixed now ?
I tried it a2sd on my hero and haven't looked back. I do run a class 10 sdcard. For power consumption . Class 4 would probably have been adequate. Good luck in which ever you choose.

willy900wonka said:
Which applications to sdcard?
I tried both. I'm now with a2sd from darktremore.
It has many nice features, like zip align and cache relocate.
I had my apps2sd (file based) continuously loose the symlink pointers. May be fixed now ?
I tried it a2sd on my hero and haven't looked back. I do run a class 10 sdcard. For power consumption . Class 4 would probably have been adequate. Good luck in which ever you choose.
Click to expand...
Click to collapse
Yea, I prefer a2sd from darktremor as well for its nice features. I'm just wondering what are the advantages performance wise by having all apps and dalvik cache on the sdcard other than the obvious gain of space on the phone.
PS. My name is HondaCop and I approve this message.

I think that it's just for space. Some say it's better to leave the dalvick on the phone but I really need the space so I move it anyway and it seems to work OK even on class 4.
What I'm not sure about is how Titanium backup treats the apps that have been moved... do they back up correctly or not? Right now I'm having problems with apps that I restored using Titanium backup (they won't update); but that's after moving to a different ROM than the one I used previously.
I'm also not sure why some programs still appear with the option to "Move to SD card" under manage applications. Shouldn't have they already been moved automatically by app2sdext?

Wayno-san said:
I think that it's just for space. Some say it's better to leave the dalvick on the phone but I really need the space so I move it anyway and it seems to work OK even on class 4.
What I'm not sure about is how Titanium backup treats the apps that have been moved... do they back up correctly or not? Right now I'm having problems with apps that I restored using Titanium backup (they won't update); but that's after moving to a different ROM than the one I used previously.
I'm also not sure why some programs still appear with the option to "Move to SD card" under manage applications. Shouldn't have they already been moved automatically by app2sdext?
Click to expand...
Click to collapse
If I'm not mistaken, dt app2sdext works by fooling android that the ext partition is in fact the phone storage itself, hence why some apps show the option move to sd, android believes the apps are on main memory...
hope this helps!

Wayno-san said:
I think that it's just for space. Some say it's better to leave the dalvick on the phone but I really need the space so I move it anyway and it seems to work OK even on class 4.
What I'm not sure about is how Titanium backup treats the apps that have been moved... do they back up correctly or not? Right now I'm having problems with apps that I restored using Titanium backup (they won't update); but that's after moving to a different ROM than the one I used previously.
I'm also not sure why some programs still appear with the option to "Move to SD card" under manage applications. Shouldn't have they already been moved automatically by app2sdext?
Click to expand...
Click to collapse
DTa2sd uses symlinks, so there is no ill effect on TB whatsoever. I have been running DTa2sd for a few months and I have nothing but good to say about it. I had one issue and it turned out to be user error (me being that user LOL.)
And for Honda, I can't quantify any impact on performance, but I unquestionably noticed a snappier performance and stability improvement after moving my dalvik to my cache partition, not to mention having almost 300 apps and still a ton of free space. As for being worth the trouble, I guess I would ask what trouble? The process was simple as can be, so yes, definitely it is worth the effort.
Also I disagree with the second post, I have a15GB class 2 and I'm still seeing benefits. Of course when I use the SD test app, it almost always shows up as a class 4 or 6. That could be a product of a2sd or MIUI as the same test shows class 2 on Evio2. YMMV
Sent from my PC36100 using XDA App

Just_s said:
And for Honda, I can't quantify any impact on performance, but I unquestionably noticed a snappier performance and stability improvement after moving my dalvik to my cache partition, not to mention having almost 300 apps and still a ton of free space. As for being worth the trouble, I guess I would ask what trouble? The process was simple as can be, so yes, definitely it is worth the effort.
Click to expand...
Click to collapse
So you have a cache partition plus an ext partition on your Sd Card? If so, how big does the cache partition have to be for dalvik to fit?
I saw a number of comments NOT to create a cache partition on the SD card for done reason so I did not.
I re-flashed MikFroyo 4.5 AFTER setting up the EXT partition and it looks like everything got setup automatically this time around. It's been running great! The nice thing is that it doesn't screw up widgets like Froyo app2sd.

on miui all you have to do is format the sd card properly. The rom has the rest built in.

