[Q] What is a kernel? - Nook Color General

I want to OC my NC but i hear i have to have to install a kernel. what exactly is a kernel and how do i install one?

EverythingNook said:
I want to OC my NC but i hear i have to have to install a kernel. what exactly is a kernel and how do i install one?
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Click to collapse
Google works wonders.. .. ..
http://en.wikipedia.org/wiki/Kernel_(computing)
Basically the Kernel is the very heart of the OS. It processes all of the information from the CPU to the hardware, software, and firmware.
You can look in the development section for more information on which kernel to use with your current set up. Not all Kernels are created equally.

Related

[Q] SetCPU Issue

I just used Autonooter 3.0 on my Nook Color. I installed SetCPU but it will not give me the option to overclock it past 800mHz. What gives?
niemer05 said:
I just used Autonooter 3.0 on my Nook Color. I installed SetCPU but it will not give me the option to overclock it past 800mHz. What gives?
Click to expand...
Click to collapse
You need to install an overclock kernel specific to your os. Stock os is Eclair. I like Dalingrin's kernel. Look in the dev forum to find it.
Have you flashed an overclock kernel like screamer or dalingrin's?
No. I tried that. The stock kernel supports only 800 MHz. You need to flash supported kernel to do that.
Search in development threads. i do not have enough posts to put links.
pbcal said:
No. I tried that. The stock kernel supports only 800 MHz. You need to flash supported kernel to do that.
Search in development threads. i do not have enough posts to put links.
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=925451

