yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy S (4G Model)] ChadBFlores:
hi, I noticed under the portal there was a way to increase ram size- here But it said it was for the galaxy y, and I checked the guide, it looked like it would work. Can anyone confirm that this would work?

Thank You! :)
[Samsung Galaxy S (4G Model)] Fluidification:
it can be done, i did it on my G1, so i'm familiar with the process.

The problems,

Our phone is really too fast to have any noticeable effect from swap

it really screws up your sd card. (now that i think about it, that might be what killed my G1, not a broken sd reader.)

The Phone won't boot without sd card (experiences)
[Samsung Galaxy S (4G Model)] ChadBFlores:
alright thanks, btw nice new logo
[Samsung Galaxy Nexus] allenmkelso:
I come from sense (EVO 3D) and while stock android ICS is quick and beautiful its music widget is dull and basic..Im looking for something like the sense 4×4 music widget.. With added options to play previous track, shuffle and repeat right from the widget..that's compatible with google music (fan boy ;) )..any suggestions
[Samsung Galaxy Nexus] wyattyoss:
I don't think anything but stock supports Google Music yet. More options will/may be available if/when Google makes the Google Music APIs public.
[Galaxy S II Q&A, Help & Troubleshooting] g00ndu:
Nice. Great for people who are not sure how they going to set up their dual boot option.

Edit: What about mounts and options, where you need to format the /secondrom_cache, /secondrom_system and /secondrom_data when you try to setup the very first time? If this step is not taken, you won't be able to have the option to choose either 1st or 2nd rom. Only subsequent reflashing of 2nd rom, then you just need to wipe 2ndrom cache and data.

Unless Gokhanmoral had changed his kernel, I think this is the most important part.

Please correct me if I am wrong.
[Galaxy S II Q&A, Help & Troubleshooting] jav92:
Nice tutorial, very clear...

One question: I want to dual boot to a stock ICS rom for use a MHL adapter (resurrection remix dont support it as most of the AOSP/AOKP roms)... appart of that, what uses can you give to dual boot?? I cant imagine more!
[Galaxy S II Q&A, Help & Troubleshooting] DJBoxer:
whats wrong with this guide which is in the first post of siyah thread if people fail to read the faq prior to doing this instructions are pretty easy anyways even tho your guide is more clearer and pretty lol and you have taken the time to do this you will still get the some old questions beening asked lol.

anyways best wishes to you ;)
[Galaxy S II Q&A, Help & Troubleshooting] OGroteKoning:
Maybe it is time GM gets a section in XDA specifically for Siyah ... ;)
[Galaxy S II Q&A, Help & Troubleshooting] Many40:
It seems that kernel was changed recently. What I did for my current dual-booting (used Siyah 3.2.3 that time): Wiped data/cache and dalvik of 2nd rom and just flashed new rom from recovery. I didn't format any partitions and had no problems at all with possibility to choose a rom at boot. Regards
[Galaxy S II Q&A, Help & Troubleshooting] CoolsboyDroid:
Perhaps you can put in the GUIDE FAQ that step 9 doesn't flash the kernel image if present in the zip. (Assuming that it doesn't flash anything other than the /system and /data partitions :p correct me if I'm wrong)

The first time I used it I feared that I would mess up because I knew that the zip had the kernel img inside.
[Galaxy S II Q&A, Help & Troubleshooting] xptok6:
Good tutorial, thanks! :)
[Galaxy S II Q&A, Help & Troubleshooting] g00ndu:
What about the 1st time when you set up your dual rom? I remember that there were a few people who had written in saying they do not have the option of booting into the 2nd rom after following the method describe by the OP. :confused:
[Galaxy S II Q&A, Help & Troubleshooting] Many40:
Belive me I did only what I wrote to you. I did not format any partitions and had no problems at boot at all. (Boot option to choose 2nd rom has been available). To be sure I have asked this afternoon also droidphile (author of very helpful guide and experienced on this topic). This is his answer: http://xdaforums.com/showthread.php?p=26742671 Regards. Happy if helped.
[Galaxy S II Q&A, Help & Troubleshooting] Phistachio:
My intent was to make it even easier and more accessible/straightforward. My guide is meant for first timers, while that guide is more for people who have basic knowledge, which isn't always the case.

