[MOD][ OCT 16 ][Sanders] MultiROM v33 || no-kexec workaround - Moto G5S Plus ROMs, Kernels, Recoveries, & Other D

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Introduction
MultiROM is one-of-a-kind multi-boot mod for Moto G5S Plus. It can boot any Android ROM, 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. ROMs are installed and managed via modified TWRP recovery. You can use standard ZIP files to install secondary Android ROMs.
Features:
* Multiboot any number of Android ROMs
* Restore nandroid backup as secondary ROM
* Boot from USB drive attached via OTG cable
You can also watch a video which shows it in action in general.​
Warning!
It _is_ dangerous. This whole thing is basically one giant hack - none of these systems are made with multibooting in mind. But it is possible that something goes wrong and you will have to flash factory images again. Make backups. Always.​
Installation
1. 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 2 parts you need to install:
Modified recovery (TWRP_multirom_sanders_YYYYMMDD-xx.img) - download the IMG file from second post and use fastboot or Normal TWRP recovery if you have or any other third party image installers from Google Playstore.
MultiROM (multirom-YYYYMMDD-v33e-UNOFFICIAL-sanders.zip) - download the ZIP file from second post and flash it in recovery.
2. Via MultiROM Manager app
We do not have Official Support, an unofficial APP can be downloaded from second post)
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.​
Using USB drive (not tested yet)
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.
In some cases, you might need to flash patched kernel - get coresponding patched kernel version from second post and flash it to the secondary ROM sama way you flashed ROM's ZIP file.
Explanation of recovery menus
Main menu
- Add ROM - add ROM to boot
- List ROMs - list installed ROMs and manage them
- Inject boot.img file - When you download for example kernel, which is distrubuted as whole boot.img (eg. franco kernel), you have to use this option on it, otherwise you would lose MultiROM.
- Inject curr. boot sector - Use this option if MultiROM does not show up on boot, for example after kernel installation.
- Settings - well, settings.
Manage ROM
- Rename, delete - I believe these are obvious
- Flash ZIP (only Android ROMs) - flash ZIP to the ROM, for example gapps
- Add/replace boot.img - replaces boot.img used by this ROM, this is more like developer option.
- Re-patch init - this is available only for ubuntu. Use it when ubuntu cannot find root partition, ie. after apt-get upgrade which changed the init script.​
Source code
MultiROM - https://github.com/MR-op3/multirom (branch mr-7.1)
Modified TWRP - https://github.com/MR-op3/android_bootable_recovery (branch mr-7.1)
Device Tree - https://github.com/MR-op3/device_motorola_sanders (branch mr)​
Credits
nkk71 (For no-kexec workaround)
XDA:DevDB Information
[MOD][OCT 16][Sanders] MultiROM v33 || no-kexec workaround, Tool/Utility for the Moto G5S Plus
Contributors
premaca, syed sajid, GeneticEnginer
Version Information
Status: Beta
Current Beta Version: v33
Beta Release Date: 2017-10-16
Created 2017-10-17
Last Updated 2017-10-31

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Changelog and Downloads
If you have come across with WRONG-PIN on Primary after the installation of secondary, flash the following Lock Fix.
Lockfix.zip
20171114
multirom-20171114-v33e- UNOFFICIAL-sanders
TWRP-multirom_sanders_20171114-01.img
20171016
multirom-20171016-v33e-UNOFFICIAL-sanders.zip
TWRP_multirom_sanders_20171016-02.img
- Initial Release
Flash this ZIP file multirom_uninstaller.zipto 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.
Multirom manager APP: Will be uploaded Soon.
FAQ and other notes
Device encryption
Since v32, MultiROM supports encryption on this device (it has to be added for each device separately). It works only with Android-based secondary ROMs and the secondary ROMs don't know the device is encrypted, so they would allow you to encrypt the device again - do not do that. If you're using password, pin or pattern for the encryption, MultiROM will ask you for the password on boot. If you're booting the primary ROM, then Android will ask you for the password _again_ - unfortunately, there is no way for me to pass the "unencrypted" status to Android. If you're booting secondary ROM, MultiROM will ask you for the password again after the reboot - that's because I have to unencrypt the /data partition after the ROM's kernel is loaded.
I could omit the second password prompt when booting secondary ROM by temporarily saving the password somewhere, but that's obviously unsafe. So is using encryption with unlocked device though, so I might add this later.​I have not tested it yet, as i never used ENCRYPTION on my device, will try to see if there are issues and more users for this use case
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.​
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.​By default /external_sd is mounted and is used to store the ROMs.
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.​
Will Motorola Stock works as Primary or Secondary ROM?
Yes, Motorola Stock version works with Multirom as Primary ROM, It is not advised to install stock as Secondary, use only as Primary ROM. You can then install other Android ROMs as secondaries.​
How do I flash Gapps in Secondary ROMs?
After AddRom and is done, go back and Click on the installed Secondary ROM, you will see one of the option to 'Flash Zip', click and install Gapps. Then you can reboot into secondary ROMs, do gapps installation before rebooting otherwise as usual need to deal with SetupWizard FC, at least thats what I observe in my device.​
Enabling no-kexec workaround
Please read all things about no-kexec workaround from the author words only, (to avoid duplicity and get latest information), thanks to @nkk71
[url]http://forum.xda-developers.com/showpost.php?p=64248526&postcount=4[/URL]

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Reserved

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Congrats on the release
But you may have missed a few commits, especially if you're going to be dealing with Oreo and/or sdcardfs

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nkk71 said:
Congrats on the release
But you may have missed a few commits, especially if you're going to be dealing with Oreo and/or sdcardfs
Click to expand...
Click to collapse
Sure. Let's get them in. This is initial release, will pick the commits. Needed for our other devices too.

