yashsingh1/xdaforums huggingface dataset:
[Galaxy Note II Q&A, Help & Troubleshooting] pinoypower:
Thanks for your reply. The problem I am having is that I don't have the "Enable Mounting Seconday" in the Dual Boot Menu…
[Galaxy Note II Q&A, Help & Troubleshooting] tetakpatak:
I beg your pardon, I don't understand your text... Please try again :)

Did you mean "create secondary FS partition"?

tetakpatalked from N7100
[Galaxy Note II Q&A, Help & Troubleshooting] RichMD:
I assume he is following the outdated instructions I had in the OP. That was based on an old version of the DB recovery.

7) Ready to flash primary or secondary ROMs: Note: It is probably a good idea to get in the habit of always selecting the FS (primary or secondary) that you want to affect just to ensure you don't wipe the wrong one, etc. Select Dual boot menu > enable mounting of (pri or sec.)... It stays selected until you boot into recovery and change it. You will see recovery flash (reload) with the appropriate FS selected. Obviously, don't select it again - logic loop... :P
[Galaxy Note II Q&A, Help & Troubleshooting] pinoypower:
Yes I was using the 2: Guide / How to Set-up Dual Boot on the original post.

6) Create the secondary partition image: Boot into the DB recovery and select Dual Boot Menu > enable mounting secondary and then select create secondary system image (also under Dual Boot Menu". This will take a couple of minutes. This only has to be done once.

I don't see the "Enable Mounting Secondary" under the Dual Boot Menu. Maybe I am using an older DB recovery, or perhaps an old guide...
[Galaxy Note II Q&A, Help & Troubleshooting] pinoypower:
I'm using DB Recovery v6.0.4.4. from the original post, would you be kind to point me where to download v6.0.4.5?
[Galaxy Note II Q&A, Help & Troubleshooting] tetakpatak:
[MENTION=3465828]RichMD[/MENTION] you are totally right.

I will add on some more places in the OP info that [MENTION=1120012]pinoypower[/MENTION] has missed. I already have mentioned that DerTeufel1980 has changed many features by each version update of both kernel and recovery.

I actually tried to keep upper half of the OP in RichMD's original state and it regards versions up to 6.0.4.4

New part regarding kernel 2.4.5b/2.4.6 and recovery 6.0.4.5 with f2fs support is in the bottom half of the OP. It is difficult to keep all in mind by such complicated things like DB in general, and remembering the features differences between the released versions is an artistry :D

tetakpatalked from N7100
[Galaxy Note II Q&A, Help & Troubleshooting] vhorowitz:
Hi, i've tried to dualboot android stock 4.3 on galaxy s3 with both cyanogenmod and paranoid ROM, but every time i get the message process phone.amdroid.com has stopped and i can't make rom's configuration. Any idea to solve it?

Thanks
[Galaxy Note II Q&A, Help & Troubleshooting] pinoypower:
Thanks very much for your help [MENTION=5051515]tetakpatak[/MENTION] , but I think the problem I am having is related to the Devil Recovery, I think it doesn't get installed correctly as I am missing the "Enable Mounting of Primary...", see the attached photos.

I've managed to create a secondary system partition and flash a rom to the primary partition and it boots fine. I backed it up and restore to the second partition but when I try booting the second rom it's stucked at the Devil Kernel splash screen.
[Galaxy Note II Q&A, Help & Troubleshooting] Mike0505:
sorry for jump in but all is good with your install.

Afterr creating secondary system image you don't need to mount primary or secondary.

You just need to chose manage primary fs or manage secondary fs.(look at the second image you uploaded) when is primary fs mounted in right up corner is fs=1 and screen is blue

and when you chose manage secondary fs in right up corner is fs=2 and screen is red , then is secondary fs mounted. is that clear?

simple

Manage Primary Fs = enable mounting of primary

Manage Secondary Fs = enable mounting of secondary
[Galaxy Note II Q&A, Help & Troubleshooting] pinoypower:
Thanks bud, yes that's exactly what I did. I installed the latest Resurrection Remix in the Primary Fs, made a backup of it, and restored the backup to the Secondary Fs. I tried it many times but I never managed the second rom to boot, rom in the Primary Fs boots fine though.

