yashsingh1/xdaforums huggingface dataset:
[Atrix 4G General] killmastern3:
Why not try it out mate.. its completely different from cm7.
[Defy General] crakeron:
Here's a simple guide for CM7 users, to install CM9 as a test rom AND keep their CM7 ROM as a main ROM

​

EDIT (01/04/2012):

Guide updated according to new versions of multiboot. Also works for CM10!

DUE TO KERNEL INCOMPATIBILITIES, MY GUIDE IS FOR PEOPLE WHO INSTALL CM9 +CM7 WITH THE SAME KERNEL. (EX: CM7 FROYO KERN + QUARX CM9 FOR FROYO KERN)

This guide is

tested and approved on froyo kernels.

First: I suggest you

backup your rom

before doing anything, but there's no danger don't worry ;)

first download and simply place on your SD-Card these files:

m11kkaa's multiboot:

http://xdaforums.com/showthread.php?t=1364659

This will allow us to lauch our main ROM normaly, and when we want to, launch our 2nd rom (which will be CM9 =D)​

Epsylon3's or Quark's latest version of CM9:

http://defy.wdscript.fr/

Or

http://quarx2k.ru/

Google Apps (optional):

http://goo-inside.me/gapps

Place all 2/3 zips on SD-card.

Download 3filesystem images that will be your virtual partitions for CM9 on Sdcard:

www.mediafire.com/?vvkmy2tx4yeg32m

extract them, and place all 3 of them under /multiboot/CM9 in SDcard

You can also use the app called multibootmanager to do this

Warning: these partitions have size limits (300mb each). Don't run out of space! ;)

People who know how to can create their own partitions, any size they want, threads exist for that

Here are the instructions:

DO NEVER WIPE DATA DURING PROCESS, IT IS NOT NEEDED

1) Go into Bootmenu

2) Choose "recovery ->" to go to the recovery choice menu

3) MAKE SURE you have:

"Custom Recovery" OR "Latest Recovery"

"Stable Recovery"

"Stock Recovery"

4) Choose "Stable Recovery"

6) Install Zip from SD-Card: multiboot_vXXXX.zip

7) REBOOT SYSTEM NOW

8) When you get the blue led, press Vol. Down, you will be in the Bootmenu.

-Choose boot->Set Default->2nd-init

-Go back once

-choose [2nd-system] to boot into the 2nd system menu.

- Here is where you will be able to select 2nd roms to boot. If you put the files on the SDcard in the right place (see above), you should see them in the menu. Other choices are "boot from nand","recovery" or "reboot".

- Choose Recovery(CWM), and then select which rom you want to apply the modifications (CM9). You will now reboot into a recovery for your virtual system.

9) a) Install zip from sdcard: CM9!!! =D

9)b) (OPTIONNAL): install google apps

10) Wipe cache and dalvik cache and then reboot system.

11) Done! reboot. If you want to launch CM9 just press Vol. Down on blue led, boot into 2nd system like above and select CM8 to boot it.

Booting any virtual ROM

will take a few minutes

, sd cards are slower, and this will be first boot.​

Enjoy Epsilon's, Quark's, m11kkaa's and walter79's great work!​

Tutorial video made by Yamandude:

http://youtu.be/aqdQSusw2zw

If one day you don't want CM9 again, simply remove the folder /fsimages/ from your SDcard.

I suggest you keep them in case, you may change your mind one day ;)

You now have double boot, and CM7, and CM9 on your same phone!!!! :D
[Defy General] crakeron:
Troubleshooting:​

My main ROM works, but i get a bootloop with CM9

In latest recovery: wipe cache + Dalvik cache. If you still get a bootloop then wipe data too. ​
[Defy General] hackergnome:
Are u shore u flash multiboot from custo/latest recov?

I always do it from stable recov!
[Defy General] [] AL []:
It IS from custom and NOT latest recovery (step 4). Your "guide" is incorrect and if you ask me, makes things even more complicated than they are...sorry.

In what way is this needed amyway?; there's already a multi-boot thread.

