[GUIDE] How to Dual Boot using the Siyah Kernel

[TopherBrink]

Sorry, it will not work. Latest Siyah kernel doesn't support dual booting at all.

Sent from my GT-I9100 using Tapatalk 2

So what options are left for dual booting on the S2..?

 

[Many40]

So what options are left for dual booting on the S2..?

Latest Dorimanx 8.x kernel. To dual boot stock 4.1.2 based roms you need to modify them to get rid of /preload partitions.
Look here for collection of already modified roms for dual booting:
http://xdaforums.com/showthread.php?t=2399193

 

[TopherBrink]

Latest Dorimanx 8.x kernel. To dual boot stock 4.1.2 based roms you need to modify them to get rid of /preload partitions.
Look here for collection of already modified roms for dual booting:
http://xdaforums.com/showthread.php?t=2399193

Will look into that instead then - cheers!

 

[Darkknight1123]

dual boot s2 i9100g

Siyyah team. Can you make a dual boot kernel for s2 i9100g. I am desperate to dual boot but all the available methods are very complicated. Please

Hello fellas

This guide is just a quick how-to on dual booting. Many people have doubts on how to dual boot on Siyah, because it's something new and perhaps "scary" because they may think it can brick their phone.
___________________________________________

Requirements

• A Galaxy S II I9100
• 3.x Siyah Kernel (3.2.x preferred). For latest version, visit the Siyah Kernel thread
• 90% charged battery
• 2.5GB of free space in your internal SD card
• Patience
• Time

So, do you complete all those requirements? Time to go to action. BUT BEFORE, a brief FAQ in a simplified way, based from this post made by the amazing droidphile
___________________________________________

FAQ

Can I dual boot Ice Cream Sandwich and Jelly Bean?
Yes you can, using Siyah v3.5.2.

1) What is dual booting?
Dual booting is the ability to boot into two different Ice Cream Sandwich-based ROMs (like CM9 and AOKP).

2) How is this done?
This is achieved by sharing the kernel and using a hidden partition in dev/block to store the 2nd ROM's /system and the /sdcard (Internal storage) to store /data and /cache inside a hidden folder (/sdcard/.secondrom)

3) How much does it take to clone a ROM?
It should take around 7 minutes

4) I want to dual boot fasturr. wat do?
When you get the splash screen to choose between ROMs, touch the screen or press volume UP to enter the PRIMARY ROM, and press the Home button or volume down for the SECONDARY ROM.

5) How can I remove the Dual boot and its partitions?
Just use the "Remove 2nd ROM" option in the Dual Boot options menu.

6) If I format my /sdcard, will my second ROM go kaput?
Yep, because you're wiping the folder that contains /data and /cache.

7) Can I dual boot a gingerbread ROM in a ICS ROM?
Niet. No.
___________________________________________

Now, the PROCEDURE

1. You must flash the Siyah kernel, either with CWM or ODIN
2. After you have flashed the kernel, reboot and let Android upgrade itself.
3. All done? Alright, move up to next step!
4. Download the desired ROM that you want to make it secondary, and place it in a safe place in your internal SD card
5. After that, reboot to CWM Recovery, and navigate to "Dual Boot options"
6. You'll see a list of options, namely :
   • View current status
   • Clone 1st ROM to 2nd ROM
   • Clone 2nd ROM to 1st ROM
   • Swap 1st ROM with 2nd ROM
   • Swap 2nd ROM with 1st ROM
   • Remove 2nd ROM
   • Install 2nd ROM from Internal SD card
   • Install 2nd ROM from External SD card
   • Wipe 2nd ROM data/cache
   • Wipe 2nd ROM dalvik-cache
   • Fix 2nd ROM permissions
     
     What does each one mean, you ask?
     • View current status - This option will show you the stats of the dual booted ROM.
     • Clone 1st ROM to 2nd ROM - This option will copy (clone) the current ROM that you use (for example, CM9) and paste it to the 2nd ROM directory. Takes around 7-20 mins.
     • Clone 2nd ROM to 1st ROM - This options copies the 2nd ROM (after installed of course) and pastes it to the place where the 1st ROM was, replacing it.
     • Swap 1st ROM with 2nd ROM - This will swap the 1st ROM with the 2nd ROM, making the Primary ROM -> Secondary ROM and the Secondary ROM -> Primary
     • Swap 2nd ROM with 1st ROM - This will do the exact opposite of the above option
     • Remove 2nd ROM - This will completely wipe and remove any 2nd ROM files and folders
     • Install 2nd ROM from Internal SD card - This option is to flash the ROM to the 2nd ROM directory from the Internal SD card
     • Install 2nd ROM from External SD card - This option is to flash the ROM to the 2nd ROm directory from the External SD card
     • Wipe 2nd ROM data/cache - This will wipe the 2nd ROM data and cache. When it's done for the first time, it'll create data.img and cache.img and create the folders inside /sdcard/.secondrom, preparing your phone for the 2nd ROM.
     • Wipe 2nd ROM dalvik-cache - This will wipe the dalvik cache of the 2nd ROM
     • Fix 2nd ROM permissions - This will fix the permissions of the 2nd ROM
7. Select the option Wipe 2nd ROM data/cache. This will prepare your phone to flash the 2nd ROM. It takes around 5-7 minutes.
8. After having that done, select the option to wipe the dalvik cache.
9. After all that is done, select either "Install 2nd ROM from Internal SD card" or "Install 2nd ROM from External SD card" depending on the location of your ROM
10. Wait a few minutes for the flash
11. Reboot
12. Press the Home button or volume down to enter the Secondary ROM