[Q] I need a little help with upgrading

Hi, i have a samsung galaxy S i9000 and i'm kinda new with it
all i want is to make it faster because it runs very slow , i've seen youtube videos about testing some games on the same phone but some of them won't even open up. i got more interested in upgrading it and started searching around on how to. So here is what i want to do:
I want to upgrade it by changing my Rom in Cyanogen 9 and kernel Devil 3. I don't even know if it is good but i'm sure its better than gingerbread.
Can some1 help me out with it , maybe post a little tutorial how to do it.
Aditional info :
-I don't want so save anything from it
-It's rooted
-Firmware version: 2.3.6
-Kernel version: 2.6.35.7-i9000XXJVU-CL851880 [email protected] #2
TheInfamous. said:
Hi, i have a samsung galaxy S i9000 and i'm kinda new with it
all i want is to make it faster because it runs very slow , i've seen youtube videos about testing some games on the same phone but some of them won't even open up. i got more interested in upgrading it and started searching around on how to. So here is what i want to do:
I want to upgrade it by changing my Rom in Cyanogen 9 and kernel Devil 3. I don't even know if it is good but i'm sure its better than gingerbread.
Can some1 help me out with it , maybe post a little tutorial how to do it.
Aditional info :
-I don't want so save anything from it
-It's rooted
-Firmware version: 2.3.6
-Kernel version: 2.6.35.7-i9000XXJVU-CL851880 [email protected] #2
Click to expand...
Click to collapse
CyanogenMod (CM) 9 is really outdated. If you want a good, fast ROM I can recommend Slimbean. It's largely based on CM. You can find more info here:
http://forum.xda-developers.com/showthread.php?t=2060374
Detailed instructions can be found in that thread and on the slimrom website.
Coming from Gingerbread you'll need to install CM10 first, otherwise you will lose your IMEI, which will render your phone unable to make or place calls. Once on CM10 you can then flash Slimbean.
Or using an newer version of CM
fizzefazze said:
CyanogenMod (CM) 9 is really outdated. If you want a good, fast ROM I can recommend Slimbean. It's largely based on CM. You can find more info here:
http://forum.xda-developers.com/showthread.php?t=2060374
Detailed instructions can be found in that thread and on the slimrom website.
Coming from Gingerbread you'll need to install CM10 first, otherwise you will lose your IMEI, which will render your phone unable to make or place calls. Once on CM10 you can then flash Slimbean.
Click to expand...
Click to collapse
well
fizzefazze said:
CyanogenMod (CM) 9 is really outdated. If you want a good, fast ROM I can recommend Slimbean. It's largely based on CM. You can find more info here:
http://forum.xda-developers.com/showthread.php?t=2060374
Detailed instructions can be found in that thread and on the slimrom website.
Coming from Gingerbread you'll need to install CM10 first, otherwise you will lose your IMEI, which will render your phone unable to make or place calls. Once on CM10 you can then flash Slimbean.
Click to expand...
Click to collapse
is this video good to follow? http://www.youtube.com/watch?v=DizY-TV1QG8
i'm about to follow the whole description in next secs
thank u guys
thanks a lot i just installed cm 10 and it runs smooth as hell .
Perfect when we could help!
So now you can try different Roms or newer versions when you want...
TheInfamous. said:
thanks a lot i just installed cm 10 and it runs smooth as hell .
Click to expand...
Click to collapse
there is something i need to know
freakymod2120 said:
Perfect when we could help!
So now you can try different Roms or newer versions when you want...
Click to expand...
Click to collapse
Like i said in the original post i wanted rom cm9 with devil 3 kernel but still didnt know what that means...( the kernel part)
Now that i got the cm10 ive searched around videos on youtube and seen lot of ppl kinda overclocking it with diferent kernel...
I want to do it like with semaphore or some kernel thing... can someone explain to me how it is done and if it is good for the phone?
Some infos:
Android version: 4.2.2
Baseband vers: I9000xxJVT
Kernel version: 3.0.76-gc0a8d45
Memory: 369 mb
Cm vers: 10.1.2-galaxysmtd
Okay different kernel i have no experience with it ,sorry...
But overclocking is available with the stock-kernel in CM 10 ...to about 1200mhz in the performance menu under your settings ...have you activate developer options and performance...do you know how to do it???
http://wiki.cyanogenmod.org/w/Doc:_developer_options
TheInfamous. said:
Like i said in the original post i wanted rom cm9 with devil 3 kernel but still didnt know what that means...( the kernel part)
Now that i got the cm10 ive searched around videos on youtube and seen lot of ppl kinda overclocking it with diferent kernel...
I want to do it like with semaphore or some kernel thing... can someone explain to me how it is done and if it is good for the phone?
Some infos:
Android version: 4.2.2
Baseband vers: I9000xxJVT
Kernel version: 3.0.76-gc0a8d45
Memory: 369 mb
Cm vers: 10.1.2-galaxysmtd
Click to expand...
Click to collapse
help
freakymod2120 said:
Okay different kernel i have no experience with it ,sorry...
But overclocking is available with the stock-kernel in CM 10 ...to about 1200mhz in the performance menu under your settings ...have you activate developer options and performance...do you know how to do it???
Click to expand...
Click to collapse
i just overclocked it to 1200mhz and zram to 18(default) and now everytime i boot it , it just freez and shuts down.... what can i do now?
TheInfamous. said:
i just overclocked it to 1200mhz and zram to 18(default) and now everytime i boot it , it just freez and shuts down.... what can i do now?
Click to expand...
Click to collapse
Your clock isnt stable go download semaphore kernel or devil kernel and flash it in recovery and try then over clocking with their kernel managers.
Sent from my GT-I9000 using xda app-developers app
well
darkknigh_t said:
Your clock isnt stable go download semaphore kernel or devil kernel and flash it in recovery and try then over clocking with their kernel managers.
Sent from my GT-I9000 using xda app-developers app
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Click to collapse
well i just got it back at default no shut downs
some Qs
sorry
TheInfamous. said:
well i just got it back at default no shut downs
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Click to collapse
Thats good so now if you want to speed up your phone and overclock it download semaphore or devil kernel and flash in recovery
Some Qs
darkknigh_t said:
Thats good so now if you want to speed up your phone and overclock it download semaphore or devil kernel and flash in recovery
Click to expand...
Click to collapse
Some Qs:
Do i flash semaphore kernel same way i installed ROM?
Will semaphore replace current ROM (cm10)??
Did some1 had any problems with semaphore kernel ? like bricking the phone? is it stable?
Is anyone at the current time having cm10 with smaphore kernel overclocking at 1.2ghz ?
Does Sgs i9k support the overclock stable?
TheInfamous. said:
Some Qs:
Do i flash semaphore kernel same way i installed ROM?
Will semaphore replace current ROM (cm10)??
Did some1 had any problems with semaphore kernel ? like bricking the phone? is it stable?
Is anyone at the current time having cm10 with smaphore kernel overclocking at 1.2ghz ?
Does Sgs i9k support the overclock stable?
Click to expand...
Click to collapse
You flash semaphore the same way you flashed your rom and it will replace stock cm kernel your rom will stay the same make sure you flash the right version to avoid any bricking. It makes cm run better. Overclock depends on your phone some people can overclock high some not so much. Download semaphore changer governor to sio and liveoc to 110% and set min frequenci 400Mhz. That should be enough to make it supper smooth
Sent from my GT-I9000 using xda app-developers app
---------- Post added at 12:54 AM ---------- Previous post was at 12:51 AM ----------
darkknigh_t said:
You flash semaphore the same way you flashed your rom and it will replace stock cm kernel your rom will stay the same make sure you flash the right version to avoid any bricking. It makes cm run better. Overclock depends on your phone some people can overclock high some not so much. Download semaphore changer governor to sio and liveoc to 110% and set min frequenci 400Mhz. That should be enough to make it supper smooth
EDIT: make sure after flashing to download semaphore manager from the playstore its like a control panel for semaphore where all the settings are and i repeat make sure you flash the right version for your android version and phone i9000.
Sent from my GT-I9000 using xda app-developers app
Click to expand...
Click to collapse
Sent from my GT-I9000 using xda app-developers app
darkknigh_t said:
You flash semaphore the same way you flashed your rom and it will replace stock cm kernel your rom will stay the same make sure you flash the right version to avoid any bricking. It makes cm run better. Overclock depends on your phone some people can overclock high some not so much. Download semaphore changer governor to sio and liveoc to 110% and set min frequenci 400Mhz. That should be enough to make it supper smooth
Sent from my GT-I9000 using xda app-developers app
---------- Post added at 12:54 AM ---------- Previous post was at 12:51 AM ----------
Sent from my GT-I9000 using xda app-developers app
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Click to collapse
Just making sure i won't brick it...
http://forum.xda-developers.com/showthread.php?t=1786220
i got 4.2.2 that means i can use the 3.0.0 semaphore version? right?
I'm asking again did anyone else did this to their Sgs i9000 with cm10 rom?
And it's 10.1.2 galaxysmtd
TheInfamous. said:
Just making sure i won't brick it... i got 4.2.2 that means i can use the 3.0.0 semaphore version? right? I'm asking again did anyone else did this to their Sgs i9000 with cm10 rom? And it's 10.1.2 galaxysmtd
Click to expand...
Click to collapse
I don't get it why do you want to flash another kernel? Aren't you happy now with smooth CM10.1x? Here on this forum are many flashing freaks who flash and overclock their phones until the device completely crashes.
CM10.1x is excellent already way it is, if you want to even improve it (first of all to get about double battery life) just upgrade it to the newest nightly version of CM10.2 tomorrow (build 20130828), it will finally have all bigger bugs fixed. Very soon, stable CM.10.2 build will be released out of this nightly. This is the thread:
http://forum.xda-developers.com/showthread.php?t=2385178
If you want to do it, just mind that the developer (pawitp) doesn't mention anymore installing gapps, so this would be the workflow from your present ROM:
Do a Nandroid Backup of your CM10.1.2 build before the upgrade!
Go to CWM recovery mode and check first in "install zip" if your zips of the CM10.2 and Gapps for 4.3 are visible on your internal SD card
Wipe data/factory reset
wipe cache
wipe dalvik cache (under "advanced")
Install the nightly ROM zip from internal sdcard using ClockworkMod Recovery
Install Gapps for CM10.2 (Android version 4.3) while still in recovery
Restore /data from Nandroid Backup (the update will wipe your /data) while still in recovery
Reboot system
The partition layout of CM10.2 (beginning from 20130816 nightly) differs of that of CM10/CM10.1. The first install will wipe your /data to switch to the new layout, but after that you may use CWM to restore/backup data of CM10/10.1/10.2 (in CWM recovery under "advanced restore" then "restore data" from your CM10.1 nandroid backup)
This way done, you should have all data, wallpaper, widgets and apps like in your CM10.1 right after the reboot. And wait until tomorrow, when the 20130828 nightly gets released. I've been using "buggy" builds (nightlies between 24 and 27 Aug) without any problems, but some people had problems with them.

