yashsingh1/xdaforums huggingface dataset:
[Sony Xperia S, Acro S, Ion] letama:
Sure, thanks!
[Sony Xperia S, Acro S, Ion] Felimenta97:
Being uploaded. I will edit as soon as finished.

EDIT: Multi Upload server is done. The others are being uploaded as we speak. Should finish soon.

http://www.multiupload.nl/0I9UV3FL1F

And, I'm curious, what's new o Boot manager 0.7? Still needs to do something more or just delaying the release?
[Sony Xperia S, Acro S, Ion] -Johannes-:
AW: [Tool] Xperia S Boot Manager v0.6, a real dual boot system

Latema, could you repack your alpha 2 of aosp 4.2? Thanks ;)

- sent from xperia s -
[Sony Xperia S, Acro S, Ion] letama:
Thanks! Link updated.

No, I won't add anything to 0.7 as this version is out in aosp. If I do something more, it's going to be another version.

0.7 doesn't bring much, I just added a settings menu that let me hide dual boot to be able to use it for aosp. This settings menu also let you hide the alternate recovery as it has no use for most of you. And a toggle to enable/disable bootloader protection if you want to get rid of bootmanager. I also fixed a caching issue in kernel flashing (hopefully, didn't check it much).

I just miss time to properly package it, aosp took me a lot. It will come soon if I'm happy with current state of aosp.
[Sony Xperia S, Acro S, Ion] mirhl:
afaik letama's 4.2 aosp it's a standalone dual boot
[Sony Xperia S, Acro S, Ion] Felimenta97:
I get it. The toogle for bootloader protection, alternate recovery is nice.

What about an app/option that would force reboot on the other partition? Sometimes I reboot and let my phone while doing something else, and forget to press volume up/down to enter the another partition. Maybe for recovery also? No need to do it now, just add to to-do list :)
[Sony Xperia S, Acro S, Ion] letama:
It's a good idea, it's now easier as I added a special area for settings. I'd rather avoid writing too often on kernel partition, but if you are aware that doing this kind of reboot wears down flash (two writes: one to set the reboot to, one to clear when it boots) and do it wisely, why not. I'll keep that in mind.
[Sony Xperia S, Acro S, Ion] letama:
Sure, it's coming tomorrow...
[Sony Xperia S, Acro S, Ion] letama:
Aosp alpha 2 added for loop and native. I didn't test them.
[Sony Xperia S, Acro S, Ion] akkiannu:
Solved
[Sony Xperia S, Acro S, Ion] -Johannes-:
Re: [Tool] Xperia S Boot Manager v0.6, a real dual boot system

Aosp alpha 2 works good on loop partition ;)
[Sony Xperia S, Acro S, Ion] Nostix:
AW: [Tool] Xperia S Boot Manager v0.6, a real dual boot system

I had problems with any stock based Rom on native partition...

Always the Sony logo and then a black Srceen without bootanimantion.

But I can see, that the screen is turned on :confused:

...sent from my awesome Xperia S...
[Sony Xperia S, Acro S, Ion] letama:
Even with stock firmware from here ?

Try this:

1) Format system in recovery, then install rom, then stock kernel from here.

2) Grab /tmp/recovery.log

3) boot rom. If it doesn't boot, reboot then go to loop recovery and grab /proc/last_kmsg

And post them here, I'll take a look.
[Sony Xperia S, Acro S, Ion] akkiannu:
Could someone please repackage the debrand cm9 ROM please! Please please please?
[Sony Xperia S, Acro S, Ion] mracer164:
Letama could you post tutorial about repacking kernels? I would like to repack NOVA kernel for native partition. It would be awesome!
[Sony Xperia S, Acro S, Ion] _Dref:
It's write on the first page :

You need Ubuntu 64bits (real machine or virtual machine) :

1 - Download, unzip and untar repackager_0.1.zip : http://xdaforums.com/attachment.php?attachmentid=1575722&d=1355909171

2 - Download your rom or your Kernel zip and put it in the repackager folder.

