What is os porting?
ShaydeeDroid said:
What is os porting?
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In simple word, porting means to make a application or patch or os compatible with some other hardware or on some other platform.
Example: You have Android L preview image for Nexus 5 and you want to install that preview image on Nexus 4 then you need to decompile the Nexus 5 preview image, remove modules or drivers related to Nexus 5 hardware and replace them with that of Nexus 4 and many more step so that in the end you get an image that is fully functional with Nexus 4. Then this is known as OS porting. If you made an exact replica of some application that is working in iPhone for Android Device then that is known as application porting
Senior member, please correct me if I am wrong.
about porting rom
hi to all guy i have a question i have a Android tablet Ritmix RMD-870 with 4.2.2 android version Allwinner A31 quad core cpu if this mater and tell me please if i want install custom ROM in my tablet like MIUI or LewaOS i just need to porting this ROM it is ok or i need more work to make my tablet to work with these ROMs ????
I have made many attempts to get RemixOS for PC to work on my Intel Cherry Trail (Atom z8700) tablet, but still no luck with the latest build. (After manual installation), I can get the boot process to make it as far as the (pulsating) RemixOS logo, (at which point it looks like its loading) but that's it. No matter how long I wait, it never gets beyond that. If I try the automated installer, it never even gets that far.
I read a forum post about creating a FAT32 partition on my hard drive and manually copying all the files from the ISO to that partition. I then added the new boot entry to my system UEFI using EasyUEFI. That did help to get me further along in the boot process, but still can't get it to fully load.
I find this EXTREMELY strange because RemixOS is based on Android-x86, and I can get the 6.0 (r1) build of that to load (though) the Wifi doesn't work). I'm amazed that the core Android-x86 boots, but a derived OS build doesn't. Curious what they broke?
While experimenting with RemixOS and UEFI boot configuration and doing some internet research, I came across a very interesting graphical UEFI multi-boot menu called "rEFInd". It's a free/open source project, and you can find it on SourceForge. For anyone using RemixOS on a UEFI based system, I highly recommend it!
mediawiz said:
I have made many attempts to get RemixOS for PC to work on my Intel Cherry Trail (Atom z8700) tablet
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Cool, using a Cube iwork8 ultimate, now windows 10 but love my i6 Remix (still original Remix but works great). Look forward to using Remix on the iwork8 Z8700
I have a TX201LA tablet runs Android 4.2. Its a dual device 2 systems in 1. The tablet half is what i am focusing on. NOT the dock as I have windows 10 running fine on that half. The tablet is nearly useless as it is on android 4.2. I've been exploring a few options for getting an android update. My tablet runs an atom x86 cpu with 2GB of ram and is quad core cloevertrail CPU x2560. Plenty of power to run a newer android or even chromeOS, cloudready, or remixOS. I've explored those options but Bliss is the most straight forward as there are already x86 builds of Bliss. I think support should be relatively easy to add for my device.
There are a few caveats however I know ways to overcome them if I can get a rom to load.
1. I dont have a unlocked bootloader but I maybe able to unlock using zenfone 5 unlock method. Still no custom rom has ever been made for my tablet, only for similar devices like zenfone 5, galaxy tab 3 10.1, & dell venue 7.
2. Once I get it unlocked, I can load CWM or use flashfire. My tablet boots with Droidboot, which I can replace with CWN via again a zenfone 5 exploit that I have confirmed works with my tablet.
3. Would bliss load things like my LCD driver, touch screen etc? That is possibly the biggest issue. I have the kernel code here, UPDATED: http://support.asus.com.cn/Download....1LAF&p=3&s=587 OR here original: http://support.asus.com.cn/Download....01LA&p=3&s=587
3A. If the kernel code has all the HALS isnt it possible to build a Bliss rom that would be loaded via CWM/Flashfire and then boot-able?
3B. Could the Bliss team build a rom with the kernel code listed above, that I could then test? Or would the bliss team need to the device (I would think not, i hope). If a rom could be created I would GLADLY donate to BLISS.