Would you be able to point to me to an updated guide? I've been reading through this thread the most part of the day, but I must have missed it.
[Galaxy Note II Q&A, Help & Troubleshooting] tetakpatak:
If Resurrection Remix including all apps and data is bigger than 1.9 GB it won't boot as secondary (size limit)

Can you swap primary and secondary ROMs? Just backup your primary now and restore it to 2nd FS partition, then restore Resurrection backup to the primary.

tetakpatalked from P5110
[Galaxy Note II Q&A, Help & Troubleshooting] Mike0505:
Most updated guide is in 1st post.

Simpliest way is when you restore backup to second fs (when you restoring must be selected second fs (red menu)), after restore restart to recovery and install devil kernel trought menu install zip and again into dual boot menu select manage secondary and install zip - devil db kernel in secondary when is red menu selected.

after that again restart to recovery and select priimary or secondary boot partition. thats worked for me.

Seems little complicated but its not once when you figure out . good luck :)
[Galaxy Note II Q&A, Help & Troubleshooting] pinoypower:
Thanks! It's a clean install, I did not install any app before I made a backup. The backup size is only 555.19MB....
[Galaxy Note II Q&A, Help & Troubleshooting] tetakpatak:
Exactly, the features and UI of the recovery has been changed a lot between v6.0.4.4 and v6.0.4.5

The screenshots are visibly done in the v6.0.4.4 version.

My recovery screenshot tool can't create any screenshots of the recent recovery versions anymore (not only Devil recovery, but also latest TWRP and PhilZ versions)

tetakpatalked from P5110
[Galaxy Note II Q&A, Help & Troubleshooting] pinoypower:
Thanks for the help guys [MENTION=5699073]Mike0505[/MENTION] , [MENTION=5051515]tetakpatak[/MENTION] , I got it working at last. Phoenix V17 in Primary and Resurrection Remix in Secondary. What I found out was that the System, Data, EFS, & Storage have to be remounted manually everytime I switch from Primary to Seconday, and vice versa. That's a very small niggle, I think I can live with that! :) Thanks again!
[Galaxy Note II Q&A, Help & Troubleshooting] Mike0505:
That's very good news! Happy to help! Enjoy your dual boot :)
[Galaxy Note II Q&A, Help & Troubleshooting] tetakpatak:
[MENTION=1120012]pinoypower[/MENTION] great, mate.

Thanks for feedback. Have fun with dual boot :)

I will probably add this to the OP as it is important detail. It will be also added on "to do" list for the next recovery update by DerTeufel1980, I will send him all collected at some later point, so when he has again some more time to development I'm sure he will fix few little things. As PhilZ recovery meanwhile runs CWM 6.0.4.8 version the things are going on and on.
[Galaxy Note II Q&A, Help & Troubleshooting] Iqbal Ansari:
When I dual boot with cm11 as first rom and Sammy 4.3 at second. I cannot download media from whatsapp.

Please somebody help.
[Galaxy Note II Q&A, Help & Troubleshooting] tetakpatak:
Please specify: which FS struggles then?

tetakpatalked from the legendary i9000
[Galaxy Note II Q&A, Help & Troubleshooting] Iqbal Ansari:
Secondary FS with stock rom.

I flashed cm11 on primary and then restore nandroid to secondary.

BTW my backup of stock rom is around 3 GB. Could that be the problem.
[Galaxy Note II Q&A, Help & Troubleshooting] tetakpatak:
I would like to help you, but I can't be helpful there as I use stock ROMs for no longer than 10 minutes (just for checking hardware right after purchase, before I root it and install custom ROM :D ) and with my Note 2 it wasn't different.

So maybe some other forum mate will answer you. I remember DerTeufel1980 said where the data from Secondary FS get saved, but I don'tn remember anymore. It was posted between end of January and middle of February in the main thread for devil2/Note2 kernel.