Will Apps2SD allow one to wipe and install a new ROM and not have to use Ti backup to reinstall all of the apps?

More than likely not, since many ROMS do not support dta2sd. I would just stick with TB since you can specifically restore the apps you need/want

It was my understanding that if under settings/applications, you don't 'move to sd' any apps, then by default dt a2sd will automatically install/move all apps to the ext3 partition (sd).
Conversely, if you restore an app using TI that was not originally moved to sd (using standard froyo apps2sd function), and if dt a2sd is still installed and configured for all apps to go to sd, then that app will be restored back to the dt a2sd on the ext3 partition.
Please read above carefully before responding.

So you have a cache partition plus an ext partition on your Sd Card? If so, how big does the cache partition have to be for dalvik to fit?
I saw a number of comments NOT to create a cache partition on the SD card
Click to expand...
Click to collapse
No, have small swap and 960mb ext3. Once a2sd is on, use one of the dalvik move commands.
I know people are always recommending this or that on here (don't use havs, don't use sbc, clockwork is not thorough, don't move dalvik, blah, blah, blah). My stance is: nandroid and give it a go, but that's just me.
Sent from my PC36100 using XDA Premium App

Whether it's worth it or not is up to the individual. Everybody's gonna be a little different in how they use their phone. The sacrifice you're making is that reading from SD is slower than reading from internal memory. How much slower in real world situations? I honestly couldn't tell you, as I haven't actually tried it. I've found if I'm even getting close to running out of internal memory for apps, it means I've become an "app pack rat". So I simply clean house of all the stuff I downloaded cuz it seemed cool, but never actually used. Then again, I also don't have a ton of games, which are some of the largest apps. With a class 6 or 10 card, I'd imagine the difference would be minimal though, so if you need the room, and are willing to give up a little bit of speed, try it. You can always go back.

live2ride96 said:
Whether it's worth it or not is up to the individual. Everybody's gonna be a little different in how they use their phone. The sacrifice you're making is that reading from SD is slower than reading from internal memory. How much slower in real world situations? I honestly couldn't tell you, as I haven't actually tried it. I've found if I'm even getting close to running out of internal memory for apps, it means I've become an "app pack rat". So I simply clean house of all the stuff I downloaded cuz it seemed cool, but never actually used. Then again, I also don't have a ton of games, which are some of the largest apps. With a class 6 or 10 card, I'd imagine the difference would be minimal though, so if you need the room, and are willing to give up a little bit of speed, try it. You can always go back.
Click to expand...
Click to collapse
Excellent commentary, a lot of common sense

[Q] Low memory space on HTC Desire

I've just made a fresh install of android 2.3.3 but the phone keeps saying I have low memory (<20MB) on it. I've used app2sd to place ALL of the apps on the SD but no help still. I've tried some forums allready but I still have no idea how to fix this. Sometimes it can't even open my sms as it says the problem again is memory low.
If anyone can redirect me to some page or forum where this is resolved, or help me solve the problem.
Really sorry for taking your time if the solution is easier to find on google than I thought but I had no luck finding it.
Thanks in advance.
Other info: s-off-ed, android installed from http://htcdev.com/devcenter/downloads , for any other info just ask.
Also SD is 4gb.

With app2sd you will be able to move apps to SD (FAT32-partition) if the developer of the app included this feature. So I recommend to partiton your SD card with a FAT32 and an EXT4-partition with at least 1 GB (partition either with GParted or your recovery, if it supports it) and flash an A2SD+ or a DATA2SD-script via recovery.

check out supernova rom by droidzone. it gives unlimited internal memory.

