Hello there,
I'm running CM 10.1 currently and looking into flashing a new kernel (KT747) for better battery performance. I am still new to kernels but I was wondering how I would go about backing up the current kernel so that I can restore it if anything goes wrong, or if I am unhappy with the new one.
Thanks for the help.
Regards,
Mike
I just flashed stable cm 10.1.3 and am in the same position as you. Let me know if you find a kernel for us! I'm going to continue searching tonight.
Cameronmx9 said:
I just flashed stable cm 10.1.3 and am in the same position as you. Let me know if you find a kernel for us! I'm going to continue searching tonight.
Click to expand...
Click to collapse
This is the kernel I'm looking to flash, looks like a great one with lots of options for performance tweaks and battery saving:
http://forum.xda-developers.com/showthread.php?t=1756776
Also, I found an app called Trickster MOD from the Play Store that allows you to backup your kernel... however I'm not sure if that's the correct way to go about doing this, I just want to be sure to have a backup of the CM kernel in case things go awry with this one.
Regards,
-
Cryceratops said:
This is the kernel I'm looking to flash, looks like a great one with lots of options for performance tweaks and battery saving:
http://forum.xda-developers.com/showthread.php?t=1756776
Also, I found an app called Trickster MOD from the Play Store that allows you to backup your kernel... however I'm not sure if that's the correct way to go about doing this, I just want to be sure to have a backup of the CM kernel in case things go awry with this one.
Regards,
-
Click to expand...
Click to collapse
So I went ahead and flashed with that kernel and everything seems to work so far. I haven't made any adjustments yet for battery optimization, but I'm working on it right now. I used this kernel from that thread: http://goo.gl/52odw
Goodluck, and let me know how it goes!
Cameronmx9 said:
So I went ahead and flashed with that kernel and everything seems to work so far. I haven't made any adjustments yet for battery optimization, but I'm working on it right now. I used this kernel from that thread: http://goo.gl/52odw
Goodluck, and let me know how it goes!
Click to expand...
Click to collapse
That's the one I've downloaded as well, still waiting on a reply as to how to safely backup. Let me know if you notice any improvements.
Regards,
-
Hey man, if that kernel fails you there's another kernel called leankernel, which I actually prefer over kt747. I can usually overclock higher with better stability. Though, it's all up to how your phone handles it. Try making a complete backup of your rom if you can to save your kernel. Good luck.
chistoefur said:
Hey man, if that kernel fails you there's another kernel called leankernel, which I actually prefer over kt747. I can usually overclock higher with better stability. Though, it's all up to how your phone handles it. Try making a complete backup of your rom if you can to save your kernel. Good luck.
Click to expand...
Click to collapse
Thanks for the suggestion, I'm still waiting to find out if there's actually a way to backup just the kernel without having to backup the entire ROM. If I should happen to want to go back to the CM kernel I don't want to have to restore the whole ROM, I can't seem to find an answer anywhere.
Cryceratops said:
Thanks for the suggestion, I'm still waiting to find out if there's actually a way to backup just the kernel without having to backup the entire ROM. If I should happen to want to go back to the CM kernel I don't want to have to restore the whole ROM, I can't seem to find an answer anywhere.
Click to expand...
Click to collapse
I'm kinda screwed right now. The file system on 4.2 is awful, and if you restore a previous rom and install 4.2 again it creates more of a mess. I'm in the process of fixing all of these directories currently. Just be careful.
Cameronmx9 said:
I'm kinda screwed right now. The file system on 4.2 is awful, and if you restore a previous rom and install 4.2 again it creates more of a mess. I'm in the process of fixing all of these directories currently. Just be careful.
Click to expand...
Click to collapse
Try to just reflash the rom, or flash a new nightly over it. That's usually what I do when I have a kernel I don't like, it flashes right over it back to the stock cm kernel.
chistoefur said:
Try to just reflash the rom, or flash a new nightly over it. That's usually what I do when I have a kernel I don't like, it flashes right over it back to the stock cm kernel.
Click to expand...
Click to collapse
The kernel is great, it's just the file system from 4.2 creating duplicates of my directories.
Related
Who is running OMGB 1.1.1? I am thinking about switching kernels and wonder what is compatible with that ROM? Also, how risky is it to switch kernels. People keep telling me you can ruin your phone.