Try meanwhile other way around, as Cyanogenmod even with biggest Gapps is still much smaller than stock ROMs.

tetakpatalked from P5110
[Galaxy Note II Q&A, Help & Troubleshooting] Yakobus:
Newest devil recovery 6.0.4.5 sets the size of the 2nd partition to 1,9 GB. What does the stock ROM say about the available storage?

I am wondering how this can even work as the backup is 1,1 GB above partition size :confused:

If that is really the problem then you could switch things around to get it working - Stock ROM to primary and custom to 2nd.

System and data of the 2nd ROM are stored in /data/media/.secondrom on sdcard0 (primary ROM).
[Galaxy Note II Q&A, Help & Troubleshooting] Iqbal Ansari:
I beleive its because due to restore from TB whatsapp couldnt find its media folder. So I will try again and instead restoring I will install it from playstore.
[Galaxy Note II Q&A, Help & Troubleshooting] Iqbal Ansari:
Please Help!

After trying to dual boot many times I'm having the same issue.

Primary Rom CM11 and secondary rom Stock 4.3. I'm flashing CM11 and restoring stock rom to secondary FS.

My issue is only on stock rom ie secondary rom is that I cant send or receive media in whatsapp and the pictures taken with stock camera cant be saved on memory card and gallery is force closing. I think the issue is secondary rom cannot read the memory card properly.

Any help will be appreciated.
[Galaxy Note II Q&A, Help & Troubleshooting] tetakpatak:
[MENTION=4677320]Iqbal Ansari[/MENTION] and did you try to swap ROMs to opposite FS paritions? CM11 as Secondary and Stock 4.3 as primary?

I have used dr.ketan's V6.1 as stock based ROM and had no problems at all. Did you try to reinstall whatsapp?

tetakpatalked from Nexus 7
[Galaxy Note II Q&A, Help & Troubleshooting] Iqbal Ansari:
Yes i tried installing whatsapp. But i didnt tried swapping them as I keep changing roms so keeping cm11 as primary rom and flashing to it is easy.

As changing roms on secondary rom is bit complicated as it invloves zip modification so.

I think I will try to swap roms.
[Galaxy Note II Q&A, Help & Troubleshooting] tetakpatak:
To be honest, I did not try after the last recovery update if that feature has been changed meanwhile and if the zip still gets modified after installing it to secondary FS like it was the case before (with the older recovery version 6.0.4.4). If you want to avoid modification of the zip file, it will possibly work if you flash nightlies with ADB sideload to Secondary FS.

Maybe even [MENTION=4196889]DerTeufel1980[/MENTION] can answer us those two questions here quickly?
[Galaxy Note II Q&A, Help & Troubleshooting] Yakobus:
Does the media folder exist on your 2ndary system as usual? Do you only get into trouble when trying to download NEW media, but older messages from your backup are fine?

I am still wondering how to get a 3 GB backup working on a 1,9 GB partition. Maybe my reasoning is faulty, but that sounds strange at first glance :eek:

What does your 2nd ROM say about remaining storage?
[Galaxy Note II Q&A, Help & Troubleshooting] Iqbal Ansari:
Yes all the messages works fine except media and stock camera cant save pictures.

I have around 1 GB left after dualbooting.

1.9 GB is for system only while data is saved on sd card (Internal)
[Galaxy Note II Q&A, Help & Troubleshooting] Yakobus:
Of course the data is stored on the internal SD card as usual. I am such a fool :o :eek:

So it is unlikely a question of storage then.

Are you sure that you completely airbrushed WhatsApp without leaving any cache, backups, whatever?

Can you specifiy the error message which your camera app returns when you try to take a picture?

You have only restored your stock ROM's backup to 2nd FS so far, right? If so, I wonder if a clean install of stock would fix your problems. Maybe give it a try? In case of success you could restore everything else from the "corrupted" backup, hoping that it works out this time.