No warning about NOT wiping data in latest recovery...Nothing about the size and limits of the 3 image files...
[Defy General] crakeron:
"Custom recovery" as we know today used to be called "latest recovery" a few months ago. The name changed so i mentionned both names in case people get confused if i say only one and they see the other. What is important is checking if you have three recoveries, not the way you call them.

Seen as CM9 is for test purposes, i doubt that warning not to install to much apps on the Second ROM is very relevant. Even though i will take into account your comment ;)

Sent from my 1Ghz CM7 Defy
[Defy General] crakeron:
If you flash multiboot.zip in the stable mod, you'll change mount settings for your 2nd init partition, and then it will be your main rom that will load from sdcard. I tried this and unfortunately my main com became CM9, and it is not what we want ^^.

Sent from my 1Ghz CM7 Defy
[Defy General] [] AL []:
In fact, my bad: I meant "stable" not custom. m11kkaa multiboot is to be installed in stable recovery and never in latest.

Never wipe data in latest recovery or android secure will be erased and your main boot apps will stop working.

There are incompatibilities between some roms: MSGinger will not work with ics..

...OP need some work to say the least...

Here:

Yes thanks. He might also be interested in reading this one and this one as well on this. ;)

Edit:

And i don't know about wajkiui, but there's is a problem with MSGinger though; so be warned!

Just give it a shot anyway... but if there was ever a reason to make a nandroid backup of your current build before jumping into something, I think multiboot calls for it...:p

L.E.: and while I think about it: one drawback I've noticed from multiboot is that once you boot back into your main rom, the battery stats are screwed up (or to the state they were when you left for the 2nd-boot). So give your phone a nice long charge to fix this or don't complain about eventual steep battery drop...[/QUOTE]
[Defy General] [] AL []:
That is incorrect...that's how I did (and others and how m11kkaa's instructions were at first _ I believe) and CM7 IS my main boot and ics my 2nd boot. And multiboot zip most probably can be install with both when you think about it. It's ICS that you absolutely need to install in latest/custom recovery... that was my last comment here good luck with this thread.
[Defy General] crakeron:
Yeah i've just re-done it all by flashing the multiboot in stable recovery, both work you're right ^^

Sent from my 1Ghz CM7 Defy
[Defy General] royale1223:
Great guide. Thanks.
[Defy General] tvg:
and how to uninstall 2nd boot now?

Screwed my Cyanogen 7.1: cannot run any external keyboard, language is always English after reboot.
[Defy General] crakeron:
I wouldn't bother with uninstalling the multiboot function. But if you don't want to use your 2nd rom anymore simply take the /fsimages/ folder of your sdcard.

If one day you change your mind, copy them back ;). Multiboot may go away if you change anything to do with bootmenu in your main ROM (CM7).

Remember: if you don't want the 2nd Boot anymore, simply take the partitions under /fsimages/ off your card

P.S. You should have a chat with epsylon and m11kkaa about the issues you mentionned

Your welcome =)
[Defy General] tvg:
I tested CM9 and deleted /fsimages.

I reflashed many times using SBF, fixed SBF, omg, at least ten times.

And my CM7 (a new instance) does not save the language I choose after a reboot.

And any keyboard except the built-in one also hangs (The application has stopped etc).

Help, I need to fix it back =( I just cannot understand why I reflashed all the things thoroughly and still I can't get just the normal CM7 back =(

---------- Post added at 12:59 AM ---------- Previous post was at 12:58 AM ----------

Thank you, I will try...
[Defy General] Motivateme:
10x for detail Explanation; Can I translate this and post into Korean forum?
[Defy General] lhpeng654321:
CM9现在还不成熟，系统也有bug吧
[Defy General] crakeron:
Sure feel free :). Put a little link to this thread somewhere as a source and you can ;)

Sent from my 1Ghz CM7 Defy
[Defy General] crakeron:
Did you backup before starting any of the instructions as i suggested? It's a wierd issue you have there =/ ....are you sure it has nothing to do with settings you may have changed? What do the dev's say about it?