+1 on supernova, works great!
Sent from my HTC Desire using XDA App

+1 for Sebs Runny mede 4.0.2.se but you need s-off and cm7/r2 with A2sdsx for unlimited (almost) space and a lovely fast ROM ta boot!
Sent with Desire.

angusc said:
+1 for Sebs Runny mede 4.0.2.se but you need s-off and cm7/r2 with A2sdsx for unlimited (almost) space and a lovely fast ROM ta boot!
Sent with Desire.
Click to expand...
Click to collapse
I agree Sebs Runny Mede 4.0.2.SE - super fast and stable but only if you use have CM7/R2 with A2SDSX. I have my ext 4 partition set to 1.5 GB and after install show 1 GB of internal memory for APPS. - WOW !

Thanks but I'm really keen on keeping this version of android on. I was actually wondering what could be causing this problem of low memory space as there is almost no apps on the device (I've moved everything to SD).
Could my problem be that I haven't formatted the device while I was reinstalling android or something????
So how can I solve the problem within this OS?
I can't believe that the internal disk is full when I have nothing on it. Could sms and e-mail really take that much space as I see only those two could be making the problem.
My phone says that there is 137mb used and 11free since I've installed the new OS. I thought the internal drive should be larger than that.
Really if there is no other way of solving this I might be willing to install the supernova but I'm really hoping there's some easier way.

grim2008 said:
Thanks but I'm really keen on keeping this version of android on.
Click to expand...
Click to collapse
Then you have to live with it.
I was actually wondering what could be causing this problem of low memory space
Click to expand...
Click to collapse
This problem of low memory space is, simply said, a problem of low memory space.
Really if there is no other way of solving this I might be willing to install the supernova but I'm really hoping there's some easier way.
Click to expand...
Click to collapse
Yep, there is an easier way: Seb's Runnymede AIO 4.0.3
Ok, seriously: Rooting and flashing is not that hard and worth the effort - but I would highly recommend Seb's Runnymede over Supernova, too, as it's way more smooth than Supernova, which was extremely laggy - at least on my Desire.
Greets, Magpie
P.S.: Your SD card should be at least Class 6 (and max. 16 GB).

Magpie42 said:
but I would highly recommend Seb's Runnymede over Supernova, too, as it's way more smooth than Supernova, which was extremely laggy - at least on my Desire.
Click to expand...
Click to collapse
OK, I was reading your posts in a few threads and now I see for sure you have no clue what are you talking about.
SwiftKeyed from my HTC Desire using XDA App.

erklat said:
OK, I was reading your posts in a few threads and now I see for sure you have no clue what are you talking about.
Click to expand...
Click to collapse
Ah, please enlighten me, how you know.
Greets, Magpie

Magpie42 said:
Ah, please enlighten me, how you know.
Greets, Magpie
Click to expand...
Click to collapse
If daily threads about smoothness and stability poping under Q&A couldn't enlighten you, I can hardly imagine there is anything I can do about that.
SwiftKeyed from my HTC Desire using XDA App.

erklat said:
If daily threads about smoothness and stability poping under Q&A couldn't enlighten you, I can hardly imagine there is anything I can do about that.
Click to expand...
Click to collapse
But you could at least try - or tell my Desire about these wonderful threads, which will make it run faster. And these threads, which will void my own experiences, the ones, I've seen with my non enlightened eyes ... at least they are mine.
Greets, Magpie - just own experiences count
P.S.: You may have heard already that there are a couple of different hardware combinations out there. And perhaps my Desire is on the slow side and probably my combination of phone and card may not be the fastest around, but, nevertheless, a phone/card, being on the laggy side, is an even better meter for the performance of a ROM than a phone/card which is fast anyway and will run at lightspeed with even a croppy ROM.

grim2008 said:
Thanks but I'm really keen on keeping this version of android on. I was actually wondering what could be causing this problem of low memory space as there is almost no apps on the device (I've moved everything to SD).
Could my problem be that I haven't formatted the device while I was reinstalling android or something????
So how can I solve the problem within this OS?
I can't believe that the internal disk is full when I have nothing on it. Could sms and e-mail really take that much space as I see only those two could be making the problem.
My phone says that there is 137mb used and 11free since I've installed the new OS. I thought the internal drive should be larger than that.
Really if there is no other way of solving this I might be willing to install the supernova but I'm really hoping there's some easier way.
Click to expand...
Click to collapse
Mate...as far as I can understand your issue, you do not want to change your Stock ROM but would want a space.....which I think would be a bit impossible somehow.....I mean, Come On...these guys are suggesting Great Solutions to your problem...the answer is in front of your eyes...if you're not into it then magic will most probably help you out..
So what would it be??