And what about swapping the ROMs around? I would try that even before doing a clean install.

I just cannot imagine it is not possible to get WhatApp and the camera working with stock on 2nd :D Must be corrupted app/system data.
[Galaxy Note II Q&A, Help & Troubleshooting] Iqbal Ansari:
Whatsapp says An error has occured cannot download media.

Camera takes pictures but as soon as gallery is opened is gets FC and pictures are not saved.

I didnt swap the roms as it will not fit my needs. Also I dont directly install to second FS as it modifies the zip so I always restore to secondary FS.

What I want to do is run stock rom on secondary FS and AOSP rom on primary FS. I wish I can do this.
[Galaxy Note II Q&A, Help & Troubleshooting] Eddy119:
Phone randomly crashes with devil kernel

Hi... it's me again...

I installed the stock ROM as my primary and CyanogenMod 11 as my secondary... but when I leave my phone alone in the stock ROM, at first it looks fine, but when I check back after a few hours, the screen is black and I have to force reboot it. By the way, it seems to be on since I have to hold the power button for over 10 seconds... sometimes, it goes laggy before it turns black and sometimes, some apps stop (Unfortunately, <app> has stopped.). Is there any way to fix this? Thanks!!!
[Galaxy Note II Q&A, Help & Troubleshooting] Yakobus:
Okay, good to know. Maybe that helps us later. You never know...

I know that it does not fit your needs, actually. My aim is to figure out what causes the problems you are facing: It is either corrupted data or (unlikely if you ask me) the impossibility to get those apps to run with your current ROM setup.

By the way, I do not install directly to the secondary FS as well.
[Galaxy Note II Q&A, Help & Troubleshooting] chris....:
So I accidentally enabled rainbow mode in the recovery...
[Galaxy Note II Q&A, Help & Troubleshooting] evilperro:
I setup everything correctly and it worked booting into both OS:s (primary TW 4.3, secondary CM 10.2, galaxy s3)

Recently I reinstalled TW 4.3 through ODIN. It replaced the recovery menu with its own, so I can't select secondary ROM to boot into CM.

If I now want to go to back to being able to dual boot, do I simply flash the DT recovery?
[Galaxy Note II Q&A, Help & Troubleshooting] tetakpatak:
This is normal, as Odin will reflash all system files including the recovery. (The storage should remain fine)

Yes, but you will probably have to create secondary FS partition again. Best restore one of your nandroid backups (CM10.2?) on the secondary FS partition and then flash devil2 kernel over both FSs.

tetakpatalked from N7100
[Galaxy Note II Q&A, Help & Troubleshooting] luiscarlosmagno:
I have one issue with my 64gb sdcard! The recovery no mount (E:) partition, so I cant' make nandroid bacups or instalations by the sdcard! My another 4GB sdcard its normal! Sorry for my bad english!

---------- Post added at 04:25 AM ---------- Previous post was at 04:19 AM ----------

Its possibile port "MultiRom" for our beloved SGS3? Some devs port to Moto G, and the hardware are very equivalents, with a large vantage for S3!!! Sorry for bad english!!!
[Galaxy Note II Q&A, Help & Troubleshooting] evilperro:
The only step I took was to reflash the DT recovery and it's working - thanks!
[Galaxy Note II Q&A, Help & Troubleshooting] umer427:
how to install Nemesis rom as primary

hi...i want to install Nemesis rom as primary (needs agni kernel to be installed with it) and blisspop as secondary,,,it it possible...i mean wil there be a conflict with installing agni kernel with devil dual boot kernel????
[Galaxy Note II Q&A, Help & Troubleshooting] tetakpatak:
That won't work.

tetakpatalked from 1+One
[Galaxy Note II Q&A, Help & Troubleshooting] rossenboy:
Hi mates. I have a problem with the dual boot recovery - when I try to create second partition in dual boot menu I have a message "second partition creation fail. check the error log". I try with installed Devil's kernel and without it, but when the kernel is not installed ,I have a message that the creation of the secondary partition is not possible without Devil's kernel. Any help will be highly appreciated.
[Galaxy Note II Q&A, Help & Troubleshooting] tetakpatak:
What does error log display? Which ROM are you running and which device model?

