Some noob questions about different kernels - AT&T, Rogers, Bell, Telus Samsung Galaxy S III

Hey there, I'm still fairly new to the custom Android stuff and I had a question about ROMs that isn't too clear to me.
Let me start off by saying I have made a nandroid backup, and I have flashed ROMs before on my HTC One X, but I recently switched to the S III because I was unhappy with the < 200 MB of usable RAM.
I am currently looking into trying 2-3 ROMs, AOKP, TuchMi, and maybe CyanogenMod 10, mostly because I am unhappy with the stock battery life.
From what I have been able to gather, the kernels for AOKP and TouchWiz based ROMs are incompatible, and it is not recommended to mix them up.
Here are some of my basic questions:
1) TuchMi and AOKP come with kernels inide them, are they automatically installed when I flash the ROM?
1a) If they are not automatically installed, what happens if I mix up the ROM/kernel?
2) Does a nandroid backup also backup the Kernel?

stock kernels work great for me always

ChrisG683 said:
Hey there, I'm still fairly new to the custom Android stuff and I had a question about ROMs that isn't too clear to me.
Let me start off by saying I have made a nandroid backup, and I have flashed ROMs before on my HTC One X, but I recently switched to the S III because I was unhappy with the < 200 MB of usable RAM.
I am currently looking into trying 2-3 ROMs, AOKP, TuchMi, and maybe CyanogenMod 10, mostly because I am unhappy with the stock battery life.
From what I have been able to gather, the kernels for AOKP and TouchWiz based ROMs are incompatible, and it is not recommended to mix them up.
Here are some of my basic questions:
1) TuchMi and AOKP come with kernels inide them, are they automatically installed when I flash the ROM?
1a) If they are not automatically installed, what happens if I mix up the ROM/kernel?
2) Does a nandroid backup also backup the Kernel?
Click to expand...
Click to collapse
If they already come with kernals then they will be automatically installed when flashing them in CWM recovery.
On my previous phone nandroid backups did not back up the kernal but on the S3 it looks like it may be backing up the kernal as it does state that it is making a backup of the boot image. My old phone never did receive official cwm so maybe this was a feature they added later.
Remember when changing kernals to ALWAYS wipe cache/dalvik cache before using a new kernal.

ChrisG683 said:
Hey there, I'm still fairly new to the custom Android stuff and I had a question about ROMs that isn't too clear to me.
Let me start off by saying I have made a nandroid backup, and I have flashed ROMs before on my HTC One X, but I recently switched to the S III because I was unhappy with the < 200 MB of usable RAM.
I am currently looking into trying 2-3 ROMs, AOKP, TuchMi, and maybe CyanogenMod 10, mostly because I am unhappy with the stock battery life.
From what I have been able to gather, the kernels for AOKP and TouchWiz based ROMs are incompatible, and it is not recommended to mix them up.
Here are some of my basic questions:
1) TuchMi and AOKP come with kernels inide them, are they automatically installed when I flash the ROM?
1a) If they are not automatically installed, what happens if I mix up the ROM/kernel?
2) Does a nandroid backup also backup the Kernel?
Click to expand...
Click to collapse
Yes kernels usually come with aokp and cm 10. tuch uses stock. During nandroids I believe that the kernel is backed up. I have flashed different ROMs including aokp, and then applying ktoonsez kernel and then restoring back to stock rooted with nandroid. Mixing ROMs and kernels can get ugly... sometimes unsupported also. Just make sure you make nandroid backups.
Try aokp and then ktoonsez' kernel. Wicked combo.
Also, what carrier are you with?
Sent from my SGH-I747 using xda premium

Thanks for the help everyone, much appreciated
thawte said:
Yes kernels usually come with aokp and cm 10. tuch uses stock. During nandroids I believe that the kernel is backed up. I have flashed different ROMs including aokp, and then applying ktoonsez kernel and then restoring back to stock rooted with nandroid. Mixing ROMs and kernels can get ugly... sometimes unsupported also. Just make sure you make nandroid backups.
Try aokp and then ktoonsez' kernel. Wicked combo.
Also, what carrier are you with?
Sent from my SGH-I747 using xda premium
Click to expand...
Click to collapse
I am with AT&T currently, I will try the AOKP -> ktoonsez kernel tomorrow . Part of me still wants to use TuchMi though for the battery life and I will miss some of the Sense apps... mostly the Phone app.

