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[ROM][AOSP][8.1 Oreo] Unlegacy Android (Unofficial)

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TheDoctor46

Senior Member
Jan 28, 2021
539
374
Mumbai, India.
WTF i5-3210m!? I really feel sad for you waiting basically forever in front of a 8 year laptop.
My specs are i3 dual 3.4Ghz, 8GB ram, and a 1TB, the bitter truth is, it is a HDD. Only one HDD so I can't dual boot, and VirtualBox clearly won't be terribly fast as I am running windows.

Clearly my pc am not much faster than your laptop. Anyone have a faster PC? How about you, @TheDoctor46 ?
Mine is an AMD Ryzen 3 3200U 4gb ram 1 tb storage. It is for educational use so I don't even think it would be any help. Running windows 10 currently but it is compatible with windows 11.Waiting for October 5.
SORRY FOR NOT BEING ANY HELP :(
 
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TheDoctor46

Senior Member
Jan 28, 2021
539
374
Mumbai, India.
Also there are some online emulators of Linux that have supposedly 1GB/s(maximum bandwidth) internet and 64-bit system. However, the cons are that you need to babysit in front of it and move the cursor every 9 minutes(as it will close the emulator if you do nothing in 10 mins)
It will be extremely painful if you need to build for 10 hours or so. But the internet on the emulator should be fast(if really 1 gb per second then sync sources should only take a few minutes)
Also after building you need to upload the rom to Google drive or Android file host or it will be lost.
Well, I tried playing with them once and mostly all are based on same framework. Even the windows 10 emulator is based on same framework and it's nowhere close to windows 10.
 

LR7875

Senior Member
Jun 25, 2021
857
334
Samsung Galaxy Tab 2
Xiaomi Mi Pad
Yeah kinda guessed that no one will sit there and move the cursor for a few hours. I won't do that either.
And as a side note are everyone here students?
Also I am kind of giggling over the fact my whoppingly old 7 year is the strongest PC of you all (most amount of ram, similar processor), but as it is already not really fast on daily use, and I have to use a not-so-stable USB tethering from my phone to access the internet, it will take a few years to build the ROM. And as I am using windows, virtualbox will definitely bottleneck the speed.
Then who's going to maintain this ROM? Or you guys count on me:unsure: which won't be the most reliable:p
 
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Mighty

Senior Member
Mar 17, 2018
490
201
Samsung Galaxy Tab 2
Yeah kinda guessed that no one will sit there and move the cursor for a few hours. I won't do that either.
And as a side note are everyone here students?
Also I am kind of giggling over the fact my whoppingly old 7 year is the strongest PC of you all (most amount of ram, similar processor), but as it is already not really fast on daily use, and I have to use a not-so-stable USB tethering from my phone to access the internet, it will take a few years to build the ROM.
Then who's going to maintain this ROM? Or you guys count on me:unsure: which won't be the most reliable:p
@Ziyan can we use the jenkins? :p
 

gu_1_

Member
Sep 8, 2021
7
6
I need the manifest, i think i know how to do the rest but the manifest is a problem for me.

I've already downloaded the android source, but now i need the kernel.
 
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TheDoctor46

Senior Member
Jan 28, 2021
539
374
Mumbai, India.
I need the manifest, i think i know how to do the rest but the manifest is a problem for me.

I've already downloaded the android source, but now i need the kernel.
Is this what you need. I am a total noob so I don't know. Just copy pasted the link from #1 post
 

TheDoctor46

Senior Member
Jan 28, 2021
539
374
Mumbai, India.
Linux can also be emulated on an efficient android phone using limbo pc emulator but that again will need a good amount of ram. Is anyone here having a ROG phone 5 with 16 gb ram ! :ROFLMAO: :eek: so that even if limbo takes max to max 1 gb, we will have the rest !!
 
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Mighty

Senior Member
Mar 17, 2018
490
201
Samsung Galaxy Tab 2

Top Liked Posts

  • 2
    @Mighty is having problems with building the rom due to a weak laptop
    If they are interested, they can use my computer to build roms.

    Send me a DM or something so we can get going. I have no experience building android roms, but I have enough experience building web apps to automate it, with your help, so you can just upload the sources and get a build done by my hardware. Hopefully the delay of uploading the entire source code and downloading the artifacts is less than the time you save.
    2
    If they are interested, they can use my computer to build roms.

    Send me a DM or something so we can get going. I have no experience building android roms, but I have enough experience building web apps to automate it, with your help, so you can just upload the sources and get a build done by my hardware. Hopefully the delay of uploading the entire source code and downloading the artifacts is less than the time you save.
    Im grateful for your offer :D but already have found a way to build roms now
    2
    New Update for espresso3g!
    Updated lowmemorykiller
    We are using 64 bit binder, instead of 32 bit binder (which was for android 4.4)
    Fixed wifi, no more patches needed!
    Removed zram as it was causing freezes
    You can install apks more than 100mb now
    1
    Also some updates coz I was gone for a long time, been testing new build and it works with gapps as well (while prev ones used to crash) but im facing a lot of freezes due to running out of ram :(
    Even happens without gapps sadly
  • 6
    And yes, we would be working on the stability issues and camera by using the 3.0.101 kernel on the Tab 2 with oreo. The only issue is that @Mighty have a weak laptop that almost cannot build roms. We have to ask for help from developers like @html6405, which as they have a lot of devices to maintain, won't be the fastest update speed.
    Cameras are very unlikely, if @html6405 manages to get 3.0 kernel working with oreo there is some chance, but with 3.4 kernel its a no.
    BTW, I'm already having a booting 3.0.101 Kernel with working OTG, dock keyboard and many more functions.
    It's still unstable, because there are many other commits and backports to do.

