yashsingh1/xdaforums huggingface dataset:
[Galaxy S II Q&A, Help & Troubleshooting] HAXTREME:
It wont boot. Leave alone the dual bit :silly:
[Galaxy S II Q&A, Help & Troubleshooting] Many40:
It's nice to see guys here helping the others. Big :good:

Hi, there is a special way on XDA to thank people who try helping the others - just pressing "THANK" button instead of only saying thank you. Number of "THANKS" which someone posses means how someone is keen on helping the others (not as some people think - sign of supremacy).

Regards
[Galaxy S II Q&A, Help & Troubleshooting] sianzb0i:
when i flash a 2nd ROM, a default kernel comes with it. So after adding the 2nd ROM what kernel will be on the 2nd ROM?
[Galaxy S II Q&A, Help & Troubleshooting] HAXTREME:
The second ROMs kernel installation is overwritten by the original kernel. The kernel you install on the second ROM has no effect. Its the primary ROMs kernel that is the default unless another is installed over it.
[Galaxy S II Q&A, Help & Troubleshooting] dutchmen23:
Trying to dual boot RR 2.6 and 3.0.9 - stuck at Samsung Startup Screen

Anyone out there have advice on a dual boot issue? I'm running resurrection remix 2.6 as my stable/daily OS and would like to install resurrection remix 3.0.9 as secondary ROM and dual boot. I'm running Siyah v4.1.4. I followed the exact steps listed in other XDA forums but i can't get past the Samsung start-up screen.

Was about to give up, but figured I would ask.

Thanks...:confused:
[Galaxy S II Q&A, Help & Troubleshooting] HAXTREME:
That's coz RR 3.0.9 is based on the aokp build 4. Not supported by siyah yet. If you want to stick to RR, you'd have to be on 3.0.7 (I think, is the latest RR ROM which was supported by siyah) or 3.0.6.

Any ROM based on on build 4 or the latest cm10 (after Oct 2nd, I think) will give you the same problem. Look out for roms that mention "new mali drivers" , or " build 4" as won't run on siyah yet.
[Galaxy S II Q&A, Help & Troubleshooting] Sun90:
u can dual boot RR3.0.9 with RR2.6 using siyah kernel ma8, since the new mali drivers are not incorporated yet with RR3.0.9.
[Galaxy S II Q&A, Help & Troubleshooting] dutchmen23:
Glad to hear it can be done on the latest RR version. Esentially, I want to run my trusted and configured RR 2.6 alongside a really good JB ROM. I've installed many ROMs and have been impressed with RR, but would be open to other JB ROMs for the gs2 that others have found to work well with limited bugs.

Is Siyah ma8 available on their site?

Thank you for the feedback.
[Galaxy S II Q&A, Help & Troubleshooting] HAXTREME:
My bad, sun90. I could've sworn I'd read it somewhere.

There's no such thing as siyah ma8.. he means "siyah kernel,mate" :D

Sorry for my mistake btw, If its compatible and isnt installing, it could possibly be a bad download..did you check the md5? Solid file explorer gives you the option to do so.
[Galaxy S II Q&A, Help & Troubleshooting] Sun90:
first update siyah v4.1.4 of urs to v4.1.5, and then dwnld the RR3.0.9 rom properly from the Mirror link in Post#2 of the RR main thread, also verify the MD5 and then do the installation and see:)

---------- Post added at 06:53 PM ---------- Previous post was at 06:51 PM ----------

I do 'Beta testing' for that rom ma8;)
[Galaxy S II Q&A, Help & Troubleshooting] Many40:
And if it still doesn't work, even you claim you followed all the steps from OP, better describe us step by step what you did to get quicker support. Regards
[Galaxy S II Q&A, Help & Troubleshooting] dutchmen23:
I followed the instructions from these XDA threads.

http://xdaforums.com/showpost.php?p=24233085&postcount=2

http://xdaforums.com/showthread.php?t=1680851&page=2
[Galaxy S II Q&A, Help & Troubleshooting] timberwolf60:
Fellow strictly to open instructions sure it will works for you also see my signature. It worked great for me except both version will cause one sensor light near to the front camera pernanatly on. Siyah kernel will dual boot on jellybam 7th October edition and AOKP build 4 by bajee16 because without the new mali driver. I need dual boot so I will stick to siyah 4.1.5 until GM upgraded to the latest dual boot kernel, then I am going to test those new Mali driver rom.