Ah OK. I am with ATT also. Let me know if you need any assistance. The aokp ROM and toonsez kernel should get very nice battery stats. Mine is doing pretty well.
Sent from my SGH-I747 using xda premium

bb
alright
ChrisG683 said:
Hey there, I'm still fairly new to the custom Android stuff and I had a question about ROMs that isn't too clear to me.
Let me start off by saying I have made a nandroid backup, and I have flashed ROMs before on my HTC One X, but I recently switched to the S III because I was unhappy with the < 200 MB of usable RAM.
I am currently looking into trying 2-3 ROMs, AOKP, TuchMi, and maybe CyanogenMod 10, mostly because I am unhappy with the stock battery life.
From what I have been able to gather, the kernels for AOKP and TouchWiz based ROMs are incompatible, and it is not recommended to mix them up.
Here are some of my basic questions:
1) TuchMi and AOKP come with kernels inide them, are they automatically installed when I flash the ROM?
1a) If they are not automatically installed, what happens if I mix up the ROM/kernel?
2) Does a nandroid backup also backup the Kernel?
Click to expand...
Click to collapse

Related

ROM question about flashing!

I am interested in running some ROM's on my galaxy nexus but I have a few questions:
I am looking at Peter Alfonso's Bugless Beast 4.1 ROM, I know that he does nightly builds, so my question being: If I install a build today, and he releases a nightly tomorrow or an upgrade, do I have to completely wipe and reflash the build nightly in order for it to stay up to date? Or is there a way to just update the build without losing everything.
Are ROM's safe? I know that they say to stay away from things like this but I feel like I can get the most out of my device by using a custom ROM.
If I don't go with a bugless beast ROM I am looking for something that is AS CLOSE to stock as possible, no added bloatware, I don't need all the fancy menu tweaks, custom kernals (which I guess I just dont understand exactly what a custom kernal does)
Any comments would be appreciated.
You can dirty flash them (flash it directly without wiping) and most of the time it will work without issues. If it doesn't then you will have to wipe then reflash.
ROMs are perfectly safe, and it's pretty hard to actually brick your phone. I'd say that custom ROMs offer customisation more than anything else but that's probably me.
Cyanogenmod is very well known in the community (and is rock solid) as well as AOKP (offers much more customisability at the moment).
Custom roms can help extend the life of a device. I know that I would have gotten tired of my previous phone, the Samsung Captivate, a lot sooner than I did if I hadn't flashed ICS onto it. Roms are completely safe. You just want to make sure you read up on how to fix a boot loop, or soft brick if you do end up in the situation. Make backups, have a plan B set and flash away. Definitely don't just go flashing stuff haphazardly, that's how you can mess up your phone.
You don't have to wipe when flashing nightlies on the same ROM. You don't lose data, its just like an update ota. you only have to wipe when switching between different ROMs.
Roms= 100% better than stock
Sent from my Galaxy Nexus using xda app-developers app
A little advice...keep more than one ROM on your SD card just in case.
Sent from my Galaxy Nexus using Tapatalk 2
Keys2bonez said:
I am interested in running some ROM's on my galaxy nexus but I have a few questions:
I am looking at Peter Alfonso's Bugless Beast 4.1 ROM, I know that he does nightly builds, so my question being: If I install a build today, and he releases a nightly tomorrow or an upgrade, do I have to completely wipe and reflash the build nightly in order for it to stay up to date? Or is there a way to just update the build without losing everything.
Are ROM's safe? I know that they say to stay away from things like this but I feel like I can get the most out of my device by using a custom ROM.
If I don't go with a bugless beast ROM I am looking for something that is AS CLOSE to stock as possible, no added bloatware, I don't need all the fancy menu tweaks, custom kernals (which I guess I just dont understand exactly what a custom kernal does)
Any comments would be appreciated.
Click to expand...
Click to collapse
As a few others said, you don't have to wipe switching between nightly builds. To flash the next version of BB, just clear cache & dalvik.

Currently best JB ROM (CM10 feautres-like)?

