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[MOD]+[Guide] MultiROM

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View Poll Results: Do you use MultiROM on AOSP ROMs or CM11s?

  1. AOSP

    31.6%
  2. CM11s

    68.4%
  1. Sanjeev31aug
    Jelly Bean Oct 16, 2014

    Sanjeev31aug , Oct 16, 2014 :
    First of All I would like to Thanks @KINGbabasula from XDA for making this possible on OnePlus One. I liked it so I thought it should be on OnePlus Forum.

    More Updates, Personal Guide and Experience is HERE.

    XDA Source
    ====================================================================
    Introduction

    [​IMG]
    MultiROM is one-of-a-kind multi-boot mod for Oneplus One. It can boot any Android ROM as well as other systems like Ubuntu Touch, once they are ported to that device. Besides booting from device's internal memory, MultiROM can boot from USB drive connected to the device via OTG cable. The main part of MultiROM is a boot manager, which appears every time your device starts and lets you choose ROM to boot. You can see how it looks on the left image below and in gallery. ROMs are installed and managed via modified TWRP recovery. You can use standard ZIP files to install secondary Android ROMs and MultiROM even has its own installer system, which can be used to ship other Linux-based systems.


    Features:

    * Multiboot any number of Android ROMs
    * Restore nandroid backup as secondary ROM
    * Boot from USB drive attached via OTG cable​

    Warning!

    It _is_ dangerous. This whole thing is basically one giant hack - none of these systems are made with multibooting in mind. It is no longer messing with data partition or boot sector, but it is possible that something goes wrong and you will have to flash factory images again. Make backups. Always.

    Installation

    Firstly, there are videos on youtube. If you want, just search for "MultiROM installation" on youtube and watch those, big thanks to all who made them. There is also an
    awesome article on Linux Journal.

    You can install it either from MultiROM Manager app or from this guide:

    Note 1: Your device must not be encrypted (hint: if you don't know what it is, then it is not encrypted).

    MultiROM has 3 parts you need to install:

    • MultiROM - download the ZIP file from second post and flash it in recovery.
    • Modified recovery - download the IMG file from second post and use fastboot or Flashify app to flash it.
    • Patched kernel - You can use either one of the stock ones in second post or third-party kernels which include the patch, you can see list in the second post. Download the ZIP file and flash it in recovery.
    You current rom will not be erased by the installation.
    Download links are in the second post.

    Adding ROMs

    1. Android
    Go to recovery, select Advanced -> MultiROM -> Add ROM. Select the ROM's zip file and confirm. As for the space, clean installation of stock 4.2 after first boot (with dalvik cache generated and connected to google account) takes 676mb of space.

    2. Ubuntu Touch
    Use the MultiROM Manager app to install Ubuntu Touch.
    We still don't have Ubuntu Touch

    Ubuntu Touch is in development - MultiROM will have to be updated to keep up with future changes in Ubuntu, so there's a good chance this method stops working after a while and I'll have to fix it.

    3. Firefox OS

    Firefox OS is just another Android ROM from MultiROM's point of view, so add it as if it were Android
    Using USB drive
    During installation, recovery lets you select install location. Plug in the USB drive, wait a while and press "refresh" so that it shows partitions on the USB drive. You just select the location (extX, NTFS and FAT32 partitions are supported) and proceed with the installation.
    If you wanna use other than default FAT32 partition, just format it in PC. If you don't know how/don't know where to find out how, you probably should not try installing MultiROM.
    If you are installing to NTFS or FAT32 partition, recovery asks you to set image size for all the partitions - this cannot be easilly changed afterward, so choose carefully. FAT32 is limited to maximum of 4095MB per image - it is limitation of the filesystem, I can do nothing about that.
    Installation to USB drives takes a bit longer, because the flash drive is (usually) slower and it needs to create the images, so installation of Ubuntu to 4Gb image on my pretty fast USB drive takes about 20 minutes.
    Enumerating USB drive can take a while in MultiROM menu, so when you press the "USB" button in MultiROM, wait a while (max. 30-45s) until it searches the USB drive. It does it by itself, no need to press something, just wait.

    Updating/changing ROMs

    1. Primary ROM (Internal)
    • Flash ROM's ZIP file as usual, do factory reset if needed (it won't erase secondary ROMs)
    • Go to Advanced -> MultiROM in recovery and do Inject curr. boot sector.
    2. Secondary Android ROMs

    If you want to change the ROM, delete it and add new one. To update ROM, follow these steps:
    • Go to Advanced -> MultiROM -> List ROMs and select the ROM you want to update.
    • Select "Flash ZIP" and flash ROM's ZIP file.
    Source code
    Thanks a lot to Tasssadar for creating this awesome utility.