how to overclock the Cappy

our cappy is fast as it is on 4.2 but i have yet to overclock a phone yet and i hear its not like taking the risk of OC your computer so i would like to try it out on the cappy first. so i have googled this already and it comes up with somone already OC it to 1.2 ghz which i would be fine with but in order to OC you need to flash a kernal i think it said? i am not fimilular with kernals with all of the phones i have messed with i have yet to touch kernals, the only time i have flashed a kernal (had a interesting custom recovery) was to root my cappy to put CM on it and got CWM after. i dont see the points of them other than more customization which im not interested in, so how would i go about doing this can someone help me out please?
Trozzul said:
our cappy is fast as it is on 4.2 but i have yet to overclock a phone yet and i hear its not like taking the risk of OC your computer so i would like to try it out on the cappy first. so i have googled this already and it comes up with somone already OC it to 1.2 ghz which i would be fine with but in order to OC you need to flash a kernal i think it said? i am not fimilular with kernals with all of the phones i have messed with i have yet to touch kernals, the only time i have flashed a kernal (had a interesting custom recovery) was to root my cappy to put CM on it and got CWM after. i dont see the points of them other than more customization which im not interested in, so how would i go about doing this can someone help me out please?
Click to expand...
Click to collapse
You do indeed need a custom kernel that allows it. Flashing them is fairly simple, you just need a Odin flashable version if you don't wanna go the custom ROM way.
Make sure that your kernel is made for the current version your phone is running and that it's for the I897! As per your signature, Corn kernel would be your best option as it is for GB.
BWolf56 said:
You do indeed need a custom kernel that allows it. Flashing them is fairly simple, you just need a Odin flashable version if you don't wanna go the custom ROM way.
Make sure that your kernel is made for the current version your phone is running and that it's for the I897! As per your signature, Corn kernel would be your best option as it is for GB.
Click to expand...
Click to collapse
as of last night i flashed Cyangenmod to get CWM and then flashed paranoid android 3.99, mines a I896 btw i think since i got a bootloop its on At&t/firmware. (only useing on wifi for now) i had corn kernel before to get a recovery and root but if i want to OC it would i have to get corn kernel again? it was a pretty slow boot up every time i turned it on with the stock rom.
No you don't have nor want to. Corn is for GB, if you flashed CM, you're probably on JB.
You'll just have to flash a JB kernel that allows OC (like devil).
Sent from my SGH-I747 using xda app-developers app
BWolf56 said:
No you don't have nor want to. Corn is for GB, if you flashed CM, you're probably on JB.
You'll just have to flash a JB kernel that allows OC (like devil).
Sent from my SGH-I747 using xda app-developers app
Click to expand...
Click to collapse
is it this http://forum.xda-developers.com/showthread.php?t=1642460 ?
Buddy, read carefully what kernels are compatible with what ROMs and what Android versions.
The information you need is already available here on XDA in Captivate Android Development section.
Val D. said:
Buddy, read carefully what kernels are compatible with what ROMs and what Android versions.
The information you need is already available here on XDA in Captivate Android Development section.
Click to expand...
Click to collapse
so i was looking through some of my stuff on my cappy (cyangenmod 10.1.3 on it) and i looked at the performance option and it has the option to overclock it to 1.2 GHz, would i have to flash a special kernel? or am i fine like this?
Default CM kernel supports 1.2GHz step overclock, just set it and test for stability issues. Nothing else is needed.
overclock t211
hi im sorry to butt in here. Please help. Where can I read the instruction for overclocking galaxy tab 3 t211. I have my device rooted, with twrp, with infamous rom, I have the kernel zio but have not flashed yet. I tried but it replaces the apps im not sure maybe im just ignorant, I restore the back up rom and im not sure if the kernel is still here. Im new to this please help me I just want to get rid of this sooo lag in my phone. I dont know what to do. ThaNk you so much
xdaweird said:
hi im sorry to butt in here. Please help. Where can I read the instruction for overclocking galaxy tab 3 t211. I have my device rooted, with twrp, with infamous rom, I have the kernel zio but have not flashed yet. I tried but it replaces the apps im not sure maybe im just ignorant, I restore the back up rom and im not sure if the kernel is still here. Im new to this please help me I just want to get rid of this sooo lag in my phone. I dont know what to do. ThaNk you so much
Click to expand...
Click to collapse
first of all the t211 is a tablet not a phone . you have a dual core clocked at 1.2ghz im sure thats pretty fast i think its because you have too many apps. if you still want to overclock ask at the q&a section of its offical forums here http://forum.xda-developers.com/galaxy-tab-3 . cyanogenmod sometimes have the option to overclock their devices, i would check that out as well
xdaweird said:
hi im sorry to butt in here. Please help. Where can I read the instruction for overclocking galaxy tab 3 t211. I have my device rooted, with twrp, with infamous rom, I have the kernel zio but have not flashed yet. I tried but it replaces the apps im not sure maybe im just ignorant, I restore the back up rom and im not sure if the kernel is still here. Im new to this please help me I just want to get rid of this sooo lag in my phone. I dont know what to do. ThaNk you so much
Click to expand...
Click to collapse
OC is a kernel option so simply flash a kernel that allows it. That being said, you're not on the right sub-forum like Trozzul mentioned. Be sure to flash one for your tablet. OC has its disadvantages so make sure you read about it before going through with it.