[Q] New owner. Camera mod? Compass? etc.

Hi,
I got my HTC One V a few days ago, but I will not hold it in hands before end of month. Still, I would like to prepare already, so I have a few questions.
* there is a camera mod for the HTC One X. Can this be applied to the One V as well? If not, are there any developments going on? Basically they turn of compression, afaik.
* I heard there is no compass? Damn, if so! I really had hoped, that it has all the basics, just not in the top hardware category. Can this be substituted? I mean, it has GPS, so it should be able to show N,S,E,W?
* What are good mods? Total conversions, even. Are there high capability mods, that keep Sense? I am not interested in mods, that add themes and stuff like that. I am interested in mods, that go deep technical, enhancing battery-life, freeing up flash memory, etc.
* Is it true, that there is close to no memory for installation of additional programs and one has to use an external SD card for most?
* I want to use the same data carrier SD cards on my Macbook and my Android. Things like MP3 and videos do not need to fill valuable notebook harddisk space. And this way I can exchange the cards and use them on both systems. What about filesystem? My Mac can read/write exFAT, NTFS, but no Linux filesystems. I have read, that reformatting an SD card is *not* good, since the error correction has been set up for the filesystem on it by the manufacturer. So, ideally, I'd get exFAT formatted SD cards. Can Android read/write them? If not, what do I need? Any mods?
That's it Hope you can help. Thanks!
Andreas

zmix said:
Hi,
I got my HTC One V a few days ago, but I will not hold it in hands before end of month. Still, I would like to prepare already, so I have a few questions.
* there is a camera mod for the HTC One X. Can this be applied to the One V as well? If not, are there any developments going on? Basically they turn of compression, afaik.
* I heard there is no compass? Damn, if so! I really had hoped, that it has all the basics, just not in the top hardware category. Can this be substituted? I mean, it has GPS, so it should be able to show N,S,E,W?
* What are good mods? Total conversions, even. Are there high capability mods, that keep Sense? I am not interested in mods, that add themes and stuff like that. I am interested in mods, that go deep technical, enhancing battery-life, freeing up flash memory, etc.
* Is it true, that there is close to no memory for installation of additional programs and one has to use an external SD card for most?
* I want to use the same data carrier SD cards on my Macbook and my Android. Things like MP3 and videos do not need to fill valuable notebook harddisk space. And this way I can exchange the cards and use them on both systems. What about filesystem? My Mac can read/write exFAT, NTFS, but no Linux filesystems. I have read, that reformatting an SD card is *not* good, since the error correction has been set up for the filesystem on it by the manufacturer. So, ideally, I'd get exFAT formatted SD cards. Can Android read/write them? If not, what do I need? Any mods?
That's it Hope you can help. Thanks!
Andreas
Click to expand...
Click to collapse
From the beggining then, if you need them in native language PM me
-Camera mod - not known as of now afaik.
- Yes, there is no compass (for why, don't ask) but there is gps, but isn't that precise, and you need to move for it.
-Because the phone is new, there really not much mods available. The phone didn't get the full sense 4.0 (just a lite version). There are CM9 advancements, which will be particulary good if you ask me, the development for now is at the stock enhancig, for the use of vanilla, but full sense is on way too. Battery life for me is at 3-4 days, with wifi on all the time, and mobile net for ~2-3hrs per day. (yes, stock)
-There is 1 gig for apps, so I don't think it is that much of a problem.
-Android can read exFAT at the SD (and requires it afaik), but when you change the SD there will be no signal for wifi and gsm (antennas on the backplate which is needed for SD change).
As far as I know mac can read/write the basic lixus fs-s (ext 2,3,4) but if not, there is a mod for it, but you don't need that, given the fact android uses the SD card as exFat.

