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[FIXED][OFFICIAL][APP]Dualboot Patcher For Lenovo A6000/+

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Announcement from V@RuN_: Official DualBoot is here.

I am proud to present the official dual boot project for Lenovo A6000. This will allow any number of ROMs to be installed at the same time. It works by patching the secondary ROM's installation scripts and boot image to load the ROM files from an alternate location (/system/multiboot, /cache/multiboot, and /data/multiboot). Because of the way this is implemented, no changes to the primary ROM are necessary

What is DualBootPatcher?

DualBootPatcher is an open-source app that allows multiple ROMs to be installed on a single Android device. It does its best to work with existing code and does not require explicit support from ROMs. There are currently 200+ supported devices and their variations.

Information:

I have managed to get Lenovo A6000 to the DualBootPatchers Official list, I am not the creator of the Dualboot patcher, just the supporter.
It's awesome and useful for testing out roms or if you want, switching ROMS.

Disclaimer:

Code:
Your warranty is now void.
I am not responsible for bricked devices, dead SD cards, thermonuclear war, or you getting fired because the alarm app failed. Please do some research if you have any concerns about features included in this ROM before flashing it! YOU are choosing to make these modifications, and if you point the finger at me for messing up your device, I will laugh at you. Hard. A lot.
Requirements:
1. A Custom Recovery (TWRP)
2. A ROM
3. Dual Boot Patcher app from the download section below.
4. A rare thing you find now-a-days on XDA known by the codename: B.R.A.I.N

What does the app do ?:

It patches...
  • Custom kernels for dual boot support
  • ROMs to make them boot as secondary
  • Gapps
  • Any other mod you would like to install on your secondary ROM

What's supported ?

Quote:

Except Toaster and Alarm clocks pretty much everything is supported.

How to use the App?

- Download, install and open the app.
- Swipe to the right to open the menu. Click "ROMS". Now if this is the first time you use it, it will ask you if you want to set kernel. Do so!
-Grant Root Permission
-Go to settings and select install bootui
- After it has finished go to ROM Settings (primary ROM 3 dot menu) and select Update Ramdisk. It will update it and will ask you to reboot. Press Reboot Now, or Reboot later, and if you weren't asked to set kernel then select set kernel also.
- Now Download any ROM you like and open the app again and open the menu and open Patch Zip File from the menu. Ensure that your Device is set to "a6000-Lenovo-A6000" and under Partition configuration select secondary (will install 2nd ROM in /system) or data slot.
- Click continue and select where to save the patched file.
- You should see the file is being put in "Queue". Just click the confirm button to the upper right.
Note: If you want to go back, just swipe the ROM in queue to right and start over.
- The app will patch the zip. When done, go back to "ROMs".
- Click "Flash zip files" (the big pink button on the lower right). Click the pink plus button to add your previously patched zip file.
- Locate the file you have patched in step 7. Unless you have changed the name there, it should be something like ROM_name_partition_config_ID.zip.
- Click on that file and choose "Keep location". Now confirm the flash with the button on the upper right side.
Note: You can also install the patched zip files in recovery.
- It will now open the terminal and begin flashing the file. This requires some patience. After it has flashed the file you'll see success message in green.
- Now click back and you should see your newly installed ROM along with the Primary ROM.
Note: You can find more options by clicking on the three buttons on each ROM.
- Using Bootui:
- After installing (update) bootui, and flashing the secondary ROM then go to "ROMS" section again and open secondary ROM Settings) and select Update Ramdisk, Now when you will reboot a TWRP like Screen will appear, in that select whichever ROM u wanna boot.
Note-
Clean Flashing any simple ROM from TWRP will wipe both the ROMs, so if you clean flash and want to dual boot, follow the instructions again.

Partitions Configurations:
The patcher offers several locations for installing ROMs:
  • Primary: This is normally used for installing a zip to the primary ROM. It is not required, but is strongly recommended because it has code to prevent the zip from inadvertently affecting other ROMs.
  • Dual: Dual/Secondary is the first multiboot installation location. It installs to the system partition. This is a good spot for installing a second ROM because it doesn't take any space away from the internal storage.
  • Multi-slots: There are 3 multislots: multi-slot-1, multi-slot-2, multi-slot-3. These install to the cache partition. This is specifically for devices, like the Galaxy S4, that have a massive cache partition.
  • Data-slots: There can be an unlimited number of data slots. These install to the data partition and eat up space on the internal storage. This is useful for devices where the system partition is nearly full and the cache partition is tiny. These slots are named "data-slot-[id]", where "id" is something you provide in the app.
  • Extsd-slots: There can be an unlimited number of extsd slots. These install to the external SD card, which is useful as it keeps the ROMs off of the internal storage. Note that the ROM's data files are still stored on the data partition.


How to boot to another ROM ?

This is simple ... . So all you have to do is:
1) Go to ROMs section of the App.
2) Click on the ROM you want to boot to. You should see "Switching ROM" message. After few seconds, you should see a report message saying that "ROM successfully switched".
3) Now just do a normal reboot of your device. See the magic! It should boot to the ROM you have switched on step 2.
Note: You can find more options by selecting the three buttons on each ROMs (like creating reboot widgets for directly rebooting to specific rom).
You also need to install the App to all of the ROMs you install. Otherwise, you want be able to boot to other ROMs!