Sent from my 1Ghz CM7 Defy
[Defy General] lenidas:
jejeje thanks for your tutorial, now maybe if I can install it without problems
[Defy General] crakeron:
How did it go? ;)
[Defy General] Pirmas:
I tried to install it, but no luck. After reboot I am stuck on Cyanogoogle logo forever... Wonder what could be wrong?
[Defy General] crakeron:
One of the may builds has broken super user/root (8th may?)
[Defy General] crakeron:
Thread updated to re-accord with changes in multiboot/recoveries.

Does anybody know how to make screen shots whilst in recovery? If possible/other method
[Defy General] loyer:
It seems that the fsimages files are not recognized by my bootmenu.

I tried both ways, copying the files provided as well as creating my own ones using Vibhinna 1.10. I also tried various versions of multiboot

The menu which I get when booting to 2nd boot is as follows:

[empty field]

Boot from NAND

Recovery(CWM)

Reboot

When I enter Recovery(CWM), I have:

[empty field]

NAND(real system)

--Go Back.

And that's all, I've never saw any of the folder names which I gave for fsimages (eg. CM9), regardless of the versions of bootmenu/multiboot which I used.

What can be the mistake in my case?
[Defy General] antukubo:
you should boot from 2nd-system
[Defy General] loyer:
Thanks for your suggestion, but I've already tried that too.

The example which I provided was from the earlier version of multiboot, where no 2nd-system option was provided.

Anyway, to do a second check, I flashed the latest version of bootmenu+multiboot (touchscreen), and after entering the 2nd-system option in the Boot menu, I have only:

[empty field]

Shutdown

Also, the upper is what is displayed when I set the '2nd-system' as the default boot option.

I'm running CM 7.2.0 as the main system. The path to the image files on the SD card is:

/multiboot/CM9/cache.img

/multiboot/CM9/data.img

/multiboot/CM9/system.img
[Defy General] antukubo:
@loyer

From my understanding, you just created fsimages but haven't flash any ROM yet. The instruction below is base on Touch Bootmenu, Multiboot v0.7 and TWRP

- bootmenu -> mutiboot -> recovery -> stable recovery -> CM9 (base on your folder name)(* this will bring you to TWRP)

- install -> (browse for your CM9 zip file) -> swipe to confirm flash -> wipe cache & dalvik

- ** optional ** - install -> (browse for gapps zip file) -> swipe to confirm flash

- reboot to bootmenu again

- boot -> 2nd-system -> CM9 (* for your info, i use 2nd-init as my default boot)

- done
[Defy General] loyer:
OK, I've finally solved the issue by replacing the SD card with another one. Now everything is recognized and works fine. Still, don't know what may be the problem with the card, since all the data is perfectly accesible.

Well, thanks once again for the info!
[Defy General] 43358005:
Many thanks for the guide!
[Defy General] no1chan:
how about multi-booting miui and cm9?
[Defy General] shensuiren:
good job! dual boot with mutiboot is very fantasy:good:
[Defy General] crakeron:
You're welcome ;)

I'll have a look. Some while ago it was impossible. It may have changed.

Motorola Defy, CM7 @ 1Ghz + CM9 multiboot

[Guide] Install double boot CM7 + CM9

[Guide][Root needed] Unsimlock your Defy

[Mod/Fix][APP]Messaging apps with ENTER button enabled!
[Defy General] fabrquila:
Nice job guy. But this is actually useless because CM9 is so stable.

Anyway, thanks.
[Defy General] crakeron:
Thanks. At least it's there for the ones who need it. Besides, i still haven't updated to CM9 yet, i don't find it good enough. Maybe when an RC will be released, which i heard would be soon
[Defy General] nidhish91:
Ok so if I want to flash JB on my Defy, all I have to do is flash multiboot, go in the recovery and flash the 4.1.1 ROM and just select the desired ROM during reboot. Right?
[Defy General] Defy@1.1Ghz:
Great guide, i'm using it for testing ROMs ;)
[Defy General] crakeron:
Seems correct ;)

Motorola Defy, CM7 @ 1Ghz + CM9 multiboot

[Guide] Install double boot CM7 + CM9

[Guide][Root needed] Unsimlock your Defy

[Mod/Fix][APP]Messaging apps with ENTER button enabled!
[Defy General] nidhish91:
worked good. Thanks.