Replying to both of those quotes, wiping data/cache creates data.img and cache.img. GM did a great job on dual booting, now it requires fewer steps.
[Galaxy S II Q&A, Help & Troubleshooting] Catley:
Not booting second rom!

Hey there its a good tutorial but the problem is that its not booting the second rom! My primary rom is Resurrection Remix v2.0 and I want to dual boot Cyanogenmod 7.2.0 RC3 but I do everything and when I go to boot it and press the home button to boot into the second rom it just displays a blank screen with no boot animation. Any help would be appreciated!

Thank you!

Catley!:D
[Galaxy S II Q&A, Help & Troubleshooting] anupjohnmani:
Sweet...Siyah

Cool Tutorial...Been using dual ROMS on my GS2 for about a week now...works like a charm...gives a chance to try out all those cool customs ROMS...
[Galaxy S II Q&A, Help & Troubleshooting] Phistachio:
It's all in the FAQ/OP...
[Galaxy S II Q&A, Help & Troubleshooting] pippofiori:
I currently have VK 4.8 and I was wondering if it's possible to install a stock rom as secondary, XXLPW for istance.

Thanks
[Galaxy S II Q&A, Help & Troubleshooting] Many40:
Currently ICS Sammy and AOSP roms can be dual-booted so it's possible.

If you have .zip CWM flashable rom file:

1. Flash Siyah kernel

2. Flash your rom as 2nd from dual boot CWM menu

If you have .tar Sammy rom file:

1. Flash Siyah kernel

2. Clone 1st rom to 2nd

3. Flash Sammy rom as 1st rom from for example mobile odin - remember not to loose root so when you open rom .tar file then when all partitions are recognized change in odin stock kernel to Siyah.

4. Swap 1st and 2nd roms.
[Galaxy S II Q&A, Help & Troubleshooting] yakie996:
hello,

I want cm9 and the stock rom.. is it the same way to do it? just flash the stock rom as secondary??
[Galaxy S II Q&A, Help & Troubleshooting] Many40:
Yes, but a way to do that depends whether you have .tar or .zip rom file
[Galaxy S II Q&A, Help & Troubleshooting] darkzide79:
Great info and easy to follow, will give it a try and see the results
[Galaxy S II Q&A, Help & Troubleshooting] quijote1:
Hi,

I have Resurrection Remix 2.0 as my 1st ROM with Siyah 3.2.7.2. I'd like to add Slim ROM as a 2nd, but Slim comes with the Fluxi kernal as part of the zip. Will that screw things up?
[Galaxy S II Q&A, Help & Troubleshooting] sudo.sh:
First of all, big thanks to kernel's developers. Secondly, I suppose this feature can be useful for many situation. I tried this option purely out of curiosity. I'm no expert - could be mistaken. But notice that the second system is always draining battery faster. I tried different ROMs - the same results. Uses more memory (RAM), faster draining the battery, and is always have the problem with 3G/HSPA/HDSPA / etc. Flashed with native (Cellcom) modem that I use on first system w/o problem. Well, I suppose it's still great feature.
[Galaxy S II Q&A, Help & Troubleshooting] UltimateAnas:
Thanks, Great tutorial :D however instead of cloning 1st to 2nd and all that why don't they just wipe second rom data/cache then install zip to 2nd rom. That's a much simple and easier way? Just a thought but great tutorial!
[Galaxy S II Q&A, Help & Troubleshooting] neerajganga:
please dont quote the entire OP
[Galaxy S II Q&A, Help & Troubleshooting] cooladityarai:
I m on stock rooted rom with siyah kernel. I want to use miui as my 2nd rom. But now i m confused that ...if i a flash a zip having kernel then that will also replace the siyah kernel.....then the dual boot will be corrupted.....:confused::confused:

Edit:::: ah i got it ......the kernel zip will not be flashed. Is it true.....???
[Galaxy S II Q&A, Help & Troubleshooting] Many40:
Yes, you are right. As I confirmed earlier to someone - if you flash 2nd rom a kernel from this rom will not be flashed so you will be still on Siyah. Regards
[Galaxy S II Q&A, Help & Troubleshooting] Sygmasf:
yes, you can also flash dual boot ics / jb rom with the last version of siyah (v.3.5.2)
[Galaxy S II Q&A, Help & Troubleshooting] darkpepe:
Second rom not availabe after odin flash

Hi,

Just in case it happens to anyone else: Your second rom is not save inside the SD if you flash stock rom with odin and re-flash Siyah kernel again, Siyah will not recognize the existing files for second rom.

