[ROM][9][OFFICIAL] LineageOS 16.0 for P2

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mikeioannina

Recognized Developer
Mar 22, 2011
1,969
27,117
Ioannina
Lenovo P2
Xiaomi Mi Mix 2
Code:
[COLOR="Purple"]#include <std_disclaimer.h>[/COLOR]
[COLOR="Navy"]/*
 * 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.
 */[/COLOR]

Installation:
If you are on stock OS, you need a custom recovery first. You can get the recommended TWRP recovery in the official installation instructions link below.
If you are coming from stock or other ROMs, you need to make a factory reset.
If you are coming from LineageOS 15.1 with f2fs userdata, you need to format the userdata partition! Read the second post for more information.
As always, make sure to backup before installing this ROM.

More detailed instructions at:
Install LineageOS on kuntao

Download link:
LineageOS Downloads

Recommended Google Apps package:
Open GApps (choose the variant you want. Recommended nano package)

Required TWRP recovery
twrp-3.2.3-20190209-kuntao.img

Official root addon
LineageOS Extras

Changelog:
Changes for kuntao

Bug reports:
How to submit a bug report
LineageOS GitLab

Donate to support development:
Donate via PayPal to mikeioannina
Donate via PayPal to LineageOS

XDA:DevDB Information
Official LineageOS 16.0 for P2, ROM for the Lenovo P2

Contributors
mikeioannina, highwaystar_ru
Source Code: https://github.com/LineageOS

ROM OS Version: 9.x Pie
ROM Kernel: Linux 3.x
ROM Firmware Required: Any version of stock 6.0. Recommended: P2a42_S251_171107_ROW
Based On: LineageOS

Version Information
Status: Nightly

Created 2019-04-13
Last Updated 2019-06-17
 

mikeioannina

Recognized Developer
Mar 22, 2011
1,969
27,117
Ioannina
Lenovo P2
Xiaomi Mi Mix 2
Upgrade instructions from LineageOS 15.1

Lenovo used a very old version of f2fs which is incompatible with latest f2fs version of 3.18 kernel. In order to keep the device updated with the latest features, it was necessary to upgrade f2fs with the downside of existing users need to format the userdata partition. If you want to keep your userdata, follow these steps. Keep in mind any apps using the keystore will be broken and you will need to clear their app data and set them up from scratch. If you used ext4 for userdata, you can simply upgrade without any breakage.

If you want to keep and migrate your 15.1 data and internal storage contents (only on incoming official builds!):

1. backup userdata in your current TWRP and take an internal storage backup on your PC.
2. reboot to bootloader
3. fastboot flash recovery twrp-3.2.3-20190209-kuntao.img
4. reboot to recovery by holding vol up + vol down + home + power buttons
5. main menu -> wipe -> format data
6. main menu -> reboot -> reboot recovery
7. flash lineage zip (and gapps/whatever else you want)
8. restore userdata backup and internal storage backup
9. delete /data/system/locksettings.db, you will have to set your lockscreen protection again when it boots

If you want a completely clean install just skip steps 1, 8 and 9.
I tested this process and it worked coming from lineage-15.1 or stock ROM.
 
Last edited:

philje123

Senior Member
Dec 6, 2006
622
87
Paderborn
So if I already have ext4 data partition I can simply install the new 16.0 update without having to migrate the data etc?

Do I need the new recovery too?
 

Erazor84

Senior Member
Apr 4, 2011
182
62
Vienna
Normally the build of the images starts on sunday 8utc am, so 10am my time. we'll see ^^ thx mike!

@philje123 i will test it out, as soon as the rom is available. i am too on ext4 already, i am using the new twrp since february, even with the 15.1 build. i will try to simply upgrade from 15.1 to 16, so i don't have to reinstall all apps. i will write, if it was working for me.
 
Last edited:

Lyceus

Senior Member
Jun 15, 2017
97
26
So if I already have ext4 data partition I can simply install the new 16.0 update without having to migrate the data etc?

Do I need the new recovery too?
Yes, you need new recovery, but flashing new recovery do NOT wipe your data. It contain a newest format of f2fs format. On TWRP page you have a guide, how to flash it step by step on your phone without meet do plug your phone to PC.
 