3 - Enter in your repackager folder by terminal and type : sudo sh repackage.sh "rom-or-kernel-zipname" "out-name"

4 - After some little minutes, the script ll return 2 files : bm_native_out-name.zip and bm_loop_out-name.zip

5 - if you don't have permission to take them, type in the terminal : sudo chmod -R 777 *

5 - Copy and Flash the file you need (native or loop) and enjoy (don't forget to Wipe /cache /data /system if firmwares are different than your older ROM).
[Sony Xperia S, Acro S, Ion] mracer164:
Odp: [Tool] Xperia S Boot Manager v0.6, a real dual boot system

An now it's explained really clearly! Thanks mate!
[Sony Xperia S, Acro S, Ion] isoladisegnata:
to Letama...

a little information .. I wanted to ask if it is possible install on the partition loop, SSPEED kernel V8 with Deodex Xperia S Stock ICS Rom .55

.....:eek:
[Sony Xperia S, Acro S, Ion] Akhil:
Re: [Tool] Xperia S Boot Manager v0.6, a real dual boot system

Sorry i am not letama but i know the answer..

Yes you can install the kernel in loop but you need to edit the updater- script for it to work on loop..
[Sony Xperia S, Acro S, Ion] isoladisegnata:
thanks Ap0....are you referring to the script... "repackage.sh" right?
[Sony Xperia S, Acro S, Ion] Akhil:
No no, the script has some problems while repackaging some kernels , so when you repackage kernel like xspeed, elite etc , you need to edit updater-script in the zip folder of the two repackaged kernels otherwise it won't work..
[Sony Xperia S, Acro S, Ion] mracer164:
Odp: [Tool] Xperia S Boot Manager v0.6, a real dual boot system

Which line do I need to edit in the updater-script file? I have repacked Nova Kernel but when I installed it nothing changes
[Sony Xperia S, Acro S, Ion] Akhil:
Re: [Tool] Xperia S Boot Manager v0.6, a real dual boot system

The script repackages the nova kernel pretty well, you don't need to edit anything in it , its for other kernels, after flashing check in about phone , there must be written nova kernel or nova box somewhere , if you find this then you have successfully flashed the kernel
[Sony Xperia S, Acro S, Ion] mracer164:
Odp: [Tool] Xperia S Boot Manager v0.6, a real dual boot system

That's the problem. I succesfully repacked latest cm10 for native and repacked NovaKernel but when I install zip with kernel it doesn't replace anything.
[Sony Xperia S, Acro S, Ion] Akhil:
Re: [Tool] Xperia S Boot Manager v0.6, a real dual boot system

Use the one that i have repackaged, the top of the recent most thanked on the top right side is the link for it, flash it and let me know
[Sony Xperia S, Acro S, Ion] Nostix:
Could someone please repackage this Rom for me?

would be great :)

http://rapidshare.com/files/3563441247/Unlimited Xperia Project v1.2.zip
[Sony Xperia S, Acro S, Ion] mirhl:
Your .50fw for loop partition zip is corrupted

it contains a folder before kernel images

ps: i self repackaged XZXperience rom for loop.. and i can't have root access. i tried .55, .50 and elite

no results

EDIT: found solution

pps: tomorrow repackaged zip will be uploaded
[Sony Xperia S, Acro S, Ion] polthong:
Please someone can help me to remove boot manager. I dont want to use dual boot anymore I want back to use normal boot system with other roms.
[Sony Xperia S, Acro S, Ion] sognare69:
Just install another kernel via flashboot. And thats all
[Sony Xperia S, Acro S, Ion] -Johannes-:
AW: [Tool] Xperia S Boot Manager v0.6, a real dual boot system

Did someone repacked aosp 4.2 alpha 3 yet?

- sent from xperia s -
[Sony Xperia S, Acro S, Ion] letama:
Yes, I'm currently uploading.
[Sony Xperia S, Acro S, Ion] _Dref:
The good new of the day :)
[Sony Xperia S, Acro S, Ion] letama:
alpha 3 uploaded, sorry for the delay... internet connection problem :)
[Sony Xperia S, Acro S, Ion] mirhl:
XZXpericence v1 for loop uploaded

http://d-h.st/3J0

i felt free to replace superSU files, because at first, root was lost

enjoy
[Sony Xperia S, Acro S, Ion] Giblet-dono:
Sorry for being away for a little while!

Could someone repackage KA25 for Native

-> http://d-h.st/NKu

And also P.A.C 19.3.2 (Sony Themed) for Loop?

-> http://d-h.st/Enq

And Nova 1.51 for loop kernel?

-> http://d-h.st/users/hei1125

I know I ask much, but in my defense, I have been away for a while now...

Thanks so much in advance!

It is so much appriciated wat you guys do here!
[Sony Xperia S, Acro S, Ion] fersy:
AW: [Tool] Xperia S Boot Manager v0.6, a real dual boot system

Do i need a repacked Version of P.A.C v19.3.2 on native partition?