Thanks!
irl5fan said:
Who is running OMGB 1.1.1?
Click to expand...
Click to collapse
I'll be flashing it a little later today.
I am thinking about switching kernels and wonder what is compatible with that ROM?
Click to expand...
Click to collapse
Are you currently using the rom and if so, what is wrong with the default kernel?
Also, how risky is it to switch kernels. People keep telling me you can ruin your phone.
Thanks!
Click to expand...
Click to collapse
Rooting can ruin your phone. A bad flash can ruin your phone. The good thing about flashing kernels and I've flash a lot of them, you usually can go back into recovery and flash another one if your device doesn't play well with a particular one.
I am currently running CM7 and. Kernel 2.6.37.4 cm. Looking to switch today
irl5fan said:
I am currently running CM7 and. Kernel 2.6.37.4 cm. Looking to switch today
Click to expand...
Click to collapse
I hear ya. I'm itching to flash it right now, but my wife and one of my sons are enroute to Orlando and I don't want to flash a rom that I'm uncertain of in case I need to contact them or vice-versa. I haven't had a "home phone" in years. We all have smartphones..lol
I went ahead and flashed this rom and then added my 3rd party apps and I must say that i am impressed. It is stable and everything appears to work as it should. I did notice a bug where when you add a pattern lock, the default lock screen no longer displays, not even after a reboot. I just finished making a nandroid backup of it and will definitely use this rom. This is shweeeet!
You can flash an AOSP kernel. The SBC kernels can ruin your phone. I am using tiamat nonsbc aosp kernel with this rom.
Thanks for the info guys! I ended up flashing OMGB rom and like it so far. Do I flash that kernel over the rom then? Do I just find the kernel in one of these threads or is it on ROM Manager?
Thanks
Hey all
lately I noticed that my stock android 4.2.2 (not rooted) has become a bit sluggish sometimes. I like stock android but I feel as if the GNex is really running on the edge now in 2013 if I compare to the newest hi-tek android devices/Iphone 5 etc.
Could flashing a custom rom improve the speed and smoothness ? Also maybe I'd like to try out hybrid mode like you have in PA. I also heard a lot of good stuff about Sorcery, don't really know what would suit me the best.
Do you guys think rooting + flashing a custom rom would still my hunger for a new phone for some time still ?
Hope to have some tips that can move me into the right direction. Nonetheless I still love my GNex but I hate when it lags a bit sometimes..
wtr_dhd said:
Could flashing a custom rom improve the speed and smoothness ?
Do you guys think rooting + flashing a custom rom would still my hunger for a new phone for some time still ?
Click to expand...
Click to collapse
Yes, it could. A new home launcher also could improve speed and smoothness.
Yeah, I think for sure you will be content with your phone longer if you try different ROMs on it occasionally, or even just recieving new updates to a current ROM.
sure dude why not.. if u root u can overclock and thus increasing your performance, rom selection is self choice related try every rom and kernel and stick to the one you love
Sent from my Galaxy Nexus
WiredPirate said:
Yes, it could. A new home launcher also could improve speed and smoothness.
Yeah, I think for sure you will be content with your phone longer if you try different ROMs on it occasionally. Or even just updates to those ROMs.
Click to expand...
Click to collapse
What are the most performance/smoothness based roms ? Or is it more a kernel thing ? Although I don't want to experiment with 1001 settings and kernels on a rom before I get it right. I reckon that a developer puts a stable kernel together with the rom he makes and releases..
wtr_dhd said:
What are the most performance/smoothness based roms ? Or is it more a kernel thing ? Although I don't want to experiment with 1001 settings and kernels on a rom before I get it right. I reckon that a developer puts a stable kernel together with the rom he makes and releases..
Click to expand...
Click to collapse
Everyone has their own favorites. I personally recommend you try the newest stable CM, or even the M series if you prefer the newest features before the are implemented in to the stable builds.
Stick to the prepackaged kernel so you don't develop issues from using a third party kernel on a ROM it wasn't designed for.
That's my preference, hope you find yours. "Best ROMs" or "smoothest ROMs" threads get closed quick around here.