Last edited:

htunze

Member
Feb 17, 2015
24
4
I remember last year on presentation 15.1 it took a couple of days before we could download after announcement.
Mikes work is awesome. But his timing :eek:

But anyway, I'm looking forward for this rom and I thank all the developers :good:
 

Erazor84

Senior Member
Apr 4, 2011
182
62
Vienna
i mean it depends, when the build for the 16 roms is starting everyday, but according to this site https://www.lineageoslog.com/build/scheduler we will get nightly builds, instead of weekly ones.

so that means, daily snapshots, like we had with 15.1 from july till november, before we only got one update a week. but no matter when, i am just happy that 16 is finally here ;D
no matter if we have to wait another day or not for the first build. but still - it's just amazing how much love the p2 gets. it is still one of the best, if not THE best device i've ever had. perfect performance for daily usage, even with slight gaming and i only need to charge my device once or twice a week. that's incredible! my device is now over 2 years old and my battery still lasts 4~6 days with one charge <3 best phone ever created hahahaha - and thx to people like mike, it is up to date too =) i hate lenovo as brand, when it comes to software updates, but the hardware is awesome, for that price tag...
 
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  • 65
    Code:
    [COLOR="Purple"]#include <std_disclaimer.h>[/COLOR]
    [COLOR="Navy"]/*
     * 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.
     */[/COLOR]

    Installation:
    If you are on stock OS, you need a custom recovery first. You can get the recommended TWRP recovery in the official installation instructions link below.
    If you are coming from stock or other ROMs, you need to make a factory reset.
    If you are coming from LineageOS 15.1 with f2fs userdata, you need to format the userdata partition! Read the second post for more information.
    As always, make sure to backup before installing this ROM.

    More detailed instructions at:
    Install LineageOS on kuntao

    Download link:
    LineageOS Downloads

    Recommended Google Apps package:
    Open GApps (choose the variant you want. Recommended nano package)

    Required TWRP recovery
    twrp-3.2.3-20190209-kuntao.img

    Official root addon
    LineageOS Extras

    Changelog:
    Changes for kuntao

    Bug reports:
    How to submit a bug report
    LineageOS GitLab

    Donate to support development:
    Donate via PayPal to mikeioannina
    Donate via PayPal to LineageOS

    XDA:DevDB Information
    Official LineageOS 16.0 for P2, ROM for the Lenovo P2

    Contributors
    mikeioannina, highwaystar_ru
    Source Code: https://github.com/LineageOS

    ROM OS Version: 9.x Pie
    ROM Kernel: Linux 3.x
    ROM Firmware Required: Any version of stock 6.0. Recommended: P2a42_S251_171107_ROW
    Based On: LineageOS

    Version Information
    Status: Nightly

    Created 2019-04-13
    Last Updated 2019-06-17
    40
    Hi everyone, it took a bit long but I have started working on lineage 17.1. Things look good so far.
    37
    I fixed a bunch of issues and ship blockers, I am not aware of any big issue so I will be enabling 17.1 nightlies soon so we can get wider testing.
    36
    Upgrade instructions from LineageOS 15.1

    Lenovo used a very old version of f2fs which is incompatible with latest f2fs version of 3.18 kernel. In order to keep the device updated with the latest features, it was necessary to upgrade f2fs with the downside of existing users need to format the userdata partition. If you want to keep your userdata, follow these steps. Keep in mind any apps using the keystore will be broken and you will need to clear their app data and set them up from scratch. If you used ext4 for userdata, you can simply upgrade without any breakage.

    If you want to keep and migrate your 15.1 data and internal storage contents (only on incoming official builds!):

    1. backup userdata in your current TWRP and take an internal storage backup on your PC.
    2. reboot to bootloader
    3. fastboot flash recovery twrp-3.2.3-20190209-kuntao.img
    4. reboot to recovery by holding vol up + vol down + home + power buttons
    5. main menu -> wipe -> format data
    6. main menu -> reboot -> reboot recovery
    7. flash lineage zip (and gapps/whatever else you want)
    8. restore userdata backup and internal storage backup
    9. delete /data/system/locksettings.db, you will have to set your lockscreen protection again when it boots

    If you want a completely clean install just skip steps 1, 8 and 9.
    I tested this process and it worked coming from lineage-15.1 or stock ROM.
    35
    @mikeioannina Thanks for your attempts for keeping this device's ROM development alive.

    While ago I saw in gerrit that you have commits about 4.x kernel. Did you succeeded to bring it up?
    And while you are currently working on LOS17, do you promote kuntao to 17?

    I never finished 4.9 kernel because it fails too early and I have no real way to debug it. I might look at it in the future when I have more time, but for now 3.18 still works fine.

    I will start porting 17.0 to kuntao soon and unless there is some major issue, it will be of course officially supported.