I know I'm probably gonna get some flak for this, but I'm not big on flashing new ROMS everyday. I'm using CM9 RC1 and rather than flashing RC2, I'd rather try something with Jellybean. I've tried both CM9 and AOKP build 40, and frankly felt more comfortable with CM9, I don't like some things in AOKP (like the huge notifications toggle, compared to the not so intrusive CM9 notification toggle).
So here's the question:
As of now, which is the best Jellybean ROM out there, incorporating the kind of features you'd expect from a CyanogenMod rom?
I had my eye in Jellybro and Paranoid, but would like to hear more from other users before plunging.
Thanks!
PS: Oh, I have GSM GNex
IonAphis said:
I know I'm probably gonna get some flak for this, but I'm not big on flashing new ROMS everyday. I'm using CM9 RC1 and rather than flashing RC2, I'd rather try something with Jellybean. I've tried both CM9 and AOKP build 40, and frankly felt more comfortable with CM9, I don't like some things in AOKP (like the huge notifications toggle, compared to the not so intrusive CM9 notification toggle).
So here's the question:
As of now, which is the best Jellybean ROM out there, incorporating the kind of features you'd expect from a CyanogenMod rom?
I had my eye in Jellybro and Paranoid, but would like to hear more from other users before plunging.
Thanks!
PS: Oh, I have GSM GNex
Click to expand...
Click to collapse
I don't think I know of any ROMs like CM10 just the CM10 Alpha builds and the only one I have seen so far that is only CM10 is Kang's JellyBro but be warned that these CM10 ROMs are Alpha builds meaning that a lot of things are going to be broken and you will be flashing an updates about once a week as they fix new bugs. Of course you don't have to flash the updates that often but you will probably want to get the increased functionality with each update.
Xenon HD 4.0
What about "stock" ROMs like Android Revolution HD? How do these stack up against trully stock JB?
Ensifolk said:
Xenon HD 4.0
Click to expand...
Click to collapse
I completely agree. It's an awesome ROM. This coming from a person who had never unlocked, rooted, or flashed a ROM on the Nexus. It's very stable and rocks!
Also Iceandfire updates are frequent.
Swapped from Jelly Belly to AOKP JB preview and loving it, it's much more stable. As far as the notif toggles in AOKP.. You can easily change them to your liking in ROM Control, I don't like the big "switch" style toggles either.
total noob here, read 100,s of post and just really have two questions .if I use the toolkit and make recovery, root and unlock boot loader then down.load something like the paranoidandroid Rom an flash that on I'm good to go? an question two in the toolkit I seen the couple different back ups ,does any of them restore like contact photos an other customizations I've had before hand and if so do I just wait til I have th paranoid up and running and follow toolkit steps to restore ?thank you much
Sent from my Galaxy Nexus using xda app-developers app
davefromohio said:
total noob here, read 100,s of post and just really have two questions .if I use the toolkit and make recovery, root and unlock boot loader then down.load something like the paranoidandroid Rom an flash that on I'm good to go? an question two in the toolkit I seen the couple different back ups ,does any of them restore like contact photos an other customizations I've had before hand and if so do I just wait til I have th paranoid up and running and follow toolkit steps to restore ?thank you much
Sent from my Galaxy Nexus using xda app-developers app
Click to expand...
Click to collapse
Well you can either create a nandroid backup through recovery or you can use Titanium Backup and then make sure when you back up you back up contact storage and restore contact storage. Doing either method will backup and restore all your contacts as they were. The same can be done for backing up and restoring text messages except you back up the phone/messaging storage in Titanium Backup.

[Q] Kan kernels be flashed and keep all my data?