S3nt fr0m my D3fy/w1u1 GB st4BL3
[Defy General] claudiobastos:
Do you flash a kernel too, cause I couldn't put it too work.

I did:

Recovery multiboot

Wipe data/cache/dalvik

Flash kernel froyo

Flash cm10 quarx 120718

Flash gapps

Flash battery fix

Wipe cache/dalvik

What I did wrong?
[Defy General] crakeron:
No need to flash kernels, especially not in the multiboot recovery. All you have to do with rhe kernel is make sure your real ROM and your virtual ones are for the same kernel. ("Defy kernel" or "green lense kernel" or defy + etc)

Motorola Defy, CM7 @ 1Ghz + CM9 multiboot

[Guide] Install double boot CM7 + CM9

[Guide][Root needed] Unsimlock your Defy

[Mod/Fix][APP]Messaging apps with ENTER button enabled!
[Defy General] Cocobillys:
Thanks mate!
[Defy General] pratikshinde:
Problem with JB on multiboot

Hello,

I flashed Quarx 25 Aug nightly build on SDCARD in multiboot, its not booting only I get blank screen,

then after a few seconds boots my main ROM CM7.2.

I tried installing JB rom twice as multiboot, not working. Also tried flashing with and without kernel.

:(

Has anybody succeeded to install JB as multiboot?

Thanks
[Defy General] antukubo:
i'm using CM7.2 Stable (nandroid) and Quarx CM10-120825 (multiboot) without any problem. Not even need to flash any kernel. My device is MB525 by the way...
[Defy General] pratikshinde:
Hello antukubo,

Could you tell me what steps you followed to get it work,

for me, when I select JB for booting in secondboot, screen goes blank and after some time restarts in CM7.2(nand).

Thanks
[Defy General] antukubo:
@pratikshinde

It is actually quite straight forward. I use touchbootmenuV2.0beta_multibootV0.8 + TWRP-2.1.1. For the images, you can use fsimages from m11kkaa's multiboot thread or Vibhinna r1.10.beta from royale1223. I hope you know how to install each one of them.

** tips **

Once you have downloaded Quarx CM10-120825, open the zip file using explorer (es explorer, root explorer, etc) to make sure the zip file is fully usable. If you cannot open it, that's mean the zip file is corrupted (only halfway downloaded) and you need to download again.

** steps **

You can follow the steps here. Just change 'CM9' to your Quarx CM10 zip file and folder.

Well, good luck buddy!
[Defy General] mastsethi:
help multi boor error

I am following the guide but I get a multiboot error each time. Comes up after I select CM9 in the CWM mwnu, I am on CM7 latest nightly. Please help

My device is Defy.
[Defy General] Anarkista7:
Delay Boot

Hi everyone.

I have a couple little issues. I would ask if they are normal, or just happen to me...

1. On BootLoader going to Boot and when try to Boot 2nd system, sometimes need wait arround 35 to 55 Secs before click on system folder to boot. If i select any rom on the list, after or before this time, when i made my choose the cell stuck it and just taking off the batt works again.

(i try waiting until 30 mins and no boot, no change, no answer to touch, etc Just Freezed)

If i make my selection into the time (35min - 55max) the 2ndSys boot normally.

2. I updated my internal system to the last nightly CMX QuarX. After tunning the cell (including move a little the OV And UV) i flash the "touchbootmenuV2.0beta_multibootV0.8-20120829-signed.zip" MultiBoot File, after that, i review the CPU Settings on BootManu and I have only 3 governors (Vsel1, Vsel2, Vsel3 y ---) Before the flash the MultiBoot File i had 4 Vsel's. why lost one?

Do you know if this is normal or is a fixable issue?.

I Have a MB526

BTW. Someone ask if it is possible to boot JellyBean from SD?, i i did it and it works, just the kernel is careful thing, must be the same or not to boot. At least it's for me, but i read it, and it is a req 4All.

Thanks for your opinions and excuseme by my english redaction.
[Defy General] smashedup:
Hey guys,

I managed to boot up my 2nd rom (CM9-NIGHTLY-121116-Defy, first is CM7.2-stable)

But for some reason I can't get root access in my 2nd rom. I got superuser installed but no popup appears and even if I tell superuser to grant root-access automatically, it won't (but I can see the inquiries in the log).