Ken-Shi_Kun said:
From the beggining then, if you need them in native language PM me
-Camera mod - not known as of now afaik.
- Yes, there is no compass (for why, don't ask) but there is gps, but isn't that precise, and you need to move for it.
-Because the phone is new, there really not much mods available. The phone didn't get the full sense 4.0 (just a lite version). There are CM9 advancements, which will be particulary good if you ask me, the development for now is at the stock enhancig, for the use of vanilla, but full sense is on way too. Battery life for me is at 3-4 days, with wifi on all the time, and mobile net for ~2-3hrs per day. (yes, stock)
-There is 1 gig for apps, so I don't think it is that much of a problem.
-Android can read exFAT at the SD (and requires it afaik), but when you change the SD there will be no signal for wifi and gsm (antennas on the backplate which is needed for SD change).
As far as I know mac can read/write the basic lixus fs-s (ext 2,3,4) but if not, there is a mod for it, but you don't need that, given the fact android uses the SD card as exFat.
Click to expand...
Click to collapse
excuse me??? is that all the deving thats going on right now? Stock enhancing........ there is also a useable CM9 alpha

Lloir said:
excuse me??? is that all the deving thats going on right now? Stock enhancing........ there is also a useable CM9 alpha
Click to expand...
Click to collapse
Full sense is also available by djpbx...also stock enhancing is a very imp part...also cm9 is quite usable except WiFi (
Sent from my HTC One V Running SuPrimo v4.1(28/6/12)

Ken-Shi_Kun said:
From the beggining then, if you need them in native language PM me
Click to expand...
Click to collapse
Szervusz, for the first moment I was wondering what you could mean. Then I saw the flag, lol. :highfive:
-Camera mod - not known as of now afaik.
- Yes, there is no compass (for why, don't ask) but there is gps, but isn't that precise, and you need to move for it.
Click to expand...
Click to collapse
These things just...suck
Thanks for your reply. I had really hoped to have found a Smartphone with a sub 4" screen, that has no compromises, except front facing camera, which I do not need, but lack of compass and unprecise GPS is just bad :-( I just hate those big screens.
P.S. Szabad megkérdeznem hogy milyen szolgáltatónál vagy? És milyen szerződéssel? Feltöltős vagy elöfíz? Mert én még nem igazából tudom hogy milyet válasszak. Thx.

zmix said:
Szervusz, for the first moment I was wondering what you could mean. Then I saw the flag, lol. :highfive:
These things just...suck
Thanks for your reply. I had really hoped to have found a Smartphone with a sub 4" screen, that has no compromises, except front facing camera, which I do not need, but lack of compass and unprecise GPS is just bad :-( I just hate those big screens.
P.S. Szabad megkérdeznem hogy milyen szolgáltatónál vagy? És milyen szerződéssel? Feltöltős vagy elöfíz? Mert én még nem igazából tudom hogy milyet válasszak. Thx.
Click to expand...
Click to collapse
Telenor / djuice with contract for 2 years (2 év rabszolgaság bónusz programban, plusz kis kedvezmény mert sok kártya van a nevemen).
The GPS is quite precise, I think at least., I don't really need the compass.
Lloir
Don't meant to insult anyone. The phone is basicly too new, and there has been quite big leaps in development in the last days, so I'm quite eager for news here .

Ken-Shi_Kun said:
Telenor / djuice with contract for 2 years
Click to expand...
Click to collapse
Allright. Thank you. Will check them out, too. I do not talk much, I do more internet. But most are about much talking and little 'netting. The internet options are mostly a joke with all of the providers and the extras just way too expensive. Well, what can we do...?!