    I've fixed the camera hal partly, so that it's buildable, but the camera doesn't work so far (I think it's a hal problem),
    also, I've found a partly RIL fix, but at the moment only the BASEBAND is known.

    Because of other ROM updates, I think will proceed in november with this...
    4
    NEED SERIOUS ATTENTION
    So, Iong story short, I successfully installed this rom on an espressowifi.
    I putted the espresso3G system.new.dat.br, system.transfer.list, and system.patch.dat into the espressoWIFI zip.
    (disclaimer this is all @Mighty 's work)
    The zip is uploaded below,please put it into the OP thanks @Mighty
    Oh wow that's quite a feat! Congrats!
    3
    Hello, I'm 16 too (LOL), I have:
    i5-7200u
    8gb ddr4
    ssd ~140gb free - BTRFS
    Fedora Workstation 34 as host
    120mb internet

    I can try to build it if you want, but i need the instructions.
    kernel - https://github.com/MightyM17/android_kernel_ti_omap4
    espresso device tree - https://github.com/MightyM17/android_device_samsung_espresso/tree/wip
    espresso3g device tree - https://github.com/MightyM17/android_device_samsung_espresso3g
    ti hardware - https://github.com/airend/android_hardware_ti_omap4/
    samsung vendor - https://github.com/Unlegacy-Android/proprietary_vendor_samsung/tree/aosp-8.1
    ti vendor - https://github.com/Unlegacy-Android/proprietary_vendor_ti
    3
    NEED SERIOUS ATTENTION
    So, Iong story short, I successfully installed this rom on an espressowifi.
    I putted the espresso3G system.new.dat.br, system.transfer.list, and system.patch.dat into the espressoWIFI zip.
    (disclaimer this is all @Mighty 's work)
    The zip is uploaded below,please put it into the OP thanks @Mighty
    3
    NEED SERIOUS ATTENTION
    So, Iong story short, I successfully installed this rom on an espressowifi.
    I putted the espresso3G system.new.dat.br, system.transfer.list, and system.patch.dat into the espressoWIFI zip.
    (disclaimer this is all @Mighty 's work)
    The zip is uploaded below,please put it into the OP thanks @Mighty
    Oh wow that's quite a feat! Congrats!
    @LR7875 and @Mighty, you two are genius !! 💯

    If I see any more wonder (s) like this again I'll call each one of you a GOAT

    (NOTE : by GOAT, I didn,t mean🐐. So please do not pounce on me and call me a DONKEY !)
  • 12
    Warranties:
    THIS GUIDE COMES WITH NO WARRANTY. I AM NOT RESPONSIBLE OF BREAKING YOUR PRECIOUS TABLET.
    PLEASE BACKUP YOUR DATA BEFORE CONTINUING, AS THIS GUIDE WILL WIPE YOUR DATA.
    Also, this guide assumes you have the following requirements:
    • Bootloader unlocked
    • TWRP installed

    Installation:
    Before proceeding, pick the tablet and go to TWRP.
    Do the normal wipes for clean flash.
    Copy the zip to sdcard or on the tab wherever you like.
    Flash the zip from TWRP.
    Reboot and done, enjoy :)

    Problems:
    Wifi connects but shows no internet. (Need help in fixing this!) Fixed!
    No SELinux support yet!
    Cameras will NOT work, as we are using a newer 3.4 kernel for Oreo!
    You tell :D

    Download:
    espresso3g
    espressowifi See post #175! Thanks for @LR7875 for making it work on espressowifi!!

    Source Code:

    ROM OS Version: 8.1.0 Oreo
    Status: Alpha
    10
    Updated link in #1 where wifi is working now!
    8
    Great to see that development continues!
    Thanks a lot @Mighty and @html6405 !

    From time to time I am reading on XDA or taking a look at our dev chat Channels, even if I am not a big help anymore.

    I am spending my rare spare time working on a OpenSource Photobooth project, mainly to run on a raspberry pi.

    My daughter was born end of August and now new, different challenges are waiting for me!

    Best regards

    Andi
    7
    Yeah, I agree with you. @Mighty, you better change your name to Almighty because many devs tried to build this rom but failed. Only you were successful to get the rom even booting in tab 2. That's really a big step forward.💯🏆⚡🎉🎆
    Haha, thanks a lot! It's my pleasure to work on tab 2, and many thanks to Ziyan, Andi, html6405 for helping me out!
    6
    New Build!
    Added espressowifi download link
    Fixed videos not working
    Added zram
    Now builds as Oreo Go, if you feel some lag/freezes please report so as to keep the Go configs or not

    Also @KappaTheCapper internet has been working since the last build!