And Xperia'd PA ROM would also be great on Native http://d-h.st/mzm

Thanks
[Sony Xperia S, Acro S, Ion] isoladisegnata:
oop 151

KA25 and PAC ROM when I'll have a bit of time;)
[Sony Xperia S, Acro S, Ion] danlivesey:
Re: [Tool] Xperia S Boot Manager v0.6, a real dual boot system

You don't need a repacked ROM for native, I just flash the normal zips. I think you need it repacked if you want to keep your data.
[Sony Xperia S, Acro S, Ion] Akhil:
Re: [Tool] Xperia S Boot Manager v0.6, a real dual boot system

But KA 25 needs to be repackaged because it has a kernel in it.
[Sony Xperia S, Acro S, Ion] -Johannes-:
AW: [Tool] Xperia S Boot Manager v0.6, a real dual boot system

Could someone repack this for loop please?

Thanks in advance ;)

That's it -> http://xdaforums.com/showthread.php?t=2099499

- sent from xperia s -
[Sony Xperia S, Acro S, Ion] Akhil:
Nova kernel 1.51

Loop

Native
[Sony Xperia S, Acro S, Ion] Jean-DrEaD:
I can't boot this... Stuck in FXP kernel logo... How I flash a stock kernel in Loopback partition? :confused:
[Sony Xperia S, Acro S, Ion] Felimenta97:
Haven't tried more yet, but seems that only Xperia Gallery and JB gallery aren't working. QuickPicv worked for me.

Sent from my LT26i with Tapatalk 2
[Sony Xperia S, Acro S, Ion] lilude56214:
Aokp build 2 is rolled out, hope you will work on it soon
[Sony Xperia S, Acro S, Ion] championswimmer:
latest AOKP has compressed kernel so less work for letama ;)

no need to recompile kernel :D
[Sony Xperia S, Acro S, Ion] Felimenta97:
Only him can make your ROM work with his dual boot or you can do it yourself?
[Sony Xperia S, Acro S, Ion] Giblet-dono:
check the first page, there is somewhat of a guide in the 4th or 5th post
[Sony Xperia S, Acro S, Ion] Felimenta97:
Oh, sorry, forgot about that post :/
[Sony Xperia S, Acro S, Ion] letama:
Cool! Good news!
[Sony Xperia S, Acro S, Ion] championswimmer:
i can do it but i cant upload 150mb from laptop (slow upload rate)

1. i make on build server, upload to ftp

2. download to laptop from ftp (my download speed is high)

3. check if it's all right, then i send link at xda to everyone

to make dual boot work i have to unzip and edit my rom on my laptop and upload from here which is not possible (will take 2-3 hours... i don't want to waste :p)
[Sony Xperia S, Acro S, Ion] Felimenta97:
I see. Don't worry. When you or letama have time, you do it :)
[Sony Xperia S, Acro S, Ion] Felimenta97:
I'm with a bug on my AOKP partition. It stays forever preparing the "USB storage" and stays like that... I guess it's consuming my battery...

Enviado de meu Xperia S usando o Tapatalk 2
[Sony Xperia S, Acro S, Ion] Soheil_rf:
Q

I enabled Soft-key button in CM9 137

Now statusbar & Navbar randomly hide by itself when i open any app

here my logcat when this happened

E/OverlayUI( 134): closeOVSession: MSMFB_OVERLAY_UNSET failed. (-1)
E/OverlayUI( 134): closeChannel: closeOVSession() failed.
E/OverlayUI( 134): closeOVSession: MSMFB_OVERLAY_UNSET failed. (-1)
E/OverlayUI( 134): closeChannel: closeOVSession() failed.
E/OverlayUI( 134): closeOVSession: MSMFB_OVERLAY_UNSET failed. (-1)
E/OverlayUI( 134): closeChannel: closeOVSession() failed.
E/OverlayUI( 134): closeOVSession: MSMFB_OVERLAY_UNSET failed. (-1)
E/OverlayUI( 134): closeChannel: closeOVSession() failed.
E/OverlayUI( 134): Queuebuffer failed
E/OverlayUI( 134): Queuebuffer failed
E/OverlayUI( 134): Queuebuffer failed
E/OverlayUI( 134): Queuebuffer failed
E/OverlayUI( 134): Queuebuffer failed
E/OverlayUI( 134): Queuebuffer failed
E/OverlayUI( 134): Queuebuffer failed
E/OverlayUI( 134): Queuebuffer failed

Can anybody help me to fix this issue ?
[Sony Xperia S, Acro S, Ion] Felimenta97:
Also, I don't know if this have to do with this, but the install zip on the stock kernel doesn't work. The flash says it worked, but when I reboot, no files where it needed to be...