[Q] (Request) Multiboot

There is a multiboot option for Galaxy S4
http://forum.xda-developers.com/showthread.php?t=2417600
Can anyone port it to Grand?
This would be quite helpful if we want to dual boot TW and other roms without dual sim functionality

vinaychandra said:
There is a multiboot option for Galaxy S4
http://forum.xda-developers.com/show....php?t=2417600
Can anyone port it to Grand?
This would be quite helpful if we want to dual boot TW and other roms without dual sim functionality
Click to expand...
Click to collapse
Iam on ur side .... I really wanted DAT ..... Developers must be interested in this ......
Sent from my GT-I9500 using XDA Premium 4 mobile app

Good thought bro
Sent from my GT-I9082 using xda app-developers app

S4 has vast internal memory my friend so multiboot can handle the storage in our case it's beter to have single boot cuz we have less ram less internal and even less processing speed comparing to S4
Sent from my GT-I9082 using Tapatalk

Grand only has 8GB internal, how do you expect 2 ROMs to fit inside such a small memory? By doing so, you will decrease the storage space of application apk/data.

naufalhadyan said:
Grand only has 8GB internal, how do you expect 2 ROMs to fit inside such a small memory? By doing so, you will decrease the storage space of application apk/data.
Click to expand...
Click to collapse
Haaa 8 GB? I only have 4 GB
Sent from my GT-I9082 using Tapatalk

black87 said:
Haaa 8 GB? I only have 4 GB
Sent from my GT-I9082 using Tapatalk
Click to expand...
Click to collapse
That's the thing. from 8GB storage, 4GB is used by the Android OS to allocate its different partitions (data, system, cache etc.) and the rest is used by the user (sdcard0). Installing 2 different OSes will left you with 1GB or less user-usable storage. This may be more feasible on a phone with 16/32GB internal storage.

exactly that's what I said.... ur mobile will only get slower by doing this... It's not a laptop and doesn't have that much power to sustain two os-es at the same tym
Sent from my GT-I9082 using Tapatalk

@vinaychandra why have you posted two same threads in the same section asking the same question

Ateekujjawal said:
@vinaychandra why have you posted two same threads in the same section asking the same question
Click to expand...
Click to collapse
Sorry. One of the posts was actually in Themes and Apps. But I dont know how to change it into Q & A and thus created another thread here. Meanwhile someone else has shifted the other thread here. And hence two threads.

naufalhadyan said:
Grand only has 8GB internal, how do you expect 2 ROMs to fit inside such a small memory? By doing so, you will decrease the storage space of application apk/data.
Click to expand...
Click to collapse
Fitting the roms inside that memory is not a huge problem. 4gb or 3gb is lot more than sufficient for one more rom excluding the current TW rom. But when it comes to apks, we can always use a mount on ext-sd. So decreasing the storage space of app data is not a problem.

shanbhagatul said:
exactly that's what I said.... ur mobile will only get slower by doing this... It's not a laptop and doesn't have that much power to sustain two os-es at the same tym
Sent from my GT-I9082 using Tapatalk
Click to expand...
Click to collapse
Sorry, but do you have any idea that multiple os doesn't require extra computational power?
They are run one at a time and never at the same time. So there is no meaning of "sustaining" as in running multiple applications at the same time.

vinaychandra said:
Sorry, but do you have any idea that multiple os doesn't require extra computational power?
They are run one at a time and never at the same time. So there is no meaning of "sustaining" as in running multiple applications at the same time.
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You are absolutely right about the fact that it wouldn't require extra computational power, so the CPU/RAM is not the issue.
vinaychandra said:
Fitting the roms inside that memory is not a huge problem. 4gb or 3gb is lot more than sufficient for one more rom excluding the current TW rom. But when it comes to apks, we can always use a mount on ext-sd. So decreasing the storage space of app data is not a problem.
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The TW ROM is generally 700+Mb in size and grows over a 800-900Mb after installation and initialization. And the AOSP ROM is about 200Mb plus 130Mb of GApps take up about 330Mb and would grow to say 400Mb. But you would need busybox for sure, so add 300 Mb to that. Bringing the total of AOSP ROM to around 700 Mb and TW to 1.2Gb. This is just the /system folder.
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(/system folder on Resurrection 4.4.2 with bloat-wares removed and complete busybox installed)
If you consider the /data folder for the application data, installing only a handful of applications and using them brings the size close to 1.5-2Gb WITHOUT installing any games. This isn't the apk size, but their libs and data combined. This is same for both TW and AOSP.
(/data folder with /data/app containing 55 user applications sized at 304Mb, no games)
So essentially we would need about 4 GB just for /data folders
Most of this data can be moved to ext-SD but would need scripts and SWAP kernel support.
And with dual boot it won't be an option but a necessity, because with our device's storage it won't be possible to have two data folders without running out of memory on a near-clean install of the two ROMs.
So my opinion is, Dual Boot should be possible for our device but would be really unwise to do it with 4Gb internal space since it would make the device completely dependent on Mounting the data folder on to the external card.