Love to find out if this is possible. THANKS
Hi,
I am trying to port LineageOS to an unsupported device, an IBall Slide Cuddle A4.
Here's the guide I'm following : https://fat-tire.github.io/porting-intro.html
This is the part where I need help:
"Add the blobs to the vendor/ directory
Once you have a working recovery, it's now time to get CyanogenMod building and working.
The first thing to do is to get all the proprietary, binary blobs into the vendor/ folder, along with a .mk file that will include them in the final build.
This requires three steps:
Create extract-files.sh and setup-makefiles.sh scripts to pull those blob files from the device using adb and put them in the right /vendor/ directory. There are plenty of examples available for other devices.
Create an .mk Makefile to copy those files to the $OUT folder during the build process and put them in the right place. Again, use other devices as a guide for what this Makefile should look like. An example filename might be BoardConfigVendor.mk
Make sure that the Makefile you just created is included from your main BoardConfig.mk via a command such as -include vendor/[vendor]/[codename]/BoardConfigVendor.mk. Again, existing devices can illustrate how this is done.
Now revise the device/ directory
Since you have a working recovery, go back and start modifying the files in the device/ folder. As always, use other similar devices as a reference.
You now have a easy means to do backups and test your builds. So start tweaking the device folder itself, and see if you get it to boot... Once you do, from there its a matter of building and supporting the various parts and peripherals, one-by-one. "
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Q #1: Where all should I look on my device for the proprietary blobs, and what do they look like? Can I manually extract them out of my existing ROM and paste them into the proper folder of the new one?
Q #2: What do I modify in the device/ folder?
Q #3: What does it mean to "build and support the various parts and peripherals" Does this mean to add the necessary drivers? If so, can I get these drivers from the stock ROM?
The reason I have to ask this here is because my device has NO similar LineageOS-supported devices with the same chipset for me to refer to. My tablet has a MediaTek MT8392 chipset, and I couldn't find any supported devices with an MT8392 (or an MT6592, which is very similar). Also, there is NO code available from the manufacturer, at all. The only resource I have is a stock ROM.
Are there any other ways in which a device can be similar enough for me to use as reference?
It would be really nice if someone could provide links to articles explaining the above 3 things, or if someone has already gone through this process, share their experience.
Also, will my kernel (v3.4.67) be compatible with the latest LineageOS 16 / Android 9 or will I have to build an earlier version?
I am very new to Android development, but that doesn't mean that I can't learn!
That's a hard task for getting started. A mtk device with no twrp available. I recommend to start with low hanging fruits. Like buying an old phone with dropped lineageOS support and building an updated version.
I understand that it is quite difficult. So instead of doing a full port myself, I am now trying the method of taking an image made for a similar MTK device and transferring the device-specific files from my stock ROM, as shown in the following guide:
https://www.techubng.com/2017/09/how-to-port-lineage-os-14-nougat-rom-on-mtk.html
It says:
"From System/lib/hw: Delete all mt6572.so blobs and replace with these blobs: DOWNLOAD BLOBS
Now copy these files from stock to port:
System/lib/hwcomposer.mt65xx.so
System/lib/gralloc
System/lib/lib.audio.primary.so
Systemlib/lib.mali.soS
System/Etc
System/lib/libcameracustom.so
System/etc/firmware
System/lib/libfeatureio.so
boot/kernel
boot/unventd.rc (only if you are getting stuck at logo)
boot/Replace only camera lines under #Camera from stock boot.img init.rc to init.mt6572.rclib/libcamdrv.solib/libcamalgo.so"
But my stock ROM does not have any of the files he listed uner /system/lib! Can I ignore these files, or is there some other place where these files could be? (I checked /vendor)
Also, what about all the other files in /system/lib? Which ones are device-specific and does anything else need to be copied into the new ROM?