Any ideas anyone?

Thanks alot!

Martin
[Defy General] manishgkasera:
MS2Ginger 5.0 and PACman 4.2.2

Hello everybody,

can i use MS2Ginger 5.0 from here and PACman 4.2.2 from here as dual boot, the reason i asked is as per the thread MS2Ginger has custom kernel?

please suggest.
[Defy General] danhtho:
I'm using CM9, how can I install CM7.2 as virtual ?
[Defy General] wijiji:
Lets try this, look good.
[Defy General] pgreed:
you post just to make some noise and points?
[Defy General] Motivateme:
Please say English...
[Defy General] Motivateme:
NOTE: You can't use this method for CM9 build after 07-12; New build uses different kernel with CM7.

Multiboot works with single kernel, not each other...
[Defy General] memz180:
I tried to install the latest still not working im guessing the latest is for 2.3.4 and my current is nordic which is 2.2.2 im using multiboot just gets stuck at M and not moving

If I delete the boot.img then it fails to install

Its either I have to update the kernal im thinking to 2.3.6 the latest maybe by nandroid backup

I've got the red lens defy if anyone can help please pm me thanks
[Defy General] crakeron:
The method no longer works for the 7-12 release, even i don't understand WTF is going on with all these changelogs ><. CM9 is getting veeeery complicated right now with all these kernel compatibility problems :/.

For info, releases 2-Dec and 5-Dec work, install them if you want to try with a simple method :)

Sent from my 1Ghz CM7 + CM9 Defy
[Defy General] teelk:
Same problem as memz180 and pirmas (page2), i'm stuck on google/cyanogen/moto logo !

Also i'm using cm7.1 official release not QuarxCM7 but i don't think it really matters right ?

Hope someone can help us...
[Defy General] InflamedSoul:
Had the same problem, for making the phone work again i flashed the blur SEA 2.2.2 sbf. BUT i guess i know what could work. First time i tried ICS I had a 2.2.2 version installed, restored a 2.3.5 CM7 nightly and later the 2.3.7 CM7 stable. Last step was just trying to update from CM7 stable to CM9 12-7 build. My next attempt will be: Testing a 2.3.4 nandroid backup, and when that works im gonna flash the full 2.3.4 SBF and then CM9. Anything against it? :)
[Defy General] vehi_soc:
that sounds incredble,but i like it,just wait cm9 for stable.
[Defy General] memz180:
Im using the cm72 from the nightly page latest 111204 I don't think official and quarx/epy3 will make a difference the reason its not booting is our kernal it needs to ne updated from 2.2.2 to 2.3.4 not sure what to do at the moment best thing is to wait for a stable release of cm9 with everything working then worry about updating kernals and roms but for now cm7 it is for me anyways
[Defy General] crakeron:
Yep that is correct, because you need to change kernel to 2.3.4, you can no longer multiboot.

I'm pretty unhappy with the way CM9 has turned out because installing it is now complicated, and testing it with a multiboot is not possible :(.

Neverless, if you have never tested it and really want to, use my method to test the 2-Dec release, that one works (because it is based on 2.2.2 kernel, "ours")

Sent from my 1Ghz CM7 + CM9 Defy
[Defy General] Pirmas:
Yes, older nightly works with CM72 in multiboot. Tried, and forgot, waiting for more stable and fully working version of CM9. Thanks to all for info...
[Defy General] crakeron:
You're welcome ;)

Sent from my 1Ghz CM7 + CM9 Defy
[Defy General] colderain:
you can use a CM with the 2.3.4 kernel .
[Defy General] crakeron:
Yeah i know...i just don't know if i want to do that yet....maybe in a few weeks
[Defy General] tausift0:
No Network

The main ROM works fine but there is no network in the second boot (CM9).

How to fix it..??
[Defy General] crakeron:
No idea sorry. That's a problem to do with CM9, i suggest you have a look on the CM9 thread ;). Glad to see my guide helped you =)
[Defy General] tausift0:
Ya thank you...you did an awesome job. I followed it and got multi boot on my defy.

