DUAL BOOT for SGY

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Harsh06

Harsh06

Senior Member
Mar 1, 2012
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Shah Alam
Only me n Kurotsugi kun try this?..Irfanbagus thank u so much..and of course kurtsugi too for the meta-inf.
Stock n custom rom both inside my device now.Currently running on 2gigsd n im definitely gonna buy big and fat sd today.
 

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kurotsugi

kurotsugi

Senior Member
Feb 12, 2012
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yogyakarta
Harsh06 said:
Only me n Kurotsugi kun try this?..Irfanbagus thank u so much..and of course kurtsugi too for the meta-inf.
Stock n custom rom both inside my device now.Currently running on 2gigsd n im definitely gonna buy big and fat sd today.
Click to expand...
Click to collapse

ups...I forgot to mention that its actually a slight modified myss's installer script (only changed based on irfan's guide). credits for the original dev. it helps me a lot in understanding those script. :D
 
kentoi me

kentoi me

Senior Member
Feb 12, 2012
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lost city
kurotsugi said:
check this picture. people will get jealous after saw this one (lol)
attachment.php


even if your kernel wouldn't support a2sd, it still gives miracles for our device. I have some new idea's to make use this feature. it will be fun :D
Click to expand...
Click to collapse

woooooooooooooooooooohh..:eek::eek::eek: u rawk bro... sgy now is a monster... too much internal memory... hahah great... need to know that sumday bro... with ur help ofcourse:D:D
 
Harsh06

Harsh06

Senior Member
Mar 1, 2012
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Shah Alam
Im not sure if repencis rom allow u to flash irfan kernel.I started with stock rom.Here what i did.

>Flash Irfan kernel
>Create 4 sd partition block via minitools(fat32,ext3 x3)
>Install custom rom.But b4 installed i replace meta-inf files with Kurotsugi meta-inf
>Create empty file and name it "bootsdcard" in the root of sdcard n reboot.
>It will boot 2nd rom and if u want to revert back the 1st rom,delete the bootsdcard files n reboot.
 
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Dr. Narinder

Dr. Narinder

Senior Member
Nov 20, 2011
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India
Harsh06 said:
Im not sure if repencis rom allow u to flash irfan kernel.I started with stock rom.Here what i did.

>Flash Irfan kernel
>Create 4 sd partition block via minitools(fat32,ext3 x3)
>Install custom rom.But b4 installed i replace meta-inf files with Kurotsugi meta-inf
>Create empty file and name it "bootsdcard" in the root of sdcard n reboot.
>It will boot 2nd rom and if u want to revert back the 1st rom,delete the bootsdcard files n reboot.
Click to expand...
Click to collapse

Create empty file or folder and name it "bootsdcard" in the root of sdcard n reboot
Please clarify
 
Harsh06

Harsh06

Senior Member
Mar 1, 2012
177
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Shah Alam
After successfully installed custom rom with update-script modify,that bootsdcard will load 2nd rom..

Root Ex > sdcard > create new file and name it bootsdcard > reboot
If u success then 2nd rom will boot on your sdcard.Sorry for my bad english.
 
I

irfanbagus

Senior Member
Mar 12, 2012
307
498
ideally you use modified updater-script from your custom rom. only need small change to updater-script. but the one from kurotsugi might be work because most custom rom did the same thing. if someone can upload updater-script from popular custom rom in this forum, i can edited for you. please check post #18

in few days, if i have time, i will write about technical detail of my mod, so other dev can integrated to their kernel or rom.
 
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kurotsugi

kurotsugi

Senior Member
Feb 12, 2012
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kentoi me said:
woooooooooooooooooooohh..:eek::eek::eek: u rawk bro... sgy now is a monster... too much internal memory... hahah great... need to know that sumday bro... with ur help ofcourse:D:D
Click to expand...
Click to collapse

its only one implementation of irfan's work. in my case, I only increase the partition size for the /data. there'll be more fun since there are more several possibilities of its implementation.

Harsh06 said:
Did u mean tht i should use my own update-script from the custom rom instead
using yours sir?
Click to expand...
Click to collapse

nope...you can use mine. I just feel bad because not mention that it is based on myss's script.
 
I

irfanbagus

Senior Member
Mar 12, 2012
307
498
Harsh06 said:
Thanks irfanbagus..If u have time can u help me edit the updater-script from buzzrom 2.1
Thanks in advance.
http://www.4shared.com/zip/VNPlSOW2/META-INF.html?
Click to expand...
Click to collapse

remove ".txt" extension. please double check before use, i am not 100% sure it's working before try it by myself. use "diff" program to show which line i removed.

btw i just realize 2 updater-script that i edited try to mount /dev/block/stl19. that partition is not exist in sgy. anyone know why or it's just bad porting/generator
 

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kurotsugi

kurotsugi

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Feb 12, 2012
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yogyakarta
@irfan: the installer script from myss, old repencis, hybrid, old creed, are basicly same. I've found that they're different only on the sequences, its addtional script like 'print_ui', and the one used to show progress bar. I'm not sure if it will work on newer rom because it has more script to enable a2sd and install the kernel.
 