Send via my GT I9100 using Tapatalk2,

1st ROM RR 2.6.1,

2nd ROM RR-JB 3.0.9

Siyah 4.1.5, SuperSU Pro
[Galaxy S II Q&A, Help & Troubleshooting] dutchmen23:
Thanks Timberwolf60 and all today...

I flashed siyah 4.1.5, downloaded RR 3.0.9 (and checked md5), prepared dual-boot options according to instructions from url in my earlier post, everything successfully installed (did not select the offered kernels) , wiped dalvik/fixed permissions, but when rebooting, I get the option for booting rom 2, and it just hangs. Do I need to nandroid, install to first rom, copy to second, and go that path? :confused:

Again, much thanks to everyone for the help.
[Galaxy S II Q&A, Help & Troubleshooting] Many40:
Hi, I didn't ask you to post links to the guides but just list exactly what you did according to those guides. The guides (at least the first one) describe many possibilities to do the same. So what I would like to know is:

1. Did you you made followng steps?:

- CWM recovery > dual boot options > Remove 2nd rom

- CWM recovery > dual boot options > Wipe 2nd rom data & cache and Wipe 2nd rom Dalvik cache

2. Did you check if RR 3.0.9 works for you as 1st rom?

BTW during instalation of RR as 2nd rom you can select a kernel (maybe you even should?, at least I did it when installed RR some time ago). A kernel you might select will not be flashed - so you will stay on your Siyah.

Regards
[Galaxy S II Q&A, Help & Troubleshooting] dutchmen23:
Great questions, after doing everything you just mentioned (exactly) , I tried installing as rom 1 (no 2nd ROM just to see of it worked). Before doing this, I followed the RR full wipe instructions exactly, and it wouldn't boot.

Good thing I did a nandroid prior. Was able to get things back. I've installed jb in the past. Not sure why 3.0.9 won't run. Checksum is verified and it runs through the install with no problems.

I don't mind doing a full wipe and trying to get 3.0.9 to at least install.
[Galaxy S II Q&A, Help & Troubleshooting] Many40:
So, it means that it isn't a dual-boot issue but general RR issue which I think you should raise on RR thread. What I can do for you I gonna check if this roms installs on my phone and will give you a feedbaack later. Regards
[Galaxy S II Q&A, Help & Troubleshooting] Sun90:
the real confusing thing with RR v3.0.9 is that it comes in to variants for S2.

one is for the I9100 and its variants M/P/T which can be found in link 1 below.

1)http://xdaforums.com/showthread.php?t=1436854

the other on is for the I9100G model which can be found in Link 2 below.

2)http://xdaforums.com/showthread.php?t=1822409

if u have dwnld'd accidentally the rom from link 2 then u will face issue while installing it as a secondary rom for sure on ur I9100 model:)
[Galaxy S II Q&A, Help & Troubleshooting] Many40:
Just installed RR 3.0.9 as my 2nd rom - no problems at all.
[Galaxy S II Q&A, Help & Troubleshooting] dutchmen23:
Sun90...I think you just nailed it. I'm a little surprised there's nothing mentioned about the variant of 3.0.9. I had the 'G' version which is obviously why it didn't work.

Thank you...and to everyone else for helping work through this issue.
[Galaxy S II Q&A, Help & Troubleshooting] Sun90:
its ok buddy, but i would request u to read the OP of any rom thread carefully befor acting, that way u can safegaurd ur precious phone always;)
[Galaxy S II Q&A, Help & Troubleshooting] flixblixclix:
Hi friends.... have one doubt.... if am dual booting with stock and latest cm10 which 4.1.2,,,,, will the second rom kernel will change to cm10 kernel or it will be siyah kernel only in second rom...... pls clarify me guys...
[Galaxy S II Q&A, Help & Troubleshooting] HAXTREME:
The second ROMs kernel will not replace the original kernel.

However siyah isn't compatible with the latest cm10 so you'll get stuck in a boot loop if you boot into the second ROM.