As for the TWRP, I have found tools like Easy Magic TWRP Installer ( https://forum.hovatek.com/thread-5162.html ) which will automatically do the porting given the boot.img and recovery.img from the stock ROM. Are these safe to use, as long as I provide the right info to the tool?
I want to use LineageOS on this tablet because the stock OS has some annoying bugs and is quite old (Android 4.4.2) considering how recent the tablet is and how much capability the tablet's hardware has. The manufacturer (IBall) has provided no updates at all.
Lineage OS on Samsung Galaxy J3 Achieve (SM-J337P)
Can I pay a developer to make a working ROM to put Lineage OS on the Samsung Galaxy J3 Achieve (SM-J337P) ?
If so, how do I find a developer who can do it?
hey, i have a sm-t280 that have a similar supported device. how i port to it?
i have a sm-t280 that i wan't to update the android. the only exit i found it's build linegeos or aosp for it, can anyone help me?
here is the source tree:
vendor tree: huttps://github.com/gtexswifi/android_vendor_samsung_gtexswifi
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device tree: huttps://github.com/gtexswifi/android_device_samsung_gtexswifi
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kernel tree: huttps://github.com/pfent/sm-t280-kernel
[i writed huttps because i don't have posted 10 posts already]
Porting similar device mt6750t
vinaypundith said:
I understand that it is quite difficult. So instead of doing a full port myself, I am now trying the method of taking an image made for a similar MTK device and transferring the device-specific files from my stock ROM, as shown in the following guide:
https://www.techubng.com/2017/09/how-to-port-lineage-os-14-nougat-rom-on-mtk.html
It says:
"From System/lib/hw: Delete all mt6572.so blobs and replace with these blobs: DOWNLOAD BLOBS
Now copy these files from stock to port:
System/lib/hwcomposer.mt65xx.so
System/lib/gralloc
System/lib/lib.audio.primary.so
Systemlib/lib.mali.soS
System/Etc
System/lib/libcameracustom.so
System/etc/firmware
System/lib/libfeatureio.so
boot/kernel
boot/unventd.rc (only if you are getting stuck at logo)
boot/Replace only camera lines under #Camera from stock boot.img init.rc to init.mt6572.rclib/libcamdrv.solib/libcamalgo.so"
But my stock ROM does not have any of the files he listed uner /system/lib! Can I ignore these files, or is there some other place where these files could be? (I checked /vendor)
Also, what about all the other files in /system/lib? Which ones are device-specific and does anything else need to be copied into the new ROM?
As for the TWRP, I have found tools like Easy Magic TWRP Installer ( https://forum.hovatek.com/thread-5162.html ) which will automatically do the porting given the boot.img and recovery.img from the stock ROM. Are these safe to use, as long as I provide the right info to the tool?
I want to use LineageOS on this tablet because the stock OS has some annoying bugs and is quite old (Android 4.4.2) considering how recent the tablet is and how much capability the tablet's hardware has. The manufacturer (IBall) has provided no updates at all.
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I saw Lineage OS 16 for HomTom S99….
I have HomTom HT70 with same Chipset of HomTom S99 MT6750T….
Im trying to read and follow carefully your guide but still i have bootloop..
Is it Possible to Port it to Homtom HT70 so we can have Android 9 too??
https://forum.xda-developers.com/ge...tom-ht70-6-0-hd-189-mt6750t-4gb-64gb-t3803052
hey, I have a samsung j7 j700t (t-mobile), and if it has a similar version that is the j700f / h / m, but I have tried it and it does not work for me. What do I have to do to make it work for me? Help me please!!!
AlexRsl1999 said:
hey, I have a samsung j7 j700t (t-mobile), and if it has a similar version that is the j700f / h / m, but I have tried it and it does not work for me. What do I have to do to make it work for me? Help me please!!!