I want to know if you get network on both roms..?
[Defy General] crakeron:
Personnally i have no problems with network. I've read that network won't work on CM9 is you use PIN code security. Try disabling that and rebooting

Sent from my 1Ghz CM7 + CM9 Defy
[Defy General] mostrow:
Great guide, I'm wondering if I did something wrong:

I've got the CM7.1 running, did all the steps and got the CM9 running past the logo... but when it starts, I'm stuck at the Setup Wizard: 'Touch the android to start', when I do, it force-closes and starts again. On a note, it shows my device as 'MB526' (Defy+). I'm using a Defy v1(MB525)

I can't understand as I got the CM9 Jan-29 Jordan 2.2 (by Quarx) release. Afaik, Jordan is the defy v1 =/

But so far, no harm done. My CM7 is still running fine.
[Defy General] crakeron:
Thanks :). Don't worry your CM7 should be fine anyway ;). Never heard of that problem :/, but for sure it's related to CM9 so have a look in the CM9 thread if other people have it. Have you tried avoiding this wizard? Like closing it or pressing home or stuff? How about a Dalvik Wipe too (in latest recovery of course, not in the CM7 recovery) ?

Sent from my 1Ghz CM7 + CM9 Defy
[Defy General] xpress7:
Thanks boss.. :) I tried it on my Defy with Wajkiui rom along with CM9 (of course, Froyo kernel).. Both are working preferctly.. :D
[Defy General] stanucc:
Sorry for my english!

Can it work on defy+?
[Defy General] bone101:
2.3.4 ¿ Works with ?

2.3.6? Kernel ?

Could i flash cm7 kernel on those upper? Speak Defy +

Or use the right,

fixed like sotck is ,

and every thing work ?

CM7 froyo stable

Cm9 froyo in 2nd boot
[Defy General] crakeron:
Yep it should work. Make sure you use the same kernel for CM9 than with your main rom (i'm guessing 2.3 kern?)

Sent from my 1Ghz CM7 + CM9 Defy
[Defy General] crakeron:
Hmm i don't think 2.3.6 is good. People get locked on it so if you mess up with that kerned then you're screwed.

2.3.4 should work, check around in eppy's thread whether you have to do something special after flash.

Otherwise you could flash a fixed froyo sbf with rsdlite (that way you have the froyo kernel), and double boot CM9 for Froto kernel (quarx's CM9).

Have a read about doing it with gingerbread kernels, it should work, i read somewhere you must flash a boot.img/devtree after the install (i think).

Sent from my 1Ghz CM7 + CM9 Defy
[Defy General] stanucc:
I try with cm7.2 and cm9, but when I launched the 2boot the phone is locked on the logo (same kernel)
[Defy General] manishgkasera:
thanks a lot, running miui 2.1.6 + CM9 froyo kernel, green lance :-)
[Defy General] crakeron:
Does CM7.2 work?

Sent from my 1Ghz CM7 + CM9 Defy
[Defy General] stanucc:
yes, cm7.2 work, cm9 don't work
[Defy General] bone101:
Ive tried one time ago with gb kernel On my defy... telephone didnt work....

Flash froyo kernel on defy+ ? ¿

It wont work i thought because of no downgrade !!

So ... i think on defy+ it wont work.

Pls. Korrekt me if im wrong
[Defy General] crakeron:
Try data +cache + dalvik wipe in CM9 recovery (latest recovery)

Sent from my 1Ghz CM7 + CM9 Defy
[Defy General] crakeron:
No idea :/...ask around for instructions on double booting with GB kernel, even in this tjread tjere may be people who have managed. Even though you should find everything (maybe a special manipulation) in the official CM9 for Gb thread

Sent from my 1Ghz CM7 + CM9 Defy
[Defy General] stanucc:
I will try tonight, I restored my phone
[Defy General] stanucc:
yeahh, now it work! thanks crackeron
[Defy General] crakeron:
You're welcome :)

Now for other people remember: if main rom works and you get a bootloop with CM9, try and wipe in LATEST Recovery (step by step)

1) cache + dalvik

2) see if it works

3) if not, wipe data and see again

Sent from my 1Ghz CM7 + CM9 Defy