Yes I have searched, and yes I understand that my firmware version must match the kernel I'm trying to flash, but my question is unique, I have yet to find an answer.
Basically I want to flash a kernel that is kompatible with my current rooted stock ROM, so I kan keep all my data, but utilize some of the CPU tweaking governors and I/O kontrollers that other kernels use.
If the kernel says TouchWiz, does that make it kompatible with my stock ROM?
I don't need any new features or a kolor make over from flashing a new ROM, but I would like better battery life and maybe more kontrol over my CPU speed and voltage.
Also, is GB REALLY the way to go for battery life? How would I go about keeping all my kurrent data, but moving to a GB ROM or kernel?
Thank you for your tyme in this matter.
KingUniverse said:
Yes I have searched, and yes I understand that my firmware version must match the kernel I'm trying to flash, but my question is unique, I have yet to find an answer.
Basically I want to flash a kernel that is kompatible with my current rooted stock ROM, so I kan keep all my data, but utilize some of the CPU tweaking governors and I/O kontrollers that other kernels use.
If the kernel says TouchWiz, does that make it kompatible with my stock ROM?
I don't need any new features or a kolor make over from flashing a new ROM, but I would like better battery life and maybe more kontrol over my CPU speed and voltage.
Also, is GB REALLY the way to go for battery life? How would I go about keeping all my kurrent data, but moving to a GB ROM or kernel?
Thank you for your tyme in this matter.
Click to expand...
Click to collapse
TouchWiz kernels, will work with with stock as far as i know. check this thread http://forum.xda-developers.com/forumdisplay.php?f=1284 for info on different types of kernels. Some of the installs allow you to keep data as well. And from what i hear GB is the way to go on this phone, best battery life and best overall user experience on this phone. Ive never ran GB on it, but have come across alot of threads where people are praising GB over ICS and JB for this phone.
mindstate said:
TouchWiz kernels, will work with with stock as far as i know. check this thread http://forum.xda-developers.com/forumdisplay.php?f=1284 for info on different types of kernels. Some of the installs allow you to keep data as well. And from what i hear GB is the way to go on this phone, best battery life and best overall user experience on this phone. Ive never ran GB on it, but have come across alot of threads where people are praising GB over ICS and JB for this phone.
Click to expand...
Click to collapse
If I'm kurrently on STOCK ROM, with AGAT recovery, is it possible to just flash over to a GB Kernel or ROM? and keep data? I'm really just looking for a solution to keep all my apps+data and have either a Kernel or ROM that improves battery life. (I enjoy klipping my Otter Box Defender and walking around with Pandora playing.)
I've also read about backing up apps with Titanium or a similar program, flashing to a new ROM, then restoring the apps+data, is that something that would work in this situation? Again, I apologize if this question has been asked and answered before, but I feel like my situation is unique in the sense of keeping my data, and not really needing the extra bells and whistles of a new ROM.
KingUniverse said:
Yes I have searched, and yes I understand that my firmware version must match the kernel I'm trying to flash, but my question is unique, I have yet to find an answer.
Basically I want to flash a kernel that is kompatible with my current rooted stock ROM, so I kan keep all my data, but utilize some of the CPU tweaking governors and I/O kontrollers that other kernels use.
If the kernel says TouchWiz, does that make it kompatible with my stock ROM?
I don't need any new features or a kolor make over from flashing a new ROM, but I would like better battery life and maybe more kontrol over my CPU speed and voltage.
Also, is GB REALLY the way to go for battery life? How would I go about keeping all my kurrent data, but moving to a GB ROM or kernel?
Thank you for your tyme in this matter.
Click to expand...
Click to collapse
Just because a kernel says TouchWiz it does not mean it is compatible with any TouchWiz rom. The kernel should be one that is made for the specific Android version of the rom.
There are aosp Jelly Bean roms now that have battery life that is comparable to GB. Baked Blackbean by sniper, Magical Unicorn by ktempleton, and Wild For The Night by dastin 1015 are excellent roms. Also MotoBlur'd Jelly Bean by bilgerryan which is based on Wild For The Night is excellent.
I have tried the stock JB roms and always come back to the aosp roms. They are so much smoother.
Do not try do use a GB kernel on an ICS or JB rom.
I always use Titanium Backup to restore apps and app data after doing a clean rom installation. Do not restore system data with Titanium Backup, only app data.
Just follow the installation instructions for the rom you want to install and you shouldn't have any trouble.
Sent from my SPH-D710 using Xparent Cyan Tapatalk 2
jaxon01 said:
Just because a kernel says TouchWiz it does not mean it is compatible with any TouchWiz rom. The kernel should be one that is made for the specific Android version of the rom.
There are aosp Jelly Bean roms now that have battery life that is comparable to GB. Baked Blackbean by sniper, Magical Unicorn by ktempleton, and Wild For The Night by dastin 1015 are excellent roms. Also MotoBlur'd Jelly Bean by bilgerryan which is based on Wild For The Night is excellent.
I have tried the stock JB roms and always come back to the aosp roms. They are so much smoother.
Do not try do use a GB kernel on an ICS or JB rom.
I always use Titanium Backup to restore apps and app data after doing a clean rom installation. Do not restore system data with Titanium Backup, only app data.
Just follow the installation instructions for the rom you want to install and you shouldn't have any trouble.
Sent from my SPH-D710 using Xparent Cyan Tapatalk 2
Click to expand...
Click to collapse
Well, I'll look around at some JB AOSP ROMs but might try a GB rom to see the difference. Another quick question, will my Titanium App Backups work when moving from ICS to GB?
Yes. Except apps that don't support gb. Like chrome.
sent from MY BAD A$$ ET4G
KingUniverse the only way to safely keep data/app data between kernel flashes is when staying within the same type of kernel, ex.ics to ics JB to JB, when you go cross build like ics to JB or JB to Gb your data will make a mess of your phone. App data can be forgiving at times but sometimes it can create all kinds of issues.
Best example is the one clicks, they always caution about using "no data" (keeps your data) only if coming from same build type (Ics to Ics JB to JB) so you dont bork.
Pp. :thumbup::beer:
sent from a jellybean filled epic touch.