tetakpatalked from 1+One
[Galaxy Note II Q&A, Help & Troubleshooting] rossenboy:
I am running resurrection remix cm12 on note 2 n7100 and in the recovery when I try to make secondary partition it sais that it is not possible without the devil kernel. After the installation of the kernel I have message creation failed and can not use the dual boot option.
[Galaxy Note II Q&A, Help & Troubleshooting] tetakpatak:
CM12 is Android 5.x and this kernel is for 4.3-4.4

tetakpatalked from 1+One
[Galaxy Note II Q&A, Help & Troubleshooting] rossenboy:
Aha, now everything is clearer. But is it possible to start with kitkat rom (for a primary) and to have a cm 12 in the secondary system?
[Galaxy Note II Q&A, Help & Troubleshooting] tetakpatak:
KK kernel cannot boot a LP system.

tetakpatalked from Nexus 7 flo
[Galaxy Note II Q&A, Help & Troubleshooting] myaslioglu:
Is yours cm or touchwiz?
[Galaxy Note II Q&A, Help & Troubleshooting] n4553:
I got it working! Also dual-boot!

Initially I played only with Devil kernel and kernels from nandroids of Cyanogenmod / stock. And for all I used and I'm using Devil recovery. Every time when I flashed DB kernel, the strange behaviour was present (4-5 minutes at boot, no touchscreen, reboot at waking from sleep). And I tried this several times (also restoring nandroids, flashing again kernel... ).

At RichMD recommendation I tried Perseus kernel. This worked from the first time.

After that I flashed again DB kernel and now the previous problem was no longer present! Maybe the Perseus kernel made a change to my system? I don't know.

Thank you very much!
[Galaxy Note II Q&A, Help & Troubleshooting] n4553:
Switch between ROMs

I wanted to automate a bit the switching between the 2 ROMs, without going through recovery, so this is what I've done:

- Install "GScript Lite" , free from Google Play, on primary ROM.

- On first ROM, open this app, press Menu button -> Add script

Script name, eg.: Reboot second ROM

Check the "Need SU"

In the script text, write:

echo 1 > /data/.secondaryboot
reboot

- Save script

- You can add a shortcut to the script to homescreen, by going to All apps -> Widgets, drag "GScript Lite" and then select the name of your script

- Tap the script shortcut, to make sure it's working. Grant the root access, and the phone should quickly reboot in the second ROM

- On the second ROM, install this app, create a new script named eg.: Reboot first ROM

- On the text script, write:

echo 0 > /.secondrom/.secondaryboot
reboot

- Also make sure "Need SU" is checked, save and make a shortcut if you want, and test it.

Hope this helps, until a key combination is added to the kernel.

I would post this to DerTeufel's thread, but I'm a "noob", I don't have rights to post on dev threads.
[Galaxy Note II Q&A, Help & Troubleshooting] JoyMoro:
You need to mount Secondary System in due boot menu

duel boot menu -enable mounting of sec File.

regards

Joy

---------- Post added at 01:14 PM ---------- Previous post was at 12:49 PM ----------

Hi

Tried this on Primary Rom, Its not working. Checking again.n will also test for secondary Rom n let yoiu know

JoyMoro
[Galaxy Note II Q&A, Help & Troubleshooting] JoyMoro:
it is working alright on both rom

thanks
[Galaxy Note II Q&A, Help & Troubleshooting] MajorTom_:
No word yet on how to remove dual boot?
[Galaxy Note II Q&A, Help & Troubleshooting] RichMD:
I will post in the FAQ later today but basically just flash a different recovery such as TWRP or standard CWM and full wipe (format /system and /data) and that should cove it. Obviously, you would need to reinstall or restore a nandroid - I assume only a backup of the primary would work. I will have to check for the special folders on the SD card and list them in the FAQ.
[Galaxy Note II Q&A, Help & Troubleshooting] bdd786:
App2SD script not working