___________________________________________

After you have done all that, you're set and you're in the Dual Booting world! I hope that this guide helped you, and if it did, press the thanks button!
___________________________________________

Credits

GokhanMoral - For his amazing kernel
Droidphile - For his great FAQ

 

[Many40]

Siyyah team. Can you make a dual boot kernel for s2 i9100g. I am desperate to dual boot but all the available methods are very complicated. Please

Hi,
Sorry for that but:
- there is no any Siyah team.
- developer of Siyah kernel - Gokhanmoral stopped development some time ago and it's not clear if he ever comes back
- latest ver of Siyah kernel even can't dual boot i9100.
- please don't quote whole OP
Regards

Sent from my GT-I9100 using Tapatalk 2

 

[dicas_android]

New and Custom Old

I'd like to know: Can I use some based CM 4.4.x(or other mod) with one Rom Stock base 4.1.2(Ex: Omega)?
I want that because I need to use MHL(tested and is OK in Omega) and I can't in any based 4.4.x .

 

[darkpepe]

I'd like to know: Can I use some based CM 4.4.x(or other mod) with one Rom Stock base 4.1.2(Ex: Omega)?
I want that because I need to use MHL(tested and is OK in Omega) and I can't in any based 4.4.x .

Please have a look at this thread:
http://xdaforums.com/showthread.php?p=49711485

 

[dicas_android]

Please have a look at this thread:
http://xdaforums.com/showthread.php?p=49711485

Thank you. I'll try and will write my results.

 

[tdkholmes]

Hello fellas

This guide is just a quick how-to on dual booting. Many people have doubts on how to dual boot on Siyah, because it's something new and perhaps "scary" because they may think it can brick their phone.
___________________________________________

Requirements

• A Galaxy S II I9100
• 3.x Siyah Kernel (3.2.x preferred). For latest version, visit the Siyah Kernel thread
• 90% charged battery
• 2.5GB of free space in your internal SD card
• Patience
• Time

So, do you complete all those requirements? Time to go to action. BUT BEFORE, a brief FAQ in a simplified way, based from this post made by the amazing droidphile
___________________________________________

FAQ

Can I dual boot Ice Cream Sandwich and Jelly Bean?
Yes you can, using Siyah v3.5.2.

1) What is dual booting?
Dual booting is the ability to boot into two different Ice Cream Sandwich-based ROMs (like CM9 and AOKP).

2) How is this done?
This is achieved by sharing the kernel and using a hidden partition in dev/block to store the 2nd ROM's /system and the /sdcard (Internal storage) to store /data and /cache inside a hidden folder (/sdcard/.secondrom)

3) How much does it take to clone a ROM?
It should take around 7 minutes

4) I want to dual boot fasturr. wat do?
When you get the splash screen to choose between ROMs, touch the screen or press volume UP to enter the PRIMARY ROM, and press the Home button or volume down for the SECONDARY ROM.

5) How can I remove the Dual boot and its partitions?
Just use the "Remove 2nd ROM" option in the Dual Boot options menu.

6) If I format my /sdcard, will my second ROM go kaput?
Yep, because you're wiping the folder that contains /data and /cache.