[Q] Kernel Question

Hey guys I want to make sure I'm safe when switching from rom to rom, and I am just confused about kernels. I understand that different kernels pertain to certain roms (AOSP, CM, TW, etc..), but what I don't understand is do all roms contain kernels? So will I always be safe switching from one rom to another, or do I need to make sure the roms come with the required kernel and how? So confused .
Thanks for the help.
mblakev said:
Hey guys I want to make sure I'm safe when switching from rom to rom, and I am just confused about kernels. I understand that different kernels pertain to certain roms (AOSP, CM, TW, etc..), but what I don't understand is do all roms contain kernels? So will I always be safe switching from one rom to another, or do I need to make sure the roms come with the required kernel and how? So confused .
Thanks for the help.
Click to expand...
Click to collapse
AOSP has its own kernel and will most likely come with a kernel when you flash a AOSP ROM that goes for CM also. If you are just jumping from one TW to one TW rom you can just use the STOCK kernel. I know the JEDI ROM comes with its own SABER kernel and PERSEUS you have to flash yourself. Both these kernels are TW kernels so do not flash it to a AOSP kernel. This will result in a boot loop.
Thanks! Def appreciated. I was looking at Jelly beer and it said in the OP, make sure you have the correct recovery/kernel so I don't really know where you're supposed to get the CM kernel from. Ill just make sure to read carefully, and always ask first i guess.
Flashing PA 3.1 now, wish me luck!!!
mblakev said:
Thanks! Def appreciated. I was looking at Jelly beer and it said in the OP, make sure you have the correct recovery/kernel so I don't really know where you're supposed to get the CM kernel from. Ill just make sure to read carefully, and always ask first i guess.
Flashing PA 3.1 now, wish me luck!!!
Click to expand...
Click to collapse
haha yeaaa just read through everything. I have converted to TRWP recovery.
but PA 3.1 should be nice! I use alot of the samsung apps so I keep to the TW roms
I'm having great results with Vanilla RootBox and the SoapKernel
Hey and always just do a backup. That way doesn't matter what happens you can always restore.
~PsyCl0ne
Sent from my SAMSUNG-SGH-I317 using xda app-developers app

[Q] please help

Hello all. First I want to thank everyone for still being around to help, especially on such an old device.
Anyway, I recently bought one of these and got it rooted via odin. Currently that's all I've done to her. I have been looking over this forum, android forums, and Google in general prior to posting, I want to solve problems on my own, but when I can't, I'm not scared to ask for help. And I need help with a few issues. I will seperate them, to make answering them easier.
1) is twrp not available for this model?
2) if not, the only other recoverys I can find is Phils TouchWiz, and ClockworkMod recovery touch 5.8.1.5. I wouldn't think these are the same, which is suggested? Also Phils Touchwiz was last updated (that I can find) to 4.1.2 which is where I currently am, am I want to go to 4.4
3) I only see 2 ROMs listed on here, and 1 is one of the ones I was thinking of using in Dirty Unicorns. The other I was thinking about was CyanogenMod. Which of these two is suggested?
4) I have no service on this phone, as its my tinkering device. The only thing I need to work is WiFi. That being said, do I need to flash a new modem?
Do I need to flash a new kernel?
Thanks for any help you can throw me. I know there are lots of tuts for all these questions, but frankly they are all very old, and this stuff changes by the day...
1. Yes but this device has recovery and kernel built in together, this recovery is only for flashing / wiping, other than that, it is not usable with other custom roms unless the devs build it to use that
recovery along with the kernel.
2. It's the same as question 1, For Touchwiz Jellybean, you'll need a recovery kernel that supports the android version and firmware, otherwise it wouldn't work or boot up, Agat's Source GB27 for GB27 Touchwiz ROMs. Or specific AOSP Kernels for certain kernel build updates ( versions are compatible with the build date of the ROM's Original Kernel, meaning it only works on certain ROMs that are updated with the same kernel build, for example, A custom 0.0.25 will not work with stock 0.0.26 because there was a major update change in the kernel that'll make 0.0.25 not usable on it. If you use a kernel based on a specific date on an AOSP ROM that frequently updates the kernel, it may not boot up. )
3. The AOSP ROMs that are being updated at the moment are the Teams that do Nightlies. So Cyanogenmod is the only AOSP ROM that's being updated weekly for this device, I have not checked on the other ones.
4. No need to flash a modem if you don't have data service, however it may help either way when using WiFi due to dropped connections, stability etc. For AOSP, use any ICS modem, for Touchwiz, use the same android firmware modem.
Flashing a new kernel is not needed unless you don't like how the stock kernel performs whether if it's power saving or performance. AOSP kernels are kind of limited as the ones out now work with different build dates of the ROMs, Touchwiz has a couple, but Agat63's Source Kernel is recommended by everyone for GB27.

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