If you want latest cm10, you'll need the latest dorimanx kernel or default cm kernel. Neither will allow dual boot though.
[Galaxy S II Q&A, Help & Troubleshooting] toonarmy4life:
Hey ppl im currently on stock ics LPQ with siyah kernel 4.1.5 was wondering if someone can confirm to me that if i install pa v2.10 as a 2nd rom do i install gapps in 2nd rom also?
[Galaxy S II Q&A, Help & Troubleshooting] Mohamedselim:
Yes, if the rom,tried it but can not remember, does not contain gapps,so flash them via flash zip for second rom in cwm dual boot options
[Galaxy S II Q&A, Help & Troubleshooting] mihaixp:
Is this method (the one in the first post) valid for the newest Siyah 5.0?
[Galaxy S II Q&A, Help & Troubleshooting] Sun90:
In the changelog of Siyah v5.0

SiyahKernel S2-v5.0

Posted on October 16, 2012 by admin

Changelog:

■Dual booting with new CM10 + Samsung ICS ROM

so u must have a newer version of CM10 or any other JB rom with latest Mali driver for that kernel (V5.0) to boot successfully and to have Dualboot support:)
[Galaxy S II Q&A, Help & Troubleshooting] mihaixp:
This much I figured out. The question is, all the menus and options in CWM Recovery work in the same way as presented in the first post by Phistachio?
[Galaxy S II Q&A, Help & Troubleshooting] Cayman.n2o:
I'm using ReVolt 2.5 with Siyah 4.1.5. I got need to use mhl tv out which is not supported with jb. So can I simply add Official 4.0.3 rom as second rom to dual boot?

I would preffer not to install my main rom again and all...
[Galaxy S II Q&A, Help & Troubleshooting] Many40:
Yes, you can do that.
[Galaxy S II Q&A, Help & Troubleshooting] Cayman.n2o:
Spent some time searching forums for rom and I got a bit comfused...

Can anyone point me to 4.0.3 stock samsung rom that can be flashed via cwm as my second rom in dual boot using siyah?
[Galaxy S II Q&A, Help & Troubleshooting] Many40:
I recommend Neatrom from HERE (all as ZIP files CWM flashable). You can choose between many of them, the last 4.0.3 were UHLPS, XWLPI ... You can choose also between full, lite (with many bloatware apps removed) and themed versions.
[Galaxy S II Q&A, Help & Troubleshooting] Cayman.n2o:
A lot of roms there!!! :D

I'll go with "28th June 2012 XWLPI NeatRom Full" for start. So NeatRom is samsung base rom with some modifications? I want stock rom because of original driver, camera, and mhl, to compare with jb customs.

Thanks a lot for the help so far!
[Galaxy S II Q&A, Help & Troubleshooting] mihaixp:
Yes, only if you install the latest kernel, Siyah 5.0.

PS: Make sure that ReVolt 2.5 has the latest Mali driver that supports Siyah 5.0 (otherwise it's not possible).
[Galaxy S II Q&A, Help & Troubleshooting] Many40:
Sorry, but what are you taking about?. Don't pls mislead him. He is now just using AOKP rom (old mali) on Siyah 4.1.5 and he would like to have ICS 4.0.3 as 2nd rom. So Siyah 4.1.5 is exactly proper to this solution - can dual boot AOKP and ICS roms (both based on old mali).

Currently he doesn't need to change neither aokp rom nor kernel to dual boot with ICS.
[Galaxy S II Q&A, Help & Troubleshooting] mihaixp:
Sorry. I didn't know that. I presumed that Siyah 4.1.5. only lets you dual boot with a stock ICS and another ICS-only ROM (AOKP or CM9). ReVolt 2.5 is a JB ROM so I thought you can't do that with 4.1.5.

That confused me a bit too. :silly:
[Galaxy S II Q&A, Help & Troubleshooting] Many40:
No problem mate. I recently dual boot ICS 4.0.4 with SuperNexus AOSP/JB 4.1.1 until its build 5 (implementation of new mali drivers).

Regards

---------- Post added at 08:38 AM ---------- Previous post was at 08:33 AM ----------

Yes old method is valid. Tested it yesterday. In addition before any wiping I also use option Remove 2ndRom (it formats 2nd ronm system partition + deletes /data and /cache partitions).

---------- Post added at 08:42 AM ---------- Previous post was at 08:38 AM ----------

Hi,

I think we shouldn't read the changelog so strictly. I'm dual booting on Siyah 5.0b2 two ICS 4.0.4 roms. So it seems to not be necessary having new CM10 or JB rom with new mali.