    Thanks to ATMOSF3AR for his Oneplus One template

    XDA: DevDB Information
    MultiROM, Tool/Utility for the ONEPLUS ONE

    Contributors
    KINGbabasula

    Version Information
    Status: Stable
    Current Stable Version: 28a


    Created 2014-08-02
    Last Updated 2014-09-06


     

    Attached Files:

    Last edited: Oct 17, 2014

    #1
  2. Sanjeev31aug
    Jelly Bean Oct 16, 2014

    Sanjeev31aug , Oct 16, 2014 :
    Downloads

    1. Main downloads

    MultiROM: Zip

    Modified recovery (based on TWRP): recovery.img

    Kernel with kexec hardboot patch for aosp roms only (no cm11s): Zip
    Other supported kernels: AK, Franco.Kernel, Furnace

    You need to have kernel with kexec-hardboot patch only in primary ROM

    Nicely ask your kernel developer to merge
    this https://github.com/KINGbabasula/andr...55e062dea854bc, thishttps://github.com/KINGbabasula/andr...7e52df332ce743 and thishttps://github.com/KINGbabasula/andr...3584d2f9fa10b9.

    2. Uninstaller


    MultiROM uninstaller: Zip
    Flash this ZIP file to remove MultiROM from your device. It will erase all secondary ROMs. If you don't want MultiROM menus in recovery, re-flash clean TWRP, but it is not needed - those menus don't do anything if MultiROM is not installed.
    FAQ and other notes

    About security

    In order to make multi-booting possible, MultiROM has to sacrifice some security measures. Firstly, on secondary Android ROMs, /system is not mounted read-only. While there are other things preventing malicious software from messing with /system, this might potentialy make it easier for such software to attack that system.
    Next, MultiROM doesn't work with /data encryption. Not many people who use custom ROMs also use encryption anyway, so that isn't much of a concern.

    What do the ROMs share?

    All ROMs are separate, except /sdcard, which is shared between all Android ROMs.

    How many ROMs can I have?/Where are the ROMs stored?

    You can have as many ROMs as you can fit in your /sdcard. All the ROMs are stored in /sdcard/multirom/roms or on an USB drive. This folder is unaccessible in Android, to prevent mediascanner from scanning it. You can either in recovery, or obtain root and go to /data/media/0/multirom/roms.

    Can I have different versions of Android working alongside

    Yes. As long as you select "Don't share kernel" when installing the secondary ROM, the systems are separated.

    The menu with all the ROMs won't show up during boot, how to fix it?

    Either re-flash the MultiROM zip or go to recovery, Advanced -> MultiROM -> Inject curr. boot sector.

    The reason for this is that something rewrote your boot.img, which happens for example when you flash a kernel. MultiROM's boot menu is part of the boot image, so it has to be added into it again.

    The boot animation shows only the last part on primary ROMs, why?


    Because the framebuffer gets blanked for a few seconds after it gets closed by MultiROM.
     
    Last edited: Oct 16, 2014

    #2
    varana, minecabla, Eterno and 6 others like this.
  3. Sanjeev31aug
    Jelly Bean Oct 16, 2014

    Sanjeev31aug , Oct 16, 2014 :
    In this Post I will tell you my personal guide regarding Correctly Installation of MultiRom on OnePlus One and issues I have faced during that procedure.

    Getting Ready

    Note :- I Personally Used Franco Kernel nightly r25 on CM11S 38R, because on nightly r26 Wi-Fi was connecting and Disconnecting like anything (every 2nd second), so I don't recommend using Franco Kernel nightly r26 built.
    • Uninstaller
      • MultiROM uninstaller:Zip
    Flash this ZIP file to remove MultiROM from your device. It will erase all secondary ROMs. If you don't want MultiROM menus in recovery, re-flash clean TWRP, but it is not needed - those menus don't do anything if MultiROM is not installed.

    Installation

    Firstly, there are videos on youtube. If you want, just search for "MultiROM installation" on youtube and watch those, big thanks to all who made them. There is also an awesome article on Linux Journal.

    Note 1:- Your device must not be encrypted (hint: if you don't know what it is, then it is not encrypted).
    Note 2:- Before Flashing MultiROM:Zip, Make sure you Select your Prefered Runtime Cache(ART or Dalvik), as If you Select it after Flashing MultiROM your Screen will go Blank on boot and there will be no coming back except ReFlash your Stock ROM.

    Note 3:- Also Do not clean your Cache from Recovery or anywhere after Installing MultiRom. it Will result you to Blank Screen on Boot.
    Note 4:- Do not reflash any other Kernel after Installing MultiRom as it will result you to Blank Screen on Boot.
    • Option 1
    • Option 2
      • Modified recovery - download the IMG file recovery.img and use fastboot or Flashify app to flash it.
      • MultiROM - download the MultiROM:Zip file and flash it in recovery.
      • Patched kernel - You can use either one of the stock ones from above section(Getting Ready) or third-party kernels which include the patch, you can see list in the above Section(Getting Ready). Download the ZIP file and flash it in recovery.
    Note :- I Personally Used Franco Kernel nightly r25 on CM11S 38R, because on nightly r26 Wi-Fi was connecting and Disconnecting like anything (every 2nd second), so I don't recommend using Franco Kernel nightly r26 built.
    You current rom will not be erased by the installation.