Sent from my LT26i with Tapatalk 2
[Sony Xperia S, Acro S, Ion] letama:
This is strange... As far as I can remember, it worked for me. I have to go back to loopback mode to work on new aokp, I'll check with the new version if I can reproduce this problem.
[Sony Xperia S, Acro S, Ion] letama:
It's very unlikely that this one has anything to do with Boot Manager. More likely a cm9 quirk.

What stock kernel ? Stock firmware or cm9 on stock ?

Both were working fine here. What do you mean by no files where it needed to be ?
[Sony Xperia S, Acro S, Ion] hhlong89:
CM10 had the same problem, gallery didn't have pics, but quickpic ( or 3rd gallery) works well.
[Sony Xperia S, Acro S, Ion] Felimenta97:
Stock firmware. Sorry, forgot to mention.

Sent from my LT26i with Tapatalk 2
[Sony Xperia S, Acro S, Ion] letama:
What happens exactly ?
[Sony Xperia S, Acro S, Ion] letama:
Silly question, but did you wipe data/factory reset in cwmod for custom ? Because I just reinstalled cm10 on loopback and gallery is ok. It didn't show anything at first then I remembered I didn't wipe. It took time but few minutes later the gallery started to see images.

I also forgot to install gapps, but I don't think installing gapps change the deal.
[Sony Xperia S, Acro S, Ion] Felimenta97:
The installation zip works prefect. The installation itself. But when I boot my phone to check if the files are there and, well, they are not.

Sent from my LT26i with Tapatalk 2
[Sony Xperia S, Acro S, Ion] Giblet-dono:
Hy!

I had a previous install of KA12 , this rom comes preloaded with the SSPeed kernel.

And it's own modules.

Due to this I cannot turn on my wifi.

I suspect it's because I now use a stock kernel, with editted wifi modules.

Can you provide a zip that installes the stock modules?

Thanks in advance,

Giblet
[Sony Xperia S, Acro S, Ion] isoladisegnata:
I confirm..
[Sony Xperia S, Acro S, Ion] Akhil:
Flash a stock kernel repackaged for loop in loop partition then try to flash this ROM.

But i guess it won't work , but do try this method.
[Sony Xperia S, Acro S, Ion] mirhl:
you need to flash kernel too!

first wipe

then flash XZX zip repacked

and then flash Sony 6.1.A.2.55 repacked for loop

ps: system partition need to be 768MB, because stock (and derived) rom are quite big
[Sony Xperia S, Acro S, Ion] Giblet-dono:
Indeed Oops! Sorry for not noticing it before ;)

Thanks for pointing it out!

I must say this is oen of the best threads in XDA..

Everyone is nice..

On my favourite one X rom thread whenever you ask somethign that has been asked before you will get shouted at, or they will ban you..

So this thread is VERY awesome, thanks for making it this way!
[Sony Xperia S, Acro S, Ion] rolex0815:
Dualboot CM10 <-> AOSP ROM 4.2.1

Just found my way through both threads, but I'm residing with this issue:

I'm currently on a self compiled cm-10 with kernel 3.0.63 (configuration by FXP).

I intend to use the dualboot, whereas the AOSP ROM should be in loop.

What is the right way without losing my conf and data of the current ROM?

Is it possible, since only a Sony Stock-ROM is mentioned to work without data loss?

I already repackaged my self-compiled cm-10.

So I'd need the *native* of my cm-10 and the *loop* of AOSP ROM.

Can someone with knowledge approve? :cool:

TIA!
[Sony Xperia S, Acro S, Ion] Felimenta97:
Re: [Tool] Xperia S Boot Manager v0.6, a real dual boot system

If it is the same thing as other ROMS, and should be, then:

1. Make a backup of your data with CWM.

2. Flash the dual boot kernel.

3. Flash your ROM.

3. Flash AOSP on loop.

If something goes wrong and you need your ROM back, just flash CWM add on for dual boot and restore your data.
[Sony Xperia S, Acro S, Ion] rolex0815:
I managed to install the loop system and it's booting up.

My original cm-10 (native) is now stuck at FXP Bootlogo.

Any ideas to get it to work? For me it seems, the repackaging of my own ROM was not successful.

I don't want to wipe everything by now and restore the CWM backup.
[Sony Xperia S, Acro S, Ion] letama:
Can you provide me the /tmp/recovery.log after flashing it ?