Forgot the three golden rules (Backup, Backup, Backup!).

Regards
[Galaxy S II Q&A, Help & Troubleshooting] doop:
Thank you for this Clear and Concise tutorial. I am now dual booting ICS and Jelly Bean.
[Galaxy S II Q&A, Help & Troubleshooting] Many40:
It's the known issue. You would have recognized this before if you red some more posts from this thread :) General rule - if you flash a rom as 1st one it overwrites /system folder of 2nd rom. Regards
[Galaxy S II Q&A, Help & Troubleshooting] darkpepe:
Well, why would be flashing with Odin any different, right? I was not cautious enough!
[Galaxy S II Q&A, Help & Troubleshooting] austick:
Thanks !
[Galaxy S II Q&A, Help & Troubleshooting] sanglxagdm:
a great guide. thank u
[Galaxy S II Q&A, Help & Troubleshooting] budsixz:
question

can i boot cm9 rc2 with cm10(alpha) version on i9100???

will it cause problems to d other rom??:confused:
[Galaxy S II Q&A, Help & Troubleshooting] Many40:
Siyah kernel ver 3.5.2 supports both CM9 and CM10. So yes, you can. If you have red OP of Suyah thread you would have known that.

BTW what do you mean by "if this cause problems to d other rom"?
[Galaxy S II Q&A, Help & Troubleshooting] budsixz:
thnks for d reply m a newbie just asking stupid questions sorry:o
[Galaxy S II Q&A, Help & Troubleshooting] timberwolf60:
You will enjoy the art of siyah as me.

Send via my GT I9100 using Tapatalk2, 1st ROM RR 2.6.1, 2nd ROM RR JB V3.0.1 with Siyah kernel 3.5.2.
[Galaxy S II Q&A, Help & Troubleshooting] reddead66:
from the above posts i see that cm9 and cm10 are supported by siyah....

but i still gotta ask just to be on safer side...

i am currently on stock 4.0.3 with siyah 3.5.2...

can i use the stock as primary and cm9 as secondary??
[Galaxy S II Q&A, Help & Troubleshooting] Many40:
Yes, just do it. It's definately safe for your phone and it definately will work. Enjoy.
[Galaxy S II Q&A, Help & Troubleshooting] leeomendes:
great guide, thanks!
[Galaxy S II Q&A, Help & Troubleshooting] leongohan:
Thanks a lot for the guide
[Galaxy S II Q&A, Help & Troubleshooting] murpheus:
Thank you

That was a really clear and helpful guide, i'm now running ICS and JB :victory:
[Galaxy S II Q&A, Help & Troubleshooting] pratici:
I folow this guide and finally i have 2 rom in my phone.

After last update i had some problem with siyah 3.5.2 (rom samsung + CM9) in the Samsung Rom.

So i use Siyah 3.4.1 (better for battery).

Sorry for my english

Thanks for support
[Galaxy S II Q&A, Help & Troubleshooting] Many40:
What problem did you have on Siyah 3.5.2 with stock rom?
[Galaxy S II Q&A, Help & Troubleshooting] vuvuxela:
i'm using 4.1 and stock sammy as my second rom.

i found that extweaks setting seems not applied to second rom, is it normal?

eg, i selected "battery" in CWM kernel setting, go into second rom extweaks it shows "normal".
[Galaxy S II Q&A, Help & Troubleshooting] aviral1990:
IS there any performance degradation with the phone overall or with the primary/secondary rom while dual booting? Like low 3d performance, lags, stutters etc. ?