WiredPirate said:
Everyone has their own favorites. I personally recommend you try the newest stable CM, or even the M series if you prefer the newest features before the are implemented in to the stable builds.
Stick to the prepackaged kernel so you don't develop issues from using a third party kernel on a ROM it wasn't designed for.
That's my preference, hope you find yours. "Best ROMs" or "smoothest ROMs" threads get closed quick around here.
Click to expand...
Click to collapse
Ok thx, should try out CM then maybe, seems the most logical step too. I consciously didn't use the words "best rom" , as that's indeed each one to its own. Though, smoothness is imo an objective thing.
One of the best things about flashing a custom Rom and Kernel is the Fast Charge support! Pretty much if you just use a standard USB port on your PC it will charge as fast as a wall charger.
wtr_dhd said:
Hey all
lately I noticed that my stock android 4.2.2 (not rooted) has become a bit sluggish sometimes. I like stock android but I feel as if the GNex is really running on the edge now in 2013 if I compare to the newest hi-tek android devices/Iphone 5 etc.
Could flashing a custom rom improve the speed and smoothness ? Also maybe I'd like to try out hybrid mode like you have in PA. I also heard a lot of good stuff about Sorcery, don't really know what would suit me the best.
Do you guys think rooting + flashing a custom rom would still my hunger for a new phone for some time still ?
Hope to have some tips that can move me into the right direction. Nonetheless I still love my GNex but I hate when it lags a bit sometimes..
Click to expand...
Click to collapse
First question... Have you rebooted in awhile?
Second question... How many background tasks are constantly running.
Custom ROM/Kernel makes sense only if you go for a minimalistic ROM/fine-tuned kernel. Honestly, Stock ROM is fine, unless you need features missing. Or look for just straight optimized ROMs like RasBeanJelly Vanilla and others that are only trying to fix bugs and not add bloat.
Kernel, pick your flavor, but always go with 'stable' ones and not nightlies if you want to avoid issues.
For me, I do Stock ROM (or would consider RasBeanJelly Vanilla) at best, and Franco Kernel (though stock is good enough).
Another point... Key Lime Pie (v. 5.0) will be announced likely in a few weeks at Google I/O 2013. Why deal with unlocking the bootloader, flashing ROMS, and Kernels, then to have to wait for source code to be released to get the newest and latest?
Bootloader was unlocked from the day I got it (to go from yakjuxw to takju). Now I just rooted my phone with custom bootloader, but it's still on stock takju. Do I still get the Google OTA's ? Iirc I need the stock bootloader for this ?
Have you tried to wipe data?
You can try this first if you like stock. If you want to try a smooth custom rom I recommend you xylon + ak kernel.
wtr_dhd said:
Bootloader was unlocked from the day I got it (to go from yakjuxw to takju). Now I just rooted my phone with custom bootloader, but it's still on stock takju. Do I still get the Google OTA's ? Iirc I need the stock bootloader for this ?
Click to expand...
Click to collapse
I believe TWRP and CWM will allow you to install OTAs, but you need to have stock kernel and no other system apps that are not apart of Google's stock Android. However, you wouldn't wait anyways for OTAs since you can just flash the updates that appear on XDA once they arrive. Either via fastboot or the custom recovery (if they work).
If you go to a custom ROM, you will not receive OTAs, (or shouldn't if the ROM was built right). You will have to wait for the ROM to be upgraded by the maintainer of it.
dude try something new other than stock..
CM 10.1 + ak diamond
governor = ondemand
stable,good speed..
give it a try
whitedragonz83 said:
I believe TWRP and CWM will allow you to install OTAs,
Click to expand...
Click to collapse
I can confirm this behaviour on TWRP.
wtr_dhd said:
Bootloader was unlocked from the day I got it (to go from yakjuxw to takju). Now I just rooted my phone with custom bootloader, but it's still on stock takju. Do I still get the Google OTA's ? Iirc I need the stock bootloader for this ?
Click to expand...
Click to collapse
Not sure if by mistake but, (as of the date of this post) there's no custom bootloader for any of the GSM/LTE variants of the Google Galaxy Nexus.
What he's talking about is a custom recovery. (This needed correction so as to not to mislead readers.)
Sent from my Nexus
bk201doesntexist said:
I can confirm this behaviour on TWRP.