I have successfully made dual boot working on my Tmobile. ROM1 (Primary): Xenon HD and ROM2 (secondary) Jedi Master 13. I have tried to acitvate App2SD script. Not working in either of the ROMs.Please reply.
[Galaxy Note II Q&A, Help & Troubleshooting] RichMD:
Sorry, but I have no idea if App2SD would be compatible. DerTeufel1980 would have to answer that.
[Galaxy Note II Q&A, Help & Troubleshooting] paulove:
I did a nandroid of a Sammy rom from second FS and restored to primary, that is the rom I am using now.

Just remember to choose right FS and mount all partitions needed.
[Galaxy Note II Q&A, Help & Troubleshooting] frenkie9999999:
I would just make a small clarification:

The first time you flash the kernel and recovery,

Going to dual boot options, select File System, primary, and then only now you can create the secondary partition.

the first time I've done the procedure, without selecting a FS, the secondary partition doesn't will create.

:good:
[Galaxy Note II Q&A, Help & Troubleshooting] ravijani:
just 2 questions...

so which works???

both Sammy or CM/AOSP - Sammy ???

and how to revert ??
[Galaxy Note II Q&A, Help & Troubleshooting] RichMD:
In theory, any combination of AOSP and Samsung (Sammy) based.

There does seem to be some ROMs that don't work as well with the dual-boot kernel but I don't have a good list yet.

I have been trying to find time to update this thread with the FAQs such as how to revert. Possibly tonight. ..
[Galaxy Note II Q&A, Help & Troubleshooting] Dingchow:
GENIUS

All work like a charm. I have PACman Rom on primary and Jedi XP on secondary. Everything working.

The one problem was PACman Rom would not boot on Secondary. Was trying to have Jedi XP as primary to start but had to moved to secondary.
[Galaxy Note II Q&A, Help & Troubleshooting] AsfaltSame:
I have the same problem, and I'm running CM 10.1. Isn't Persius a TW kernel? Did you revert back to stock before flashing Persius?
[Galaxy Note II Q&A, Help & Troubleshooting] n4553:
For all my playing with dual-boot I had 2 nandroids of Stock Samsung 4.1.1 rooted and CM10.1 stored on external SDcard. As recovery, only Dual-Boot Recovery and never changed it.

Initially, the Devil kernel always gave me this strange behaviour, and I tried maybe all possibilities.

Then I flashed Perseus kernel having as the ROM the Samsung nandroid. It worked from first time, after that I reflashed Devil kernel and it also worked now! After, I restored CM10.1 on primary and Samsung on secondary and it's working this way (only MTP on Samsung Rom isn't, but I haven't bothered any more).

Perseus-alpha36.3-i9300-CWM.zip from http://xdaforums.com/showthread.php?t=1691401, first post.
[Galaxy Note II Q&A, Help & Troubleshooting] tkasob:
At first, I would like thank you for great guide and sorry for my bad English. I hope, that you understand me. I've done everything according to the instruction (I hope :). At the beginng I had small problems with the second partition ROM (bootloop). Now I have on the primary partition Sammy Rom (Moon Rom v. 6.5). There is no problem with MTP. On the secondary partition I tried succesfully install three different 4.2.2 roms (PAC MAN, Asylum CM 10.1 and currently Helly Bean ROM). And there is the same problem. Play Store app doesn't work (crash), also there is a message, "no external memory" (for exaple, when I open Camera app, Gallery app). File manager shows error message: "Doesn't found any file or folder."

What i've done wrong?

Tom

Wysyłane z mojego Transformer TF101 za pomocą Tapatalk 2
[Galaxy Note II Q&A, Help & Troubleshooting] RichMD:
I just updated the OP with the answer to this very frequently asked question: http://xdaforums.com/showpost.php?p=41953794&postcount=1

I have not included detailed instructions on backup/restore from primary to secondary so post if you have problems.