Regards
[Galaxy S II Q&A, Help & Troubleshooting] biribirii:
hello guy!

sorry for my english

i got samsung galaxy s3 with rom Supernexus 4.1.2 and kernel siyah 1.7cr1

mi recovery is siyah 6.0.1.4

i try to dual boot

I copy my first rom in the second

but when i try to make:

Wipe data/chace 2nd rom o install to 2nd rom gve me

"not implemented yet" how i can resolve??

many thanks!
[Galaxy S II Q&A, Help & Troubleshooting] Many40:
Hi,

Do you know that this thread is not for Galaxy S3 but S2? If you gave me your phone for some time maybe I would be able to help you :)

Regards
[Galaxy S II Q&A, Help & Troubleshooting] sahil333:
i am using sammy stock 4.0.3 rom as primary and trying to flash jellybam (4.1.2) as secondary ....i wiped both data and cache for 2nd rom and when intsalling the second rom it says cant open (path of rom) bad installation aborted....wat to do???

using siyah 5.02b
[Galaxy S II Q&A, Help & Troubleshooting] Many40:
Try format 2nd rom's system partition by using Remove 2nd rom option before wiping data and cache. I think it should work however it's still beta version so there still can be some issues. I checked personnaly only dual boot with ICS 4.0.4 and it worked.
[Galaxy S II Q&A, Help & Troubleshooting] arora_c:
stock rom as 2ndROM

thanks for such detailed steps.

i want to use stock/samsung rom as 2ndROM, i am having .md5 file type, how can i do so?
[Galaxy S II Q&A, Help & Troubleshooting] Many40:
Hi, what rom/Siyah kernel do you have now?
[Galaxy S II Q&A, Help & Troubleshooting] arora_c:
I am using "Dorimanx 7.4 with MALI - SGII" kernel. I am able to see 2ndROM option.
[Galaxy S II Q&A, Help & Troubleshooting] Many40:
Sorry:

1. I'm really willing to help you but I can't because you are in wrong thread. As you can read from thread's title it is for Siyah kernel - not Dorimanx. Even Dorimanx was made based on Siyah I don't know if dual boot works in similar way because I don't use it.

2. You didn't answered what rom you are using

Regards
[Galaxy S II Q&A, Help & Troubleshooting] toonarmy4life:
Hey ppl. Was wondering if someone could tell me if I flash siyah kernel 5.0 could I still be able to dual boot two old rooms say paranoid android v2.10 nd cm v9.0 or is siyah v5.0 for roms with the new mali drivers only I'm confused lol.

I'm currently using stock 4.0.3 as 1st rom cm9.1 as 2nd rom so is it safe to flash siyah 5.0 nd if so will I still have my 1st n 2nd rom nd where can I get one that's flashable through cwm because on siyah site it don't say if its for Odin or cwm

I'm currently using siyah kernel 4.1.5
[Galaxy S II Q&A, Help & Troubleshooting] Many40:
Generaly yes. Siyah 5.0b2 supports old mali roms - ICS as well as CM9. So download this http://d-h.st/4lm, wipe cache and dalvik (optionally) and flash from CWM. Due to the fact that it is still beta version, better make nandroid backup of both your roms before in case of any unpredictable issues.
[Galaxy S II Q&A, Help & Troubleshooting] toonarmy4life:
OK. I've tried to backup my phone (1st rom its stock 4.0.3 LPQ ) the other night and it stopped half way through or I think its when it hit the point where its backing up data it has a kernel panic I've asked about kernel panic in the past because since I installed siyah on my phone (stock 4.0.3 LPQ rooted rachmat3 methord) ive been getting kernel panic when going into task manager or checking an applications info but people don't seem to able to help me I've tried kernel cleaner nd different siyah kernels but nothings worked btw I'm new to android n flashing but I flashed first rom the otherday cm9.1 as 2nd rom its great so I wanna flash another rom as first so I won't get kernel panics no more but I'm abit worried about that kernel panic happening when I do wipes cause am I right n thinking I'm most likely to brick my phone if it has a kernel panic while its wiping phone
[Galaxy S II Q&A, Help & Troubleshooting] arora_c:
I am using AOKP JELLYBEAN BUILD 5, i am able to see dual boot options in the recovery menu.