Not sure if by mistake but, (as of the date of this post) there's no custom bootloader for any of the GSM/LTE variants of the Google Galaxy Nexus.
What he's talking about is a custom recovery. (This needed correction so as to not to mislead readers.)
Sent from my Nexus
Click to expand...
Click to collapse
Good point you're right, sorry should have been more clear.
I'm indeed talking about a custom recovery, not bootloader. Atm I only have lockscreen policy with clock hack and SuperSU/SuperUser apps who use the root. Is this enough to prevent me from having google OTA's ? Still didn't get to flashing another rom lol, I guess I like stock. And it might be between my ears but having rebooted + rooted the phone made it feel snappier again.
Thanks for all the feedback guys.
wtr_dhd said:
Good point you're right, sorry should have been more clear.
I'm indeed talking about a custom recovery, not bootloader. Atm I only have lockscreen policy with clock hack and SuperSU/SuperUser apps who use the root. Is this enough to prevent me from having google OTA's ? Still didn't get to flashing another rom lol, I guess I like stock. And it might be between my ears but having rebooted + rooted the phone made it feel snappier again.
Thanks for all the feedback guys.
Click to expand...
Click to collapse
Again, if you alter system files the OTA will fail, if it needs to update those.
Well my (noob) question was if above mentioned things such as ClockHack who need SuperSU permission altered my system files?
I am using Purity with Leankernel. Gives me a smooth experience and great battery life.
Also it has the PIE and you can use XPosed framework to get Per App DPI with any ROM like I do.
But I have tried almost all the ROMS in the development section except for a couple maybe. I keep returning to Purity, Vanir and Cataclysm most of the time when I have something important come up and I cannt flash a new ROM every other day.
wtr_dhd said:
Well my (noob) question was if above mentioned things such as ClockHack who need SuperSU permission altered my system files?
Click to expand...
Click to collapse
The answer should be obvious... yes.
Sent from my Nexus 7 using Tapatalk HD
I searched up and down for this, but for some reason when ever I use many of the roms here my menu buttons are still active when I am in call causing me to push the search button and cause google voice search to pop up. This happens way to often.
It doesnt happen when I use the CM Windows based installer to install the rom, but the battery and performance on that is not too great.
Rushing's Roms dont seem to have this but I dont really like touchwiz, and when I try any roms with the uber kernel they all have this bug and I tried to search in those threads for this but the search engine could not find anything.
I think its UBER kernel related, but also the CM Rom with Diablo kernel does the same thing, and I looked up and down in trickster mod control for button behavior but I just cant find it.
Anyone could point me in the right direction at least?
oh come on, anyone?
TheProfiteer said:
I searched up and down for this, but for some reason when ever I use many of the roms here my menu buttons are still active when I am in call causing me to push the search button and cause google voice search to pop up. This happens way to often.
It doesnt happen when I use the CM Windows based installer to install the rom, but the battery and performance on that is not too great.
Rushing's Roms dont seem to have this but I dont really like touchwiz, and when I try any roms with the uber kernel they all have this bug and I tried to search in those threads for this but the search engine could not find anything.
I think its UBER kernel related, but also the CM Rom with Diablo kernel does the same thing, and I looked up and down in trickster mod control for button behavior but I just cant find it.
Anyone could point me in the right direction at least?
Click to expand...
Click to collapse
If it bothers you that much, don't use Uber. Simple.
meekrawb said:
If it bothers you that much, don't use Uber. Simple.
Click to expand...
Click to collapse
Its not that I dont want to use UBER or any other Kernel, if its something that IS as a result of the Kernel and everything else is works well I can deal.
but maybe its an issue thats been fixed and I cant seem to locate the thread because I maybe simply do not know how to word it correctly.
TheProfiteer said:
Its not that I dont want to use UBER or any other Kernel, if its something that IS as a result of the Kernel and everything else is works well I can deal.
but maybe its an issue thats been fixed and I cant seem to locate the thread because I maybe simply do not know how to word it correctly.
Click to expand...
Click to collapse
Ahh. So do the ROMs still have the problem if you don't flash a different kernel?
meekrawb said:
Ahh. So do the ROMs still have the problem if you don't flash a different kernel?
Click to expand...
Click to collapse
been trying it out with various different combinations.