7) Can I dual boot a gingerbread ROM in a ICS ROM?
Niet. No.
___________________________________________

Now, the PROCEDURE

1. You must flash the Siyah kernel, either with CWM or ODIN
2. After you have flashed the kernel, reboot and let Android upgrade itself.
3. All done? Alright, move up to next step!
4. Download the desired ROM that you want to make it secondary, and place it in a safe place in your internal SD card
5. After that, reboot to CWM Recovery, and navigate to "Dual Boot options"
6. You'll see a list of options, namely :
   • View current status
   • Clone 1st ROM to 2nd ROM
   • Clone 2nd ROM to 1st ROM
   • Swap 1st ROM with 2nd ROM
   • Swap 2nd ROM with 1st ROM
   • Remove 2nd ROM
   • Install 2nd ROM from Internal SD card
   • Install 2nd ROM from External SD card
   • Wipe 2nd ROM data/cache
   • Wipe 2nd ROM dalvik-cache
   • Fix 2nd ROM permissions
     
     What does each one mean, you ask?
     • View current status - This option will show you the stats of the dual booted ROM.
     • Clone 1st ROM to 2nd ROM - This option will copy (clone) the current ROM that you use (for example, CM9) and paste it to the 2nd ROM directory. Takes around 7-20 mins.
     • Clone 2nd ROM to 1st ROM - This options copies the 2nd ROM (after installed of course) and pastes it to the place where the 1st ROM was, replacing it.
     • Swap 1st ROM with 2nd ROM - This will swap the 1st ROM with the 2nd ROM, making the Primary ROM -> Secondary ROM and the Secondary ROM -> Primary
     • Swap 2nd ROM with 1st ROM - This will do the exact opposite of the above option
     • Remove 2nd ROM - This will completely wipe and remove any 2nd ROM files and folders
     • Install 2nd ROM from Internal SD card - This option is to flash the ROM to the 2nd ROM directory from the Internal SD card
     • Install 2nd ROM from External SD card - This option is to flash the ROM to the 2nd ROm directory from the External SD card
     • Wipe 2nd ROM data/cache - This will wipe the 2nd ROM data and cache. When it's done for the first time, it'll create data.img and cache.img and create the folders inside /sdcard/.secondrom, preparing your phone for the 2nd ROM.
     • Wipe 2nd ROM dalvik-cache - This will wipe the dalvik cache of the 2nd ROM
     • Fix 2nd ROM permissions - This will fix the permissions of the 2nd ROM
7. Select the option Wipe 2nd ROM data/cache. This will prepare your phone to flash the 2nd ROM. It takes around 5-7 minutes.
8. After having that done, select the option to wipe the dalvik cache.
9. After all that is done, select either "Install 2nd ROM from Internal SD card" or "Install 2nd ROM from External SD card" depending on the location of your ROM
10. Wait a few minutes for the flash
11. Reboot
12. Press the Home button or volume down to enter the Secondary ROM

___________________________________________

After you have done all that, you're set and you're in the Dual Booting world! I hope that this guide helped you, and if it did, press the thanks button!
___________________________________________

Credits

GokhanMoral - For his amazing kernel
Droidphile - For his great FAQ

Can I dual boot CM11 with MIUI v5?
I'm already running MIUI on the Siyah kernel on my phone.
Android version: 4.1.2 JZO54K
MIUI version: MIUI-4.7.25
Kernel: 3.0.31-Siyah-s2-v6.0b4+

 

[Many40]

Can I dual boot CM11 with MIUI v5?
I'm already running MIUI on the Siyah kernel on my phone.
Android version: 4.1.2 JZO54K
MIUI version: MIUI-4.7.25
Kernel: 3.0.31-Siyah-s2-v6.0b4+

Hello.
1. NO - current ver of siyah (v6 beta) doesn't support dual booting
2. Look for proper Dorimanx kernel which supports that
3. For future - please don't quote whole OP post.
Regards

 

[tdkholmes]

Hello.
1. NO - current ver of siyah (v6 beta) doesn't support dual booting
2. Look for proper Dorimanx kernel which supports that
3. For future - please don't quote whole OP post.
Regards

Oh, okay, actually, the thing is that, there is an option of installing a second ROM provided in the custom recovery (infact all options which are mentioned in the OP), that's why I got confused.

 

[Many40]

Oh, okay, actually, the thing is that, there is an option of installing a second ROM provided in the custom recovery (infact all options which are mentioned in the OP), that's why I got confused.

Understand your confusion however the kernel is in a beta stage (and rather will not be developed any further) and dual booting feature has not been finalized (=doesn't work) by the Dev.
If you looked at "SiyahKernel S2-v6.0beta5" description here:
http://www.gokhanmoral.com/ it would be more clear for you.

 

[tdkholmes]

Hey, you're the expert!
I'm just a noob.
Anyhow, thanks for replying everytime man.
It helped. I know this isn't the right post to put up this problem, but actually i wanted to dual boot because MIUI doesn't allow me to move apps to SD card while CM11 does.
If you have any solution other than switching to CM11 completely, then please let me know by sparing a little bit of your time.
I would really appreciate it.
And it'd be even better if you PM me since this thread isn't the right place to continue this conversation.
Cheers.

 

[osygen]

Will this work on galaxy s3