Edit: Also, will it matter in any way if the secondary rom that i am going to install does not come with siyah kernel?

thanks..
[Galaxy S II Q&A, Help & Troubleshooting] Many40:
Don't worry. Yes, unfortunately it's "normal". Siyah at the time being can't reset ExTweaks profiles nor switch between them for 2nd rom from CWM recovery. It does only for the 1st rom. Extweaks profiles for each rom are stored separately in different folder. It's possible to switch from default profile to eg: battery for 2nd rom - when you booted to 2nd rom open ExTweaks app and change a profile. It will be saved when you reboot. Disadvantege of this is that you have to have paid version of ExTweaks app. Regards.

---------- Post added at 11:58 AM ---------- Previous post was at 11:51 AM ----------

1. I haven't noticed any performance degradation while dual-booting. (Maybe due to the fact that I don't play games so much:)). But this is what you should check by your own.

2. It doesn't matter because if you flash a rom as the 2nd, a kernel coming with this rom will not be flashed. Dual-booting=1kernel (Siyah) shared between 2 roms.

Regards.
[Galaxy S II Q&A, Help & Troubleshooting] aviral1990:
k thanks..gonna try it soon..but no overall performance degradation, right? like UI responsiveness, browser lags or anything?
[Galaxy S II Q&A, Help & Troubleshooting] Many40:
As I said I haven't noticed. My 2nd rom is 4.0.4 AOSP. But it can be subjective so just try, it doesn't hurt :). Good luck.
[Galaxy S II Q&A, Help & Troubleshooting] aviral1990:
Oki sir..will do as soon as i get free today :)
[Galaxy S II Q&A, Help & Troubleshooting] maf1otul:
Thanks a lot for the guide. Keep the good work:good:
[Galaxy S II Q&A, Help & Troubleshooting] vuvuxela:
that's ok, i'm not always use my 2nd rom, thanks for your reply :good:
[Galaxy S II Q&A, Help & Troubleshooting] urine:
great guide. thanks
[Galaxy S II Q&A, Help & Troubleshooting] Iced O:
Thanks! Great guide, simple and straightforward. :thumbup:
[Galaxy S II Q&A, Help & Troubleshooting] thoramas:
Hi,

Just newb questions.

If I made a nandroid backup before to perform the dual boot on my SG2, is ti possible to restore (without trouble) the backup on one of the partition after making the dual boot ?

Do I have to save all my data (photos etc) before perform the dual boot ?

Thanks for help :good:
[Galaxy S II Q&A, Help & Troubleshooting] Many40:
1. Yes, you can restore your backup to 1st or to 2nd rom as you wish. Only condition is that backup is done on compatible custom recovery.

2. Your additional user data like photos, savegames, songs, app backups etc stored on internal sd card outside rom partitions will not be lost. They will stay even you do factory reset. But good practice is to copy your phone's content from time to time to PC.
[Galaxy S II Q&A, Help & Troubleshooting] honduras:
could someone give me some good settings for this kernel?
[Galaxy S II Q&A, Help & Troubleshooting] Many40:
See my signature or ask on MagicConfig's thread:

http://xdaforums.com/showthread.php?p=21851909 (of course reading before OP and some latest posts). Regards
[Galaxy S II Q&A, Help & Troubleshooting] budsixz:
another question

i wanted to ask if i can use siyah kernal v4.0.1 for this process

i mean does it support dual boot n:confused: it is written that 3.2.x is preferred
[Galaxy S II Q&A, Help & Troubleshooting] rocketero:
what version of clockworkmod has the option for 'dual boot' ??

I have 5.5.0.4
[Galaxy S II Q&A, Help & Troubleshooting] PsyOr:
Thanks for easy&great guide!

One question:

Where are the 2nd rom files stored? (system folder, apps, etc...)

I see a hidden folder @ internal memory called '.secondrom' with size of 2.2 GB and only two img files: data&cache.

There is any way to browse the 'root' dir of the 2nd rom ? // What is the path of the hidden partition? there is any way to see it?

I want to get into its system\etc , system\app folders, but these folders are only at the 'original' root (of the primary rom).