iceyhotguy said:
You are absolutely right about the fact that it wouldn't require extra computational power, so the CPU/RAM is not the issue.
The TW ROM is generally 700+Mb in size and grows over a 800-900Mb after installation and initialization. And the AOSP ROM is about 200Mb plus 130Mb of GApps take up about 330Mb and would grow to say 400Mb. But you would need busybox for sure, so add 300 Mb to that. Bringing the total of AOSP ROM to around 700 Mb and TW to 1.2Gb. This is just the /system folder.
View attachment 2551906 (/system folder on Resurrection 4.4.2 with bloat-wares removed and complete busybox installed)
If you consider the /data folder for the application data, installing only a handful of applications and using them brings the size close to 1.5-2Gb WITHOUT installing any games. This isn't the apk size, but their libs and data combined. This is same for both TW and AOSP.
View attachment 2551905 (/data folder with /data/app containing 55 user applications sized at 304Mb, no games)
So essentially we would need about 4 GB just for /data folders
Most of this data can be moved to ext-SD but would need scripts and SWAP kernel support.
And with dual boot it won't be an option but a necessity, because with our device's storage it won't be possible to have two data folders without running out of memory on a near-clean install of the two ROMs.
So my opinion is, Dual Boot should be possible for our device but would be really stupid to do it with 4Gb internal space since it would make the device completely dependent on Mounting the data folder on to the external card.
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That is a good one. But I have this idea. Please change me if I am wrong.
The thread actually says it requires 1 GB of free space for second rom.
App sharing is supported between ROMs. Thus another factor "installing apps on both" may go down.Even Data Sharing between roms (experimrntal) SWAP kernel support is already given for some kernels posted in development section.
Most of us use an ext-sd card. So using it for a few hundred MB may no be a problem both for devs and users.
But on the flip side consider the biggest advantage over many other communities. We can use both dual sim and also have an experience at a distance of just a reboot.
I agree that we are going to rest a lot on the ext-sd. But given the advantages and possibilities we have, in my opinion, it is worth everything.

vinaychandra said:
That is a good one. But I have this idea. Please change me if I am wrong.
The thread actually says it requires 1 GB of free space for second rom.
App sharing is supported between ROMs. Thus another factor "installing apps on both" may go down.Even Data Sharing between roms (experimrntal) SWAP kernel support is already given for some kernels posted in development section.
Most of us use an ext-sd card. So using it for a few hundred MB may no be a problem both for devs and users.
But on the flip side consider the biggest advantage over many other communities. We can use both dual sim and also have an experience at a distance of just a reboot.
I agree that we are going to rest a lot on the ext-sd. But given the advantages and possibilities we have, in my opinion, it is worth everything.
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Umm, the link in your first post seems to be broken, but I just looked at the thread.
http://forum.xda-developers.com/showthread.php?t=2417600
Yes the thread does say 1GB free with everything (GApps and ROM) accounted for, like I mentioned above and that app sharing and data sharing is being supported, so that would bring the memory pressure down.
But you have to consider that simply making dual boot available would take a lot of time and effort, but porting the whole experimental concept of app and data sharing between two ROMs would be a lot of work.
I personally don't need the second SIM slot and I hate TW look, not to mention I prefer not using mounting scripts to ext-sd, causes instability and reduces performance speed in my opinion.
But yea for those who absolutely need dual-sim and want to try using AOSP ROMs having dual support would be really good, if some developer is willing to work on it. I think Multiboot is out of the question but dual boot should work with our current memory if users don't mind compromising a good part of their memory card space to the Android OS.
By the way, I checked xenon92's, TripRex's as well as both k2wl's kernels, none of them list SWAP support but yea it can be done.

