MultiRom V32 Resurrected (VS985) [Updated: 07/12/2015]

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Eliminater74

Eliminater74

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Jul 12, 2015 at 10:09 PM

## Introduction ##​

MultiROM is one-of-a-kind multi-boot mod for Nexus 6. 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 ##

1. Via MultiROM Manager app
This is the easiest way to install everything MultiROM needs. Install the app and select MultiROM and recovery on the Install/Update card. If the Status card says Kernel: doesn't have kexec-hardboot patch! in red letters, you have to install also patched kernel - either select one on the Install/Update card or get some 3rd-party kernel here on XDA. You are chosing kernel for your primary ROM, not any of your (future) secondary ROMs, so select the version accordingly.
Press "Install" on the Install/Update card to start the installation.
2.Manual 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.

MultiROM has 4 parts, but you really only need to install 3 parts:

  1. MultiROM Installer:
  2. TWRP Modified Recovery:
  3. Patched Kernel: Primary roms Must have a Kexec Hardboot Patched Kernel
  4. MultiRom UnInstaller:

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 5.0 after first boot (with dalvik cache generated and connected to google account) takes about 1 GiB of space.

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.

Special Thanks to @Tasssadar..​

XDA:DevDB Information
MultiRom V32 Resurrected (VS985), ROM for the Verizon LG G3

Contributors
Eliminater74, thewalkingdude, Tasssadar
Source Code: https://github.com/Tasssadar/multirom

ROM OS Version: 5.1.x Lollipop
ROM Kernel: Linux 3.4.x
ROM Firmware Required: 4.4.x

Version Information
Status: Beta

Created 2015-07-12
Last Updated 2015-07-12
 
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Eliminater74

Eliminater74

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Jul 12, 2015 at 10:10 PM

  1. MultiRom V32 Installer: multirom-20150712-v32-UNOFFICIAL-vs985.zip
  2. MultiRom Modified TWRP Recovery: TWRP_MultiRom_2.8.7.x_vs985_20150712-signed.zip
  3. MultiRom Kexec Hardboot Kernel By @777jon: AOSP-777-Kernel_vs985-R10.zip
  4. MultiRom Uninstaller: multirom_uninstaller.zip

Warning: Kernel is for LP 5.1 Only with 32gb variants at question. Sorry 16gigers, I havent done one for you yet.. but you can try this one.. It just may work.

Note: You can compile your own Kexec Hardboot Kernel as well. @fechanaitor and @777jon both have the Correct MultiRom patch that works with this version.

SideNote: Little UnKnownFact. This MultiRom is set up to allow installing Stock OEM roms as secondery as well..
And @777jon's 777Kernel does work on secondary as well with this version..
 
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imucarmen

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May 28, 2012
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Jul 12, 2015 at 11:21 PM
Thanks for this. Can't wait for the files to be uploaded. will be trying it out right away.

are 2 roms the limit or can you install more than 2?
 
Edde3d

Edde3d

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Jul 13, 2015 at 3:19 AM
Hmmm interesting. Have to look into this. Sounds like it could be a bit more complex than dual boot patcher is. But I like the way this is set up.

Kickin it on my VS985
 
Eliminater74

Eliminater74

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Jul 14, 2015 at 12:04 AM
gweeto85 said:
I seem to be running into a issue while trying to install multirom, I have a vs985 running skydragon v4.0 5.0.1 rooted with twrp installed. I tried to flash multirom twice and failed both times resulting in a soft brick. The first time I flashed the 3 files, the kernel first.. rebooted the phone everything was fine. went back into recovery flashed the modified twrp, rebooted into recovery to flash the multirom zip. Everything was successful according to twrp, but when I reboot my phone I get a black screen after the life is good screen.. nothing boots just hangs. The second time, after reflashing my phone back to sky dragon.. tried again but this time I tried the skydragon kernel instead with the same results.

I used this for reference
https://www.youtube.com/watch?v=jKTJ9WpMOwU

can someone help me out, I'd like to get this working on my phone if possible.
Click to expand...
On the D855 thread, they are reporting that you must, Flash TWRP first then reboot into new twrp.. then flash the multirom, then flash the kernel.. then after all that you should be ok.,
Now skydragon has giving some people in the past problems even on my device.. but I got skydragon as secondary and runs with no problems......

Maybe some one else here can help you beter.. your devices are dif cause of the locked bootloaders.. we T-Mobile peeps dont have Locked Bootloaders..
So it makes it kinda hard for me to test...
 
X

xocomaox

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Aug 18, 2008
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Jul 14, 2015 at 4:23 PM
Edde3d said:
No matter how I try to install this it soft bricks my phone. Tried a few different ways with the same results at boot up.

Kickin it on my VS985
Click to expand...
When you say soft brick, do you mean that you can no longer boot into TWRP and have to flash back to stock image via KDZ/TOT?

I want to try this out but I have a stock image as primary, and I want to go AOSP/CM secondary.
 
Eliminater74

Eliminater74

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Jul 14, 2015 at 6:44 PM
Edde3d said:
No matter how I try to install this it soft bricks my phone. Tried a few different ways with the same results at boot up.

Kickin it on my VS985
Click to expand...
Im sorry man.. I just dunno what to say on that.. there seems to be a special way that you locked bootloaders gota do it.. and I have no clue.. they been talking about it on the D855 area..
Some got it working with no problems.. and some are having problems like you.. So you would have to read up on there and see what they are doing diff.

If nobody got it working. then I would say its a Port issue.. but many have got it working.. only a few havent.. im thinking its your setup... your primary rom or something.. dunno..
I mean no disrespect by what I say.. im just trying to help out. That Locked bootloaders cra* is really a pain.. Im glad I dont have to deal with all that.

PS: could you send me a log? that would be helpfull.
\
 
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