I'm using 'es file explorer' with all the root permissions enable, include enabled showing all the hidden files/folders... but can't see this partition. (if its possible of course)
[Galaxy S II Q&A, Help & Troubleshooting] Many40:
Yes, you can use. You should read in this way: 3.2.x is preffered as minimum or higher of course. I am using now 4.0.1.

It's not dependant on CWM version but it is just the Siyah kernel feature. You can have the same version of CWM recovery provided by another kernel but without dual-booting option.

---------- Post added at 08:16 AM ---------- Previous post was at 08:02 AM ----------

/data partition - .secondrom folder as mountable img file

/cache partition - .secondrom folder as mountable img file

/system partition in hidden partition: /dev/block/mmcblk0p9

All these partitions are available for you when you are booted to 2nd rom. I don't know (haven't had TBH any needs) to how access them from 1st rom or if it is even possible. If you really need it maybe ask droidphille on this thread:

http://xdaforums.com/showthread.php?p=24233069
[Galaxy S II Q&A, Help & Troubleshooting] Dumblikeadoor:
ok hi i registered in this forum just to ask this, i'm still pretty new to this part of "enjoying android" and i hope someone with patient can answer my question(s).

1. Being unaware of how a kernel changes my phone config, am i still going to be able to update my stock samsung ics in case they ever release another update (via kies[probably to jb])?

2. Once CM10 builds start showing up for the S2, can i dual boot them with the stock samsung ics? I mean, having both of them at the same time.

3. In case i give up on having the dual boot thing, can i just format the sd card and get free of the "second option boot" ? (I think this is the answer n° 5 in the faq but again im new to this so im making sure its the answer i should be looking for)

Thanks a lot for the tutorial! (i'm going to try it later once i get my answers :fingers-crossed:)
[Galaxy S II Q&A, Help & Troubleshooting] Many40:
1. Don't know how KIES behaves when custom kernel is installed because TBH I don't use it. What I do when a new stock rom is released - just download TAR file and install it via odin. Important is that whenever you flash a new stock rom and being already on dual-booting you will lose 2nd rom because flashing 1st rom overwrites the 2nd one's system partition. So a solution for that is to make nandroid backup of 2nd rom before and restore it after.

2. Yes, you can but with the latest version of Siyah kernel.

3. Yes, confirm just it's enough to (as stated in answer to FAQ5) use REMOVE 2nd ROM option and 2nd rom is gone.
[Galaxy S II Q&A, Help & Troubleshooting] Lonzo_SGS2_506:
hey man... thanks Phistachio !!

After going in circles about dual booting I´ve decided to try it thanks to your great tutorial.. just waiting for my battery reaches the 90% and I´ll be ready to hit it...

I´ll let you how everything went .... I wanna dual boot NeatRom Lite 3 and ParanoidAndroid JB1.98

thanks again bro...:good:
[Galaxy S II Q&A, Help & Troubleshooting] edbertin:
Except for this part "Scary" i will take courage later on and re-read all the guide again and again before try lol. Since will be great to have CM9 and CM10 running on dual boot.

But i have one doubt, we can update both rom´s (CM9/CM10) apart without problems?

Currently i have CM9 latest Nigtly installed, it seems i will not have any isuues so far doing this.

Tks
[Galaxy S II Q&A, Help & Troubleshooting] budsixz:
Huge thanks

THANK YOU TO ALL!!!!:victory:

was finally able to dual boot u guys r the best:good:
[Galaxy S II Q&A, Help & Troubleshooting] nopain9nogain:
I got a Modern Combat 3 installed in my primary rom. I installed it in secondary rom too. I launched it normally in my primary rom but when i launched it in the secondary one, it automatically deleted all the game Data and asked me to download them again... Anyone know what the problem is ?
[Galaxy S II Q&A, Help & Troubleshooting] Many40:
Where are your game data stored? In /data partition folder or somewhere outside in sdcard. If the first one then it is normal because second rom uses different separated partitions from the first one. Data partition for 2nd rom is located in /.secondrom/data.img
[Galaxy S II Q&A, Help & Troubleshooting] antoniogag:
Can i use a battery profile in primary rom and a perfomance profile in secondary rom (using exteawks, of course).