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premaca said:
Sure. Let's get them in. This is initial release, will pick the commits. Needed for our other devices too.
Click to expand...
Click to collapse
They're still only on my repo, not merged with multirom-dev yet
https://github.com/nkk71/multirom/commits/master
https://github.com/nkk71/android_bootable_recovery/commits/android-7.1-mrom
There's Android 8.0 file_context fixes, and especially that nasty sdcardfs fix (it's a long commit message, but should be thorough enough)
Also the auto detect legacy props isn't in there (didn't push it, as technically it's supposed to be part of 8.0twrp branch), so if someone get the "assert failed this is for device xxx but your device is '<blank>' " then that's the deprecated legacy property problem.
Really up to you if you want to use these commits (I/we are), but the sdcardfs issue can become really nasty, eg here (he just nuked all his secondaries :/ )

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nkk71 said:
They're still only on my repo, not merged with multirom-dev yet
https://github.com/nkk71/multirom/commits/master
https://github.com/nkk71/android_bootable_recovery/commits/android-7.1-mrom
There's Android 8.0 file_context fixes, and especially that nasty sdcardfs fix (it's a long commit message, but should be thorough enough)
Also the auto detect legacy props isn't in there (didn't push it, as technically it's supposed to be part of 8.0twrp branch), so if someone get the "assert failed this is for device xxx but your device is '<blank>' " then that's the deprecated legacy property problem.
Really up to you if you want to use these commits (I/we are), but the sdcardfs issue can become really nasty, eg here (he just nuked all his secondaries :/ )
Click to expand...
Click to collapse
i tried this it asked me for password to decrypt data it says wrong password even when i enter right one
i tried the same password for normal twrp it worked
its notworking out with this
---------- Post added at 12:33 PM ---------- Previous post was at 12:32 PM ----------
i tried this it asked me for password to decrypt data it says wrong password even when i enter right one
i tried the same password for normal twrp it worked
its notworking out with this

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Format data button?? I don't know for sure if this is the answer for multi Boot mod but to flash anything in TWRP I had to format data which will also decrypt the phone. As follows... Boot to TWRP, press wipe and then on the right side of the screen above the "slide to wipe" icon is a button that says format data... IT WILL WIPE ALL DATA ON THE INTERNAL STORAGE!! PICTURES, DOWNLOADS, ETC...

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winpooh said:
Format data button?? I don't know for sure if this is the answer for multi Boot mod but to flash anything in TWRP I had to format data which will also decrypt the phone. As follows... Boot to TWRP, press wipe and then on the right side of the screen above the "slide to wipe" icon is a button that says format data... IT WILL WIPE ALL DATA ON THE INTERNAL STORAGE!! PICTURES, DOWNLOADS, ETC...
Click to expand...
Click to collapse
Yes ,it can work after reset only, you have to do a backup first.

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Thnx for ur work mate.. i really needed it to test out oreo roms without losing the stock one & it's working grt..!!

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abhinav2hd said:
Thnx for ur work mate.. i really needed it to test out oreo roms without losing the stock one & it's working grt..!!
Click to expand...
Click to collapse
Be careful and do read the instructions also.

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syed sajid said:
Be careful and do read the instructions also.
Click to expand...
Click to collapse
I've used multirom before.. i know how it works ?

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abhinav2hd said:
I've used multirom before.. i know how it works ?
Click to expand...
Click to collapse
That's good, I'm not talking about how to use multirom?

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Update Multirom Recovery !!!
TWRP-multirom_sanders_20171114-01
https://androidfilehost.com/?fid=962021903579492365
multirom-20171114-v33e- UNOFFICIAL-sanders
[URL="https://androidfilehost.com/?fid=889964283620765983]https://androidfilehost.com/?fid=889964283620765983[/URL]

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Do I have to wipe data again after updating?

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gaurav.saroya said:
Do I have to wipe data again after updating?
Click to expand...
Click to collapse
Nope, just flash it as normal..

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syed sajid said:
Nope, just flash it as normal..
Click to expand...
Click to collapse
Okay thanks

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syed sajid said:
Update Multirom Recovery !!!
TWRP-multirom_sanders_20171114-01
https://androidfilehost.com/?fid=962021903579492365
multirom-20171114-v33e- UNOFFICIAL-sanders
https://androidfilehost.com/?fid=889964283620765983
Click to expand...
Click to collapse
Second link not working

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gaurav.saroya said:
Second link not working
Click to expand...
Click to collapse
Working ...afh too slow wait till open..

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syed sajid said:
Working ...afh too slow wait till open..
Click to expand...
Click to collapse
It's working now