Instead you can use the bootUI to switch ROMs as stated above


Apps and Data sharing:
Quote:

DualBootPatcher very recently got support for sharing apps and their data across ROMs. Maybe sharing is somewhat of a misleading term. The feature actually makes Android load the shared apps and data from a centralized location, /data/multiboot/_appsharing. So you're not sharing apps from one ROM to another per se. The ROMs are just loading the apps from one shared location. Let me make this clearer with an analogy.

Think of the people in a company office as ROMs. You want to share with your coworkers some documents (apps). Instead of telling them to come over to your desk to see those documents (sharing apps from one ROM to another), everyone goes to the conference room to look at the documents together (loading apps from a shared location). That's how app and data sharing is implemented.

To use app sharing, follow these steps in every ROM that you want to use app sharing:
  • Install the app you want to share
  • Open DualBootPatcher and go to "App Sharing" in the navigation drawer
  • Enable individual app sharing
  • Tap "Manage shared applications" and enable APK/data sharing for the app
  • Reboot
Quote:

When you uninstall an app that's shared, it simply become unshared for the current ROM. That way, other ROMs are not affected. To continue the analogy above, if you quit your job, you won't shred the documents that everybody else was looking at.

If you unshare an app's data, it will go back to using the data it had before it was shared. In other words, you leave the conference room and go back to work on your own documents at your desk.



FAQs

How do I uninstall the secondary ROM
The easiest way is to do it from the app while booted in another ROM. Just go to "Roms" in the navigation drawer, tap the 3 dots options menu for the ROM you want to wipe, and tap "Wipe ROM".

OK, Now i Want to change my Primary ROM but want to keep the Secondary ROM
Patch the zip for primary and flash it. The "primary" installation target is designed so that other ROMs won't be affected when you want to flash something for the primary ROM

I wanna change the secondary ROM
Wipe it using the 3 dot menu and Patch and flash the zip exactly like how you did it the first time.

Flash a mod or custom kernel for the primary ROM?
Patch it for primary before flashing. If the zip does not wipe /cache, it is also safe to flash it directly.

Flash a mod or custom kernel for a non-primary ROM?
Just patch and flash it

Ok but the Update Ramdisk failed
Dont worry simply follow the further steps, i have got it thoroughly tested on the telegram group and by myself

But I have the 8GB Variant so wont flashing secondary ROM eat my Storage space?
The Answer is NO, you may not be able to flash Gapps in some cases for secondary ROM, but as long as you flash the secondary ROM in /system, your storage space wont be used

Downloads:
Cheers ! we are officially supported

Note: You can download any version since "9.3.0.r97.g737d9dd5"

Sources:
DualBootPatcher:https://github.com/chenxiaolong/DualBootPatcher
Lenovo A6000 Support:
https://github.com/chenxiaolong/Dual...tcher/pull/922

Known Issues:
Comment here if you face any.

Credits:
@chenxiaolong for the awesome DualBootPatcher.
Other people behind the DualBootPatcher
And Me :V




XDA:DevDB Information
[OFFICIAL][APP]Dualboot Patcher, Device Specific App for the Lenovo A6000/Plus

Contributors
V@RuN_, chenxiaolong
Source Code: https://github.com/varunhardgamer/DualBootPatcher


Version Information
Status: Stable

Created 2017-11-04
Last Updated 2017-11-04
The Following 13 Users Say Thank You to V@RuN_ For This Useful Post: [ View ] Gift V@RuN_ Ad-Free
 
 
4th November 2017, 10:38 AM |#2  
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This is more than awesome dude.
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4th November 2017, 10:41 AM |#3  
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Reserved
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4th November 2017, 10:42 AM |#4  
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Fine...
Something new for A6k/+
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4th November 2017, 10:44 AM |#5  
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Quote:
Originally Posted by V@RuN_

Reserved

Oops!!! Seems I posted before OP. Sorry for that.
4th November 2017, 10:48 AM |#6  
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Quote:
Originally Posted by Jitheshwar

Oops!!! Seems I posted before OP. Sorry for that.

No problem dude, you reserved for me
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4th November 2017, 01:01 PM |#7  
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is anyone having problem with the ramdisk update as every time i update it gives error and create a log and i also attaching the log for that and i am on aosp extended 4.4
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File Type: log ramdisk-update.log - [Click for QR Code] (21.3 KB, 28 views)
4th November 2017, 01:42 PM |#8  
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Quote:
Originally Posted by garvit girotra

is anyone having problem with the ramdisk update as every time i update it gives error and create a log and i also attaching the log for that and i am on aosp extended 4.4

I know that and we are checking it again, looks like something got derped
4th November 2017, 01:48 PM |#9  
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4th November 2017, 02:15 PM |#10  
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EDIT-> The issues are fixed grab the latest snapshot
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4th November 2017, 09:37 PM |#11  
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The fix has been added, download fhe latest snapshot and enjoy
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