Secondly I tried to install SUPER NEXUS JB ROM AS 2nd ROM. installation was successful but i wasn't able to boot into it by the methods mentioned in first post.

Sent from my GT-I9100
[Galaxy S II Q&A, Help & Troubleshooting] Sun90:
for now it (siyah v5.0) can Dual boot an ICS and JB rom ma8, not two JB roms though:)
[Galaxy S II Q&A, Help & Troubleshooting] arora_c:
Yes agreed. What I want is to have ROM 1 as custom JB ROM and ROM 2 as stock ICS ROM.. Will it be possible?

Sent from my GT-I9100
[Galaxy S II Q&A, Help & Troubleshooting] Sun90:
well either ur confused with dual boot or ur simply trolling around here just to get that 10 post barrier ma8:)

if ur intended to have Rom1 as JB and Rom 2 as stock ICS then why the hell r u trying to install two JB roms, while the changelog in siyah kernel has clearly mentioned ' Dual boot CM10 / ICS'.

YES, its possible to have ROM 1 custom JB and ROM2 as Stock ICS(4.0.4 would be better)
[Galaxy S II Q&A, Help & Troubleshooting] timberwolf60:
Siyah v5.0 b1/2 can used to dual boot any compatible rom such as rr 3.1.0, rr 2.7 cm9, aokp build5, jellyBam latest, cm10 latest and Sammy ics rom. Also paranoid 2.5.2. Which ever combination you like.

Send via my GT I9100 using Tapatalk2,

1st ROM RR JB 3.1

2nd ROM RootBox v3.0,

Siyah v5b2, SuperSU Pro
[Galaxy S II Q&A, Help & Troubleshooting] arora_c:
please, read my first post where i had mentioned the same thing that i want to have 1st custom rom & 2nd stock rom & what should be file type of stock rom to install using cwm recovery i.e .zip, .md5 or any other?

Thanks.
[Galaxy S II Q&A, Help & Troubleshooting] Many40:
Everything is ok but one. Pls, did you read my post? Why if you are on Dorimanx asking questions on Siyah thread? Are you gonna change kernel? If not ask questions on proper thread - Dorimanx one. Regards
[Galaxy S II Q&A, Help & Troubleshooting] toonarmy4life:
Could someone tell me how to wipe cache partition after install of 2nd rom there's no option all I see is data/cache and dalvik cache.

Data/cache wipes the rom
[Galaxy S II Q&A, Help & Troubleshooting] Many40:
Try CWM recovery > mounts and storage > format secondrom_cache, it should do the same.
[Galaxy S II Q&A, Help & Troubleshooting] teh_cg:
Hi there,

I am new to dual boot, currently I am using super nexus build5, and I would like to have ( DiLiDroiD ICS UHLPS 4.0.3 R4.2 - Bugs fixed) as 2nd rom, using latest siyah 5.0rc1, what is the step? Same as 1st post?

Will 4.0.3 is recommended to be 1st rom or 4.0.4 is highly recommended?

Thanks
[Galaxy S II Q&A, Help & Troubleshooting] Sun90:
the steps r same as in post 1 ma8, and 4.0.3 is recommended for stability:)
[Galaxy S II Q&A, Help & Troubleshooting] Many40:
You can flash ICS 4.0.3 as the 2nd rom. Seems that steps are unchanged compering to older versions and they are as follows (checked on b2 - should be the same for rc1):

1. Backup your 1st rom in CWM (just in case)

2. CWM recovery > dual boot options > Remove 2nd rom

3. CWM recovery > dual boot options > Wipe 2nd rom data and cache

4. CWM recovery > dual boot options > Wipe 2nd rom dalvik cache

5. CWM recovery > dual boot options > Install to 2nd rom from internal or external SD card (zip version of rom)

6. CWM recovery > dual boot options > Fix 2nd rom permissions (optionally)

Done

BTW you have to have about 2.6 GB of free space of internal SD card for 2nd rom.