Thanks

Enviado desde mi GT-I9100 usando Tapatalk 2
[Galaxy S II Q&A, Help & Troubleshooting] Many40:
Yes, you can but if something goes wrong with ExTweaks settings for 2nd rom you will not be able to reset a profile from CWM recovery. It works only for 1st rom. Regards
[Galaxy S II Q&A, Help & Troubleshooting] HAXTREME:
Hi! I was using RR v3.0.4 as my secondary ROM and everything was working just fine. I had stock ICS as my primary. A day back I installed RR 2.6.1 as my primary ROM, and since yesterday, I've been facing repeated FCs while using my secondary ROM. After the fb app force closed, I rebooted the phone,only to find the battery had gone from ~45% straight down to ~25%

I'm guessing changing my primary ROM had something to do with it. Is it a known problem, or did I do something wrong? Its the first time I've changed my primary ROM. performed all the steps mentioned while flashing a new ROM. wiping cache etc..
[Galaxy S II Q&A, Help & Troubleshooting] Many40:
It's unfortunately a known issue. When someone flashes a rom as 1st one, the hidden partition /system for 2nd rom is actually used (overwritten) by carrier branded firmwares to store some specific apks, Csc stuffs, etc (after first reboot, it's never used again). It happens for sure (personnally noticed that) if you flash a rom as TAR file with odin - then even it is not possible to boot to 2nd rom (no boot options) but most likely it causes problems also if someone flash the 1st rom as ZIP flashable rom from CWM recovery as you probably did. You as you wrote could boot to 2nd rom but nevertheless I think /system folder of this rom was corrupted. Only solution (I wrote in this thread a few times already) is to have nandroid backup available of 2nd rom before flashing a rom as the 1st one and to restore the backup after flashing. Regards
[Galaxy S II Q&A, Help & Troubleshooting] HAXTREME:
I did see the previous posts you mentioned, but I just wanted to be certain. more so about the straight 20% drop in battery than the FCs. thanks :)
[Galaxy S II Q&A, Help & Troubleshooting] lasic.2000:
Thx

Hey!

Thanks for this awesome guide.Now I'll have2 roms :D Alliance v3 and Hydra H2o 1.4.1 :D

EDIT: Dual boted while ego :)
[Galaxy S II Q&A, Help & Troubleshooting] edbertin:
Yeah works like a charm.

CM9 and CM10 on dual boot

:D
[Galaxy S II Q&A, Help & Troubleshooting] RedSnake9:
Hi guys, I have something weird happening here. I've done everything like the first post tells me to do and It worked the first time I tried dual-boot. Then i removed 2nd ROM after a while, and now I wanted to try another one. I follow the steps once again and install the second ROM but, no matter what, I only get to the boot animation that gets stuck after like 15 seconds and doesn't let me boot into the ROM. Primary ROM works without a problem, but I can't boot the second ROM. Am I missing something?
[Galaxy S II Q&A, Help & Troubleshooting] CharlesNCH:
I'm currently dual-booting with Siyah and what to make my Secondary Rom as Primary.

I assume I can use

Swap 1st ROM with 2nd ROM or

Swap 2nd ROM with 1st ROM

option in Recovery mode.

My question is, which one do I use? Are they not the same? If not, then what is the difference?

Maybe I'm missing something here :confused:
[Galaxy S II Q&A, Help & Troubleshooting] Many40:
Hi, there are no such options in CWM recovery. There is one you should use. "Swap 1st rom and 2nd rom". Remember:

1. it takes time: it will copy 2nd rom to temp location, copy 1st rom to 2nd and move 2nd rom to 1st.

2. it is needed quite much memory space on sdcard for this: about 5 GB, maybe a little less.

---------- Post added at 04:38 PM ---------- Previous post was at 04:28 PM ----------

I need more info:

1. What rom did you use successfully?

2. How did you remove it?

3. What exactly steps did you follow while installing another rom as 2nd

4. What rom was it?

5. Did you try any other roms to install as 2nd one (except a faulty one)?