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Different processsor. J700t is Qualcomm. J700f is exynos
kurtn said:
Different processsor. J700t is Qualcomm. J700f is exynos
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But my processor is Exynos 7580 to 1.5GHz
AlexRsl1999 said:
But my processor is Exynos 7580 to 1.5GHz
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If you haven't already, I'd recommend checking in Geekbench as there's a lot of conflicting information on the web. Usually, Samsung only puts the Exynos chip in GSM only devices sold outside the US.
There is a custom rom for a variant of my device (Huawei g760) please how can i make it work on my device (Huawei g7-UL20) they both have the same specs and processor everything is the same
YomaAroriode said:
There is a custom rom for a variant of my device (Huawei g760) please how can i make it work on my device (Huawei g7-UL20) they both have the same specs and processor everything is the same
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Have you unlocked the bootloader, before huawei stopped allowing it?
kurtn said:
Have you unlocked the bootloader, before huawei stopped allowing it?
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Click to collapse
Yes my bootloader is unlocked
kurtn said:
Have you unlocked the bootloader, befes ore huawei stopped allowing it?
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Yes my bootloader is unlocked
I followed this guide: https://forum.xda-developers.com/t/guide-porting-twrp-without-source.3843473/
And ported the twrp recovery made for huawei g760 to my g7-UL20
Now how do i modify the custom rom for it to work on my device. Please i need your help!!
kurtn said:
That's a hard task for getting started. A mtk device with no twrp available. I recommend to start with low hanging fruits. Like buying an old phone with dropped lineageOS support and building an updated version.
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Hi there, I just noticed this reply you had made and I have a question about a device that may have had Lineage support.
What I would like to do, once I have my new phone that is, is to take my current phone Motorola Edge+ (2020) and turn it into a small Lineage tablet.
However, there is one slight problem with this, and that is rhat there is currently no Lineage support for this device, but there is support for it's younger brother the Motorola Edge (2020).
Now I do know that porting is possible between devices, but I've seen a lot of guides says they should have the certain similarities such as processor and such.
However the CPU, GPU and Chipset are slightly different (Same brands though), will this pose a problem in porting?
I of course do realize that I will of course need the proprietary blobs from Motorola for this device and I believe I have found them.
Finally, I am curious if you know of any up to date guides on porting? I will of course continue researching myself, however I thought I would make an enquiry anyway.
Any help you may be able to provide would be greatly appreciated.
Bloodstalker
Bloodstalker82 said:
Hi there, I just noticed this reply you had made and I have a question about a device that may have had Lineage support.
What I would like to do, once I have my new phone that is, is to take my current phone Motorola Edge+ (2020) and turn it into a small Lineage tablet.
However, there is one slight problem with this, and that is rhat there is currently no Lineage support for this device, but there is support for it's younger brother the Motorola Edge (2020).
Now I do know that porting is possible between devices, but I've seen a lot of guides says they should have the certain similarities such as processor and such.
However the CPU, GPU and Chipset are slightly different (Same brands though), will this pose a problem in porting?
I of course do realize that I will of course need the proprietary blobs from Motorola for this device and I believe I have found them.
Finally, I am curious if you know of any up to date guides on porting? I will of course continue researching myself, however I thought I would make an enquiry anyway.
Any help you may be able to provide would be greatly appreciated.
Bloodstalker
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Install a gsi
GSI Rom´s For Motorola Edge +?
Hi for everyone! I have been looking for custom rom for our Motorola Edge +. But I haven't found any yet. However there is the option of the GSI rom's, this smartphone has an A / B system partition. 64-bit ARM CPU architecture. (information...
forum.xda-developers.com
Thank you very much for your reply. I had seen that I could uae a GSI, however I had not realized it is actually possible with Lineage. I clearly misread the topic.
kurtn said:
That's a hard task for getting started. A mtk device with no twrp available. I recommend to start with low hanging fruits. Like buying an old phone with dropped lineageOS support and building an updated version.
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Click to collapse
yo i have a phone with an unofficial version of lineageos 15.1 (Lenovo K8 Note) how would i go about building that newer version