Harsh06

Harsh06

Senior Member
Mar 1, 2012
177
49
Shah Alam
Well done

irfanbagus said:
remove ".txt" extension. please double check before use, i am not 100% sure it's working before try it by myself. use "diff" program to show which line i removed.

btw i just realize 2 updater-script that i edited try to mount /dev/block/stl19. that partition is not exist in sgy. anyone know why or it's just bad porting/generator
Click to expand...
Click to collapse

Salute..good job, edited for my script worked.Thank u
 

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    irfanbagus
    this is still alpha release and not fully tested. the idea based on http://xdaforums.com/showthread.php?t=1155613 but this is diffrent implementation. i successfully boot using stock rom dxlc1 on internal storage and hybrid 2.1 on sdcard.

    instalation :
    1. flash kenel using odin (or other method for kernel flashing)
    2. make 4 partition in your sdcard
    1st fat-32 for your data
    2nd ext3 for system
    3rd ext3 for cache
    4th ext3 for data
    for testing, i use about 300MB for all ext3 partition
    3. edit updater-script
    - change /dev/block/stl9 to /dev/block/mmcblk0p2 and the type from rfs to ext3
    - change /dev/block/stl10 to /dev/block/mmcblk0p3 and the type from rfs to ext3
    - change /dev/block/stl11 to /dev/block/mmcblk0p4 and the type from rfs to ext3
    - don't use a2sd
    - don't flash boot.img
    Click to expand...
    Click to collapse
    change for hybrid 2.1 rom:

    change line

    Code: 
    mount("rfs", "EMMC", "/dev/block/stl19", "/system");

    with

    Code: 
    unmount("/system");
mount("ext3", "EMMC", "/dev/block/mmcblk0p2", "/system");

    remove line

    Code: 
    package_extract_dir("data", "/data");

    remove all line with word "dtinstall"

    remove this line

    Code: 
    assert(package_extract_file("boot.img", "/tmp/boot.img"),
       write_raw_image("/tmp/boot.img", "boot"),
       delete("/tmp/boot.img"));
    Click to expand...
    Click to collapse
    4. install your edited rom as usual (i use cwm)

    5. done. if you want boot to sdcard, create empty file named "bootsdcard" in your sdcard 1st partition and reboot

    note :
    - you can boot using dual rom but not dual kernel (yet). this one is stock kernel, so no init.d (yet)
    - it does NOT work with a2sd or link2sd
    - like i said it's not fully tested yet. it's only for dev and tester. use with caution
    - boot from sdcard is slower compared to internal storage. little bit laggy i think, but still very usable
    - if you already tested,please report your result

    link:
    http://www.mediafire.com/?6zrkh6a872036x7
    View
    6
    I
    irfanbagus
    kentoi me said:
    at this time,, cant relate buddy.. for newbie like me.. pls make a tutorial for that bro.. great help for us again and more thank can be gain also.. haha... nyc work again buddy
    Click to expand...
    Click to collapse

    i want to make it easier to follow, but (maybe) different rom have different install script. so i just write general method and one example for hybrid, because i only have that rom in my hard disk and my connection too slow to download other custom rom. if someone with large custom rom collection can upload updater-script from custom rom (updater-script only, not full rom), i can edit it for you. it's located in "META-INF/com/google/android/updater-script" inside your custom rom zip file.

    and please, not everybody do something just for thanks meter. someone maybe do it just to make his/her phone better, or just to share, or just to make someone else with more expensive phone jealous :D
    View
    4
    mai77
    mai77
    MarcoToo said:
    /dev/block/mmcblk0p2 on /cache type ext2 (rw,nosuid,nodev,noatime,nodiratime,errors=continue)
    Click to expand...
    Click to collapse

    on my SGY I would not put cache onto sd card. way too slow. just wipe cache after switching to alternate ROM. so you maintain cache speed from NAND.

    maybe I will soon release DUAL STOCK ROM with latest xxli2 version rom, pdroid-ready.

    what ya think ?
    View
    3
    I
    irfanbagus
    MarcoToo said:
    ROM dualbooting is easy to do, because you only have to edit the ramdisk, which is in the boot image.

    Yet you would have to alter the boot loader to load the boot image from bml6 or bml8 instead of bml7. And that's hard.
    And if you fail, you are as close to a hard brick as it gets.

    Also there could be important things on bml6 and bml8.
    Click to expand...
    Click to collapse

    you don't have to. you could just use kexec and wrap using user-space 'bootloader'. i am playing with it few month ago. it successfully load new kernel but for unknown reasons it failed to boot. could be driver or just boot params. someone make kexec hardboot to solve driver issue with kexec, but because i don't think people will use dual boot kernel (including me) i am not try to port to our kernel.
    View
    3
    I
    irfanbagus
    kurotsugi said:
    I've already made one irfan. check on my mediafire link.
    Click to expand...
    Click to collapse

    i did, and thank you for sharing. but different rom need different script, even if usually all updater-script from cutom rom do the same thing, mount, delete, extract, create simlink, chmod file, install a2sd, and install kernel. to install to sdcard only need simple modification, but still need little knowledge about edify.
    View

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