Did you rename the kernel name in your custom rom ?

Basically, repackaging for native means:

1) unpack initramfs, get rid of the recovery and repack it.

2) add zImage and initramfs.cpio.gz (before elf generation or extracted from the elf with sksplit)

3) change the updater-script package_extract_file("boot.img", "/dev/block/mmcblk0p3");

to something like:

package_extract_file("zImage", "/tmp/zImage");

package_extract_file("initramfs.cpio.gz", "/tmp/initramfs.cpio.gz");

assert(run_program("/sbin/kf", "1", "/tmp/zImage", "/tmp/initramfs.cpio.gz") == 0);

Script does that by itself with common roms, but if your kernel is named differently that what it expects, it will fail.
[Sony Xperia S, Acro S, Ion] rolex0815:
The log is attached.

Maybe you have an idea. :)

Thanks for your help!

The screenshot is the contents of my repackaged ROM. Since the names have changed, the repackaging process should have been successful?

EDIT: Should I be concerned about the following two lines?

Running boot script...
sh: /sbin/postrecoveryboot.sh: not found
[Sony Xperia S, Acro S, Ion] letama:
I don't see any install in the recovery.log ? You're sure you grabbed it after installation ?

Yes, the file list looks fine, can you upload also the updater-script ?

*edit*, don't worry about the postrecovery.sh, no problem.
[Sony Xperia S, Acro S, Ion] rolex0815:
Hmm, very strange, I'll try again and provide a new log. File looks better now, but I'm still stuck at FXP Bootlogo.

Hope I get it right, but the updater script is yours, from the 2nd post "repackager_0.1.zip".
[Sony Xperia S, Acro S, Ion] letama:
Ok, log is good, and kernel is properly flashed. So problem is elsewhere. I'm not sure 0.1 handles recent cm10 initramfs with separated cpio, you should grab the script from my git to replace the one from the zip file and try again.
[Sony Xperia S, Acro S, Ion] rolex0815:
Replaced the script as you proposed, but I'm still stuck at FXP Boot.

Now I will try to use the native FXP-206a provided in your first post.

The native file from you is working!

So there must be something wrong with the updater script or my self compiled kernel.

Could it be a problem, that I updated kernel sources within my cm-sources to 3.0.63?
[Sony Xperia S, Acro S, Ion] letama:
No, it shouldn't if it works fine without BootManager. No logcat I guess ?

Can you try to grab /proc/last_kmsg:

1) Start your rom

2) when stuck, reboot with vol+/power trick

3) go to recovery and grab last_kmsg from here

You can also check in zip_out/cpio_native what you have there ?

Last, you were running it as root, right ?
[Sony Xperia S, Acro S, Ion] rolex0815:
I will come back later to your points, have to go for some time. :)

Output of zip_out/cpio_native is:

thomas@ubuntu:~/android/repackage/zip_out/cpio_native$ du -hs
640K	.
thomas@ubuntu:~/android/repackage/zip_out/cpio_native$ ls -lah
total 504K
drwxrwxr-x 8 thomas thomas 4.0K Feb 14 07:15 .
drwxrwxr-x 11 thomas thomas 4.0K Feb 14 07:17 ..
drwxrwx--x 2 thomas thomas 4.0K Feb 14 07:15 data
-rw-rw-r-- 1 thomas thomas 120 Feb 14 07:15 default.prop
drwxr-xr-x 2 thomas thomas 4.0K Feb 14 07:15 dev
-rw-r----- 1 thomas thomas 691 Feb 14 07:15 fstab.semc
-rwxr-x--- 1 thomas thomas 103K Feb 14 07:15 init
-rwxr-x--- 1 thomas thomas 1.2K Feb 14 07:15 init.cm.rc
-rwxr-x--- 1 thomas thomas 2.3K Feb 14 07:15 init.goldfish.rc
-rwxr-x--- 1 thomas thomas 18K Feb 14 07:15 init.rc
-rw-rw-r-- 1 thomas thomas 17K Feb 14 07:15 init.semc.rc
-rwxr-x--- 1 thomas thomas 73 Feb 14 07:15 init.semc.service.rc
-rwxr-x--- 1 thomas thomas 3.5K Feb 14 07:15 init.semc.usb.rc
-rwxr-x--- 1 thomas thomas 1.6K Feb 14 07:15 init.trace.rc
-rwxr-x--- 1 thomas thomas 3.9K Feb 14 07:15 init.usb.rc
-rw-r--r-- 1 thomas thomas 274K Feb 14 07:15 logo.rle
drwxr-xr-x 2 thomas thomas 4.0K Feb 14 07:15 proc
drwxr-x--- 2 thomas thomas 4.0K Feb 14 07:15 sbin
drwxr-xr-x 2 thomas thomas 4.0K Feb 14 07:15 sys
drwxr-xr-x 2 thomas thomas 4.0K Feb 14 07:15 system
-rw-r--r-- 1 thomas thomas 272 Feb 14 07:15 ueventd.goldfish.rc
-rw-r--r-- 1 thomas thomas 5.0K Feb 14 07:15 ueventd.rc
-rw-r--r-- 1 thomas thomas 5.5K Feb 14 07:15 ueventd.semc.rc