    Adding ROMs

    1. Android

    Go to recovery, select Advanced -> MultiROM -> Add ROM. Select the ROM's zip file and confirm. As for the space, clean installation of stock 4.2 after first boot (with dalvik cache generated and connected to google account) takes 676mb of space.

    2. Ubuntu Touch
    Use the MultiROM Manager app to install Ubuntu Touch.
    We still don't have Ubuntu Touch

    Ubuntu Touch is in development - MultiROM will have to be updated to keep up with future changes in Ubuntu, so there's a good chance this method stops working after a while and I'll have to fix it.

    3. Firefox OS

    Firefox OS is just another Android ROM from MultiROM's point of view, so add it as if it were Android
    Using USB drive

    During installation, recovery lets you select install location. Plug in the USB drive, wait a while and press "refresh" so that it shows partitions on the USB drive. You just select the location (extX, NTFS and FAT32 partitions are supported) and proceed with the installation.
    If you wanna use other than default FAT32 partition, just format it in PC. If you don't know how/don't know where to find out how, you probably should not try installing MultiROM.
    If you are installing to NTFS or FAT32 partition, recovery asks you to set image size for all the partitions - this cannot be easilly changed afterward, so choose carefully. FAT32 is limited to maximum of 4095MB per image - it is limitation of the filesystem, I can do nothing about that.
    Installation to USB drives takes a bit longer, because the flash drive is (usually) slower and it needs to create the images, so installation of Ubuntu to 4Gb image on my pretty fast USB drive takes about 20 minutes.
    Enumerating USB drive can take a while in MultiROM menu, so when you press the "USB" button in MultiROM, wait a while (max. 30-45s) until it searches the USB drive. It does it by itself, no need to press something, just wait.

    Updating/changing ROMs

    1. Primary ROM (Internal)

    • Flash ROM's ZIP file as usual, do factory reset if needed (it won't erase secondary ROMs)
    • Go to Advanced -> MultiROM in recovery and do Inject curr. boot sector.
    2. Secondary Android ROMs

    If you want to change the ROM, delete it and add new one. To update ROM, follow these steps:
    • Go to Advanced -> MultiROM -> List ROMs and select the ROM you want to update.
    • Select "Flash ZIP" and flash ROM's ZIP file.
     
    Last edited: Oct 17, 2014

    #3
    varana, minecabla, Eterno and 10 others like this.
  4. srsfknbzns
    Ice Cream Sandwich Oct 16, 2014


    #4
    Sanjeev31aug likes this.
  5. ConnorShortt
    Jelly Bean Oct 16, 2014


    #5
    teqnix and Sanjeev31aug like this.
  6. vassy.uk
    Jelly Bean Oct 16, 2014

    vassy.uk , Oct 16, 2014 :
    I love Multi ROM. Primary - Mahdi ROM. Secondary - Stock CM11s and Tertiary - PA
     

    #6
    Sanjeev31aug likes this.
  7. PandaJuggernut
    Froyo Oct 17, 2014

    PandaJuggernut , Oct 17, 2014 :
    Thanks this is awesome, gonna try this with a stock Lollipop. ... If i can get a hold of it of course
     

    #7
  8. manchar
    Froyo Oct 17, 2014


    #8
  9. Sanjeev31aug
    Jelly Bean Oct 17, 2014


    #9
  10. Nilesh Sajnani
    KitKat Oct 17, 2014


    #10
    Sanjeev31aug likes this.
  11. manchar
    Froyo Oct 17, 2014

    manchar , Oct 17, 2014 :
    is there any future possibility for ubuntu on oneplus cause i like ubuntu
     

    #11
  12. Xero
    Jelly Bean Oct 17, 2014


    #12
    Sanjeev31aug likes this.
  13. nitesh.kawale
    Ice Cream Sandwich Oct 17, 2014


    #13
  14. 7418277780
    Gingerbread Oct 17, 2014


    #14
  15. alexx daviss89
    Gingerbread Oct 17, 2014

  16. prakashsr91
    Ice Cream Sandwich Oct 17, 2014


    #16
    Sanjeev31aug and magesha like this.
  17. wonderland
    Eclair Oct 17, 2014


    #17
  18. magesha
    Jelly Bean Oct 17, 2014


    #18
    prakashsr91 and Sanjeev31aug like this.
  19. Johan Seuntjens
    Cupcake Oct 17, 2014

    Johan Seuntjens , Oct 17, 2014 :
    Some Chinese sites are offering the OpO with another rom.
    As far as I can read this article it must be possible to install the Cyanogen rom with no hustle.
    Why should I install another rom from, as an example, XDA developers ?
    Cyanogen has a big credit for building magnificent rom's !
    But nevertheless great article tho !
     

    #19
    Sanjeev31aug likes this.
  20. teqnix
    Lollipop Oct 17, 2014


    #20