Vanilla AOKP and CM seem ok.
ThDudes's CM 10.2 + Diablo Kernel (Kernel already fused into the rom) button issue still persists, UBER Kernel flashed with TWRP on both AOKP on CM button issue persists.
but then, if I reflash vanilla AOKP or CM through TWRP the issue will still persist.
Its either the Kernel or TWRP, as you "shouldnt" flash UBER through CWP i cant quite isolate the problem.
been going back and forth quite a bit here, I would love to stick with vanilla AOKP or CM but idle battery drain is extremely excessive, and they both crash when trying to change the governor.
I am just trying to find a good stable ground to operate on as I save up for an S4 and to have a well known return point after I go on a flashing spree.
I have only been dabbling with 4.3 based roms, so I havent had the chance to try any previous version roms yet, other than Rushing's Shadow rom which was great with battery, super fast, but sadly had touchwiz which i tried to get used to but it was missing alot of the things I needed.
TheProfiteer said:
I am just trying to find a good stable ground to operate on as I save up for an S4 and to have a well known return point after I go on a flashing spree.
I have only been dabbling with 4.3 based roms, so I havent had the chance to try any previous version roms yet, other than Rushing's Shadow rom which was great with battery, super fast, but sadly had touchwiz which i tried to get used to but it was missing alot of the things I needed.
Click to expand...
Click to collapse
I have been using Slimbean 4.3.1 with @Cl3Kener stable kernel for a long while. It has been rock solid for me.
meekrawb said:
I have been using Slimbean 4.3.1 with @Cl3Kener stable kernel for a long while. It has been rock solid for me.
Click to expand...
Click to collapse
I'll have to give that a try. Been out of the loop on slimbean, used it for a little on my S1 Vibrant a while ago.
Just flashed LiquidSmooth, and apart from being only 4.1.2 AOSP, seems to be running pretty well.
Does anyone know what the Experimental kernel does?There are no informations about it in the OP of the Rom...I downloaded it but it appears to be for the Nexus 5...What is the difference between this kernel and the rom-kernel???
stathis_21 said:
Does anyone know what the Experimental kernel does?There are no informations about it in the OP of the Rom...I downloaded it but it appears to be for the Nexus 5...What is the difference between this kernel and the rom-kernel???
Click to expand...
Click to collapse
Who made the kernel?
After updating to the latest Mahdi rom and backing up what I had, I flashed the experimental kernel and wiped cache/dalvik.
It wouldn't boot, so I had to restore what I had.
No idea what it was supposed to do.
ruibing said:
After updating to the latest Mahdi rom and backing up what I had, I flashed the experimental kernel and wiped cache/dalvik.
It wouldn't boot, so I had to restore what I had.
No idea what it was supposed to do.
Click to expand...
Click to collapse
Yeah, if it said it was for the nexus, it wasn't going to work. Kernels should be device specific, and I am very skeptical of those that have been supposedly ported over, rather than compiled from the device's kernel source and then updated with new options.
Experimental in regards to kernel devevelopment means there are probably issues beyond the norm.
sleekmason said:
Yeah, if it said it was for the nexus, it wasn't going to work. Kernels should be device specific, and I am very skeptical of those that have been supposedly ported over, rather than compiled from the device's kernel source and then updated with new options.
Experimental in regards to kernel devevelopment means there are probably issues beyond the norm.
Click to expand...
Click to collapse
The filename is Mahdi-Hammerhead-exp-4.4.2-v1.7-23-03-2014.zip, but I thought that just meant it was somehow derived from the Nexus 5. Don't know why it would be posted in the Mahdi rom OP if it didn't have a chance of working.
To make myself clear.I said that nexus 5 thing, because the file of the kernel says hammerhead..But everything is fine..I use the rom as it is....I want to thank the dev for this amazing rom..A big thank you to all the devs..All of them have put a lot of work to their projects..I just made a question about this kernel.nothing else..Thanks for the reply..
stathis_21 said:
To make myself clear.I said that nexus 5 thing, because the file of the kernel says hammerhead..But everything is fine..I use the rom as it is....I want to thank the dev for this amazing rom..A big thank you to all the devs..All of them have put a lot of work to their projects..I just made a question about this kernel.nothing else..Thanks for the reply..