[Q] Need latest devil kernel for my captivate

Hi,
I was just checking if there is a latest version of devil kernel or just let me know which one was the last release with a download link if possible.
However, i am really new with such stuff . I am currently using CM 11 based AVATAR rom with CWM 6 recovery . my Phone has been really sloppy these days and came to know that Devil kernel will overclock the the processor and will have more ram . currently i am using "speedmod kernel "
from here http://forum.xda-developers.com/showthread.php?t=1350266
Will appreciate if you share a link for walk through .
Thanks
byazid said:
Hi,
I was just checking if there is a latest version of devil kernel or just let me know which one was the last release with a download link if possible.
However, i am really new with such stuff . I am currently using CM 11 based AVATAR rom with CWM 6 recovery . my Phone has been really sloppy these days and came to know that Devil kernel will overclock the the processor and will have more ram . currently i am using "speedmod kernel "
from here http://forum.xda-developers.com/showthread.php?t=1350266
Will appreciate if you share a link for walk through .
Thanks
Click to expand...
Click to collapse
Actually, you are using the CM kernel. Speedmod gets overwritten when flashing CM (also, speedmod only runs on 2.2 based ROM).
Now that being said, Devil kernel does allow you to overclock (OC) but it is not recommended. If you phone feels sloppy, chances are that it's cause of something else (too many apps/widgets, low internal memory, etc.).
Devil has their own thread: http://forum.xda-developers.com/showthread.php?t=2135091 ; Easily found with a little search
BWolf56 said:
Actually, you are using the CM kernel. Speedmod gets overwritten when flashing CM (also, speedmod only runs on 2.2 based ROM).
Now that being said, Devil kernel does allow you to overclock (OC) but it is not recommended. If you phone feels sloppy, chances are that it's cause of something else (too many apps/widgets, low internal memory, etc.).
Devil has their own thread: http://forum.xda-developers.com/showthread.php?t=2135091 ; Easily found with a little search
Click to expand...
Click to collapse
Thanks Buddy

Stock ROM OverClock How to?

Hi guys!
Stock ROM OverClock How to?
If you want to stay on stock rom you can install CroPol Kernel to OC CPU up to 1.2 GHz and the GPU up to 729MHz (stock is 400). But keep in mind that your WiFi won't work on Stock.
OC is only possible if the kernel supports it - and stock kernel doesn´t.
CyanogenMod charge eats too much. So I had to use the Stock ROM. Rootl already. I picked up the absurd application of the Samsung phone but still does not work fast. OC Kernel does not work on stock ROM kernel. OC kernel have installed the WiFi does not work. What can I do to speed up the phone?
I'm using Google translation. I hope you understand what I said.
Berkant Ayhan Karabudak said:
CyanogenMod charge eats too much. So I had to use the Stock ROM. Rootl already. I picked up the absurd application of the Samsung phone but still does not work fast. OC Kernel does not work on stock ROM kernel. OC kernel have installed the WiFi does not work. What can I do to speed up the phone?
I'm using Google translation. I hope you understand what I said.
Click to expand...
Click to collapse
install this amazing rooted stock ROM, after that
a) flash CrossBreeder 7.2.13 and
b) install Performance Control
This 3 things will make your device fly ...
moonryder said:
install this amazing rooted stock ROM, after that
a) flash CrossBreeder 7.2.13 and
b) install Performance Control
This 3 things will make your device fly ...
Click to expand...
Click to collapse
Thank you. Phone officially took flight. :good:

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