iceyhotguy said:
Umm, the link in your first post seems to be broken, but I just looked at the thread.
http://forum.xda-developers.com/showthread.php?t=2417600
Yes the thread does say 1GB free with everything (GApps and ROM) accounted for, like I mentioned above and that app sharing and data sharing is being supported, so that would bring the memory pressure down.
But you have to consider that simply making dual boot available would take a lot of time and effort, but porting the whole experimental concept of app and data sharing between two ROMs would be a lot of work.
I personally don't need the second SIM slot and I hate TW look, not to mention I prefer not using mounting scripts to ext-sd, causes instability and reduces performance speed in my opinion.
But yea for those who absolutely need dual-sim and want to try using AOSP ROMs having dual support would be really good, if some developer is willing to work on it. I think Multiboot is out of the question but dual boot should work with our current memory if users don't mind compromising a good part of their memory card space to the Android OS.
By the way, I checked xenon92's, TripRex's as well as both k2wl's kernels, none of them list SWAP support but yea it can be done.
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I do not know in detail how porting works, but I want to know a few things.
Considering both S4 and Grand are from samsung, they may follow the same boot patterns and other things which could make it easy to port. I know that both hardwares are different and may pose a problem.
Data and app sharing may be a bit easy (again, i dont know for sure) because 'both are samsung' and may not require too much code changes because it is more on software side rather than on the hardware side.
Dual sim usage is one of the most desired functionality of the Grand community although many of us hate TW run. There is no other go currently for Touchwiz for using this feature.
Mounting scripts to ext-sd reduces performance speed but can become tolerable by using Class 10 sd cards.
I agree that multiboot is really out of question but Dual boot? I think many of us prefer it. This might take some time, but creating it could make this one of the best developments of the Galaxy Grand device. :good:

vinaychandra said:
I do not know in detail how porting works, but I want to know a few things.
Considering both S4 and Grand are from samsung, they may follow the same boot patterns and other things which could make it easy to port. I know that both hardwares are different and may pose a problem.
Data and app sharing may be a bit easy (again, i dont know for sure) because 'both are samsung' and may not require too much code changes because it is more on software side rather than on the hardware side.
Dual sim usage is one of the most desired functionality of the Grand community although many of us hate TW run. There is no other go currently for Touchwiz for using this feature.
Mounting scripts to ext-sd reduces performance speed but can become tolerable by using Class 10 sd cards.
I agree that multiboot is really out of question but Dual boot? I think many of us prefer it. This might take some time, but creating it could make this one of the best developments of the Galaxy Grand device. :good:
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The fact that both are Samsung only helps to vendor specific code which is not that much, but majorly both kernels are based on android code, using linux and java.
The thing about kernels is that even though both might be programmed similarly, they would have significant differences, because a kernel is an interactive software that decides how the AndroidOS uses the hardware. That's why all kernels are hardware specific.
Regarding data and app sharing, I'm not sure how they are doing that or what code they are using to limit the apps so I can't comment on how it's gonna be for us. That's something the developer who decides to look into this for our device will tell.
No, currently only TW based ROMs are supporting dual SIM till we have broadcomm drivers in open-source or CM team successfully implements their own.
I am using a class 10 card, and most members here already do too. Performance difference is always gonna be there because it's data sharing between two different storage devices (internal memory and external) instead of one. And yea class 10's higher read/write speed should make it tolerable but there will always be lag every now and then because your ext-SD will always be mounted and will be accessed as OS extension as well as a storage space

vinaychandra said:
Sorry. One of the posts was actually in Themes and Apps. But I dont know how to change it into Q & A and thus created another thread here. Meanwhile someone else has shifted the other thread here. And hence two threads.
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I was ask moderator to move your thread
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