Rest will come later.
[Sony Xperia S, Acro S, Ion] letama:
You didn't repack as root, you need sudo su before repack!
[Sony Xperia S, Acro S, Ion] gopiraj_m:
help!

repackaged XZX-xperience by Niaboc, anyone?
[Sony Xperia S, Acro S, Ion] Akhil:
Re: [Tool] Xperia S Boot Manager v0.6, a real dual boot system

Stock ROMs dont need repackaging for native partition , you can directly flash the ROM on native partition.
[Sony Xperia S, Acro S, Ion] rolex0815:
:victory: Up and running!

Thanks, that was the fault.
[Sony Xperia S, Acro S, Ion] mracer164:
Odp: [Tool] Xperia S Boot Manager v0.6, a real dual boot system

Letama, I have an idea about making your dualboot even more awesome than it already is. I am not developer at all so I don't even know if its doable but here we go. What about adding an option in recovery turned on in default that would check in zips we want to flash if there is zimage instead of kernel.elf file there? It'll prevent us from messing with dualboot kernel and and will make our devices unbrickable because the worst thing that could happening in that case is "bricking" one of the boot partitions but we'll still be able to boot into dualboot and try again. I hope I explained my whole idea clearly because english

isn't my mother language.
[Sony Xperia S, Acro S, Ion] Apology11:
AW: [Tool] Xperia S Boot Manager v0.6, a real dual boot system

Its already there!

If you start the recovery there is a protection, so you can only access the part of the boot partition your repacked kernel is in.

If you want to flash a kernel.elf file you try to access the whole boot partition, which is not possible because of the protection and you cant flash the kernel.

Also with the boot manager there is almost no way to brick your device as the repacked kernels get flashed by a kernel flash tool letama included.

Xperia S Tapatalk
[Sony Xperia S, Acro S, Ion] mracer164:
Odp: [Tool] Xperia S Boot Manager v0.6, a real dual boot system

I don't think it works that way because you can always flash non repacked zip and it will get rid of the bootmanager and there is no protection against that. I mean flashing on native partition of course
[Sony Xperia S, Acro S, Ion] Apology11:
AW: [Tool] Xperia S Boot Manager v0.6, a real dual boot system

Which version are you using? In version 0.7 the protection can be turned on in settings. In version 0.6 it should be automatically be protected.

Xperia S Tapatalk
[Sony Xperia S, Acro S, Ion] letama:
No, since 0.6, there is a protection against that. If the kernel is not repacked, the partition is untouched and flashing does nothing. If you're using 0.7 from aosp, protection is disabled by default and can be enabled in settings.
[Sony Xperia S, Acro S, Ion] mindstorms54:
is there any other roms can be the dual system's rom?

because the rom's you provide are too old

0.0
[Sony Xperia S, Acro S, Ion] Akhil:
Re: [Tool] Xperia S Boot Manager v0.6, a real dual boot system

Every ROM on this forum can be MADE to run on dual boot, I know that the second post contains older ROMs because letama has been busy with his personal life and 4.2.1 , so he doesn't update it often and we should not bother him to update it because many of us have started to repackage and upload it in different posts, so you gotta find them or you gotta to learn how to repackage.
[Sony Xperia S, Acro S, Ion] -Johannes-:
AW: [Tool] Xperia S Boot Manager v0.6, a real dual boot system

Read the last 10 pages, there a many links to repacked roms and kernels.

- sent from xperia s -
[Sony Xperia S, Acro S, Ion] fredericcollinss:
Can anyone make gingerbread stock rom that's working fine for S. android 2.3 is much more faster and more free ram than ICS. Please!!!!
[Sony Xperia S, Acro S, Ion] Akhil:
Re: [Tool] Xperia S Boot Manager v0.6, a real dual boot system

Its already done, check first page!