Click to expand...
Click to collapse
Mahdi has a good reputation for being dependable. Glad you found something you like!
Ok so I've searched and read up on all these great kernals, but my brain is so boggled and confused on everything, I'm hoping 1 of u great devs can advise and or gimme your opinion on what's right for me considering what I'm looking for:
I'm running stock rooted rom 4.4.2 sense 6, twrp 2.7.1.1 verizon
Basically I'm just looking to stay as close to stock as possible while at the same time enabling wake gestures (double tap to wake) etc… I don't really mess with over/under volting at all. 1 more thing I'm looking for is the system to mount as r/w automatically on boot. (im pretty sure I read the kernel is what controls this) if anyone can guide me on which kernal is best for what I'm looking for, it would b much appreciated…
Kernels are all a matter of opinion and what works best for the end user. Try each one for a little while and find what works for you. They all should have system r/w access by default. The only one I think doesn't is the actual stock sense kernel which none of these roms use. I would suggest however that you upgrade your recovery to version 2.7.1.2 from here. http://mdmower.cmphys.com/twrp-m7vzw/
disconnecktie said:
Kernels are all a matter of opinion and what works best for the end user. Try each one for a little while and find what works for you. They all should have system r/w access by default. The only one I think doesn't is the actual stock sense kernel which none of these roms use. I would suggest however that you upgrade your recovery to version 2.7.1.2 from here. http://mdmower.cmphys.com/twrp-m7vzw/
Click to expand...
Click to collapse
I was wondering about that recovery… how exactly do I upgrade it? I've never upgraded a custom recovery, I installed 2.7.1.1 with flashify… do I just do that again? N it'll just overwrite 2.7.1.1?
bdizzle1686 said:
I was wondering about that recovery… how exactly do I upgrade it? I've never upgraded a custom recovery, I installed 2.7.1.1 with flashify… do I just do that again? N it'll just overwrite 2.7.1.1?
Click to expand...
Click to collapse
I also have TWRP Manager app, if that would work or not?
bdizzle1686 said:
I was wondering about that recovery… how exactly do I upgrade it? I've never upgraded a custom recovery, I installed 2.7.1.1 with flashify… do I just do that again? N it'll just overwrite 2.7.1.1?
Click to expand...
Click to collapse
Yeah just use flashify.
disconnecktie said:
Kernels are all a matter of opinion and what works best for the end user. Try each one for a little while and find what works for you. They all should have system r/w access by default. The only one I think doesn't is the actual stock sense kernel which none of these roms use. I would suggest however that you upgrade your recovery to version 2.7.1.2 from here. http://mdmower.cmphys.com/twrp-m7vzw/
Click to expand...
Click to collapse
For some reason when I click on the download for 2.7.1.2 it keeps just showing me a page with lots of code but won't allow me to download
Here use this
https://www.dropbox.com/s/gnft7r6oqnqa4nr/twrp-2.7.1.2-m7wlv.img?dl=0
well for general public knowledge, anybody who's stock rooted and looking for a good custom kernal w/ wake gestures, I flashed Elite Lunar Kernal and it's working FLAWLESS 4 me…
bdizzle1686 said:
well for general public knowledge, anybody who's stock rooted and looking for a good custom kernal w/ wake gestures, I flashed Elite Lunar Kernal and it's working FLAWLESS 4 me…
Click to expand...
Click to collapse
Also give the below kernel a try. It has some more bells and whistles for battery and performance optimization. I don't know if it specifically has gestures, but it does have dt2w s2w s2s in it. I get amazing battery life compared to stock kernel with absolutely no loss in performance. Post #214 that I linked has the 4.4.2 version of the kernel and is up to date with kernel.org version and security/stability fixes. (Just read the OP of the kernel threads to see if they upstreamed the kernel version patches, like that link for 4.4.2 is kernel version 3.4.99)
http://forum.xda-developers.com/showthread.php?p=54997509
Sent from my HTC6500LVW using XDA Free mobile app
If you get bored... And want yet another to try, I did post one in the stock thread a while back, just search that thread for wake gestures.
I'll wind up giving both Kangaroo and Santods a try eventually… Definitely more confident now that I've flashed roms kernals boot splash screens, recovery's, etc…