Regards
[Galaxy S II Q&A, Help & Troubleshooting] teh_cg:
Hey Mate,

I am waiting battery charging.Once full charge, will start 1st time dual boot in my SGS2.i have 7GB about that.:good:

Yeah mate, 2nd rom is flashed, dual booting mission completed
[Galaxy S II Q&A, Help & Troubleshooting] dracula8275:
Hi, i'm new in the dual boot, i read the begin ot this excelent thread and I have a few questions. I'm using in dual boot AOKP Milestone Pure -3 by Spike like first rom and Neat Rom (18.10) for second rom. My first question is: must i swipe the two roms for upgrading or installing new applications in the Neat rom? I read before that all the changes must be done before using the rom as second.

Second question: in my configuration with the dual boot can i remove the second NeatRom and flashing a nandroid backup (for exemple [ROM] -26/10- OlloSII CrEaTuRe UHLPH 4.0.4).

Thirth and last question: is there a possibility (any application) to use the same contact and message data base with the two roms. I mean, that using dual boot I must syncronise my contacts, call logs and messages in the second rom after using the first rom for 3 days for exemple.

I'm using Siyah-s2-v.4.1.5/11.09.2012

Thank you in advance
[Galaxy S II Q&A, Help & Troubleshooting] HAXTREME:
1. No, as far as I know, you don't need to swap. You can install apps to the second ROM the same way you install/update apps in your primary ROM.

2. As long as the ROM you're restoring from backup is compatible with the kernel.

3. Use an app like SMS backup+ you can use it to backup all your messages and calling list. Keep it on auto backup or backup manually before you switch from one ROM to another.

As for contacts, sync it to your gmail. It will then be available with both ROMs.

Hope it helps.
[Galaxy S II Q&A, Help & Troubleshooting] Many40:
1. Normally not. Dual-boot section has an option "Install zip to 2nd rom drom internal/external sdcard" so you can flash any mods from there. However:

- these feature is not 100% perfect. It might be some issues, so:

- make nandroid backup of 2nd rom before installing any additional mods

- don't install a few zip's at once - install one by one and reboot each time

- if something fails then yes, you have to swipe roms, install mods and sipe again.

2. Yes, you can do that but:

- your nandroid backup had to be done on compatible CWM recovery

- when I recover nandroid backup to 2nd rom always do the same steps as for installing new rom (Remove 2nd rom, wipa data/cache, wipe dalvik cache of 2nd rom)

3. No. Contacts/messages are stored in /data android partition and both roms don't share this partiton but use two separate ones storing contacts/messages in differnet locations. However you can use backup apps to backup / restore contacts every time you open new rom.

Regards
[Galaxy S II Q&A, Help & Troubleshooting] viva.fidel:
quick question, where are the files for the 2nd rom actually kept and how can I access them while I'm still in the 1st rom. I read somewhere that they're meant to be in the data partition in data/media/ but that folder doesn't exist (using es file explorer - root access obviously)
[Galaxy S II Q&A, Help & Troubleshooting] HAXTREME:
AFAIK, you can't access second ROM files (apps, contacts, texts) etc from the primary ROM. You can make a backup of those and restore the backup on your primary ROM though. Titanium backup for apps and SMS backup+ for texts and caller lists, sync contacts with your Google acc.

all files not stored in the internal SD phone memory can be accessed by both ROMs. Stuff like pictures, music, etc.
[Galaxy S II Q&A, Help & Troubleshooting] guysoft:
You should be able to do this if you mount the data.img file as a loopback device. Strangely enough, there is no app for that yet! (app idea hunters here is something for you)
[Galaxy S II Q&A, Help & Troubleshooting] viva.fidel:
couldn't that just be done by terminal emulator or a script?
[Galaxy S II Q&A, Help & Troubleshooting] prnvp23:
By any chance would there be a future version of the kernel that enables both ROMs to be JB? ie. a JB/JB system
[Galaxy S II Q&A, Help & Troubleshooting] rahulsethi:
Didn't Work

i have an Pfiitech ROM v 1.0.8 gtx ICS AOKP custom Rom as my Rom , i wanted to flash a JB ( jellyBam) rom as my secondary rom

i am using v4.1.5 of siyah kernel ,

the jelly bean rom that i was installing as my secondary rom had aroma based install and it had latest siyah (which i heard is not good) .

i wiped off cache for 2nd rom in dual boot options then wiped dalvik cache and then installed rom from internal sdcard .

in the aroma installer , i didnt select any kernel to install from the menu because i want to have siyah 4.1.5 only.

and after completing the procedure , secondary rom doesn't boot , can anyone tell why ?