I'm trying to get a kernel config file '.config' from an existing kernel....
Besides
Code:
cat /proc/config.gz
and the script.
Code:
extract-ikconfig
is there any other way to get the configuration of a kernel?
(e.g: If an OEM leaves '.config' out of their kernel source.)
Thanks!
I only ask because the config.gz doesn't exist on the device, and extract-ikconfig says
Code:
extract-ikconfig: cannot find kernel config
Which I googled and some results said that it could be because of the compression method, but I even used the 'patched' version from the later 2.6.X kernels. So I doubt its the compression method used in the kernel.
+1
I have this problem with the kernels shipped by my manufacturer. Is there a repository anywhere of known good configs that can be used for reference?
Hi guys,
I'd like to tinker around a bit with the tiamat or other kernels for the Xoom
are the following steps enough to get it working ?
- clone the repo
- adjust toolchain paths (or create an external script that does it)
- make stingray_defconfig
- make -j2
- test-boot the zImage via fastboot
- if it's successful copy over the kernel-modules & flash the kernel via fastboot
how about an initramfs ?
have I forgotten anything ?
Many thanks in advance for your help !
edit:
slowly understanding how all this works,
still might need some help
I think that will get you started. I'm not an expert, but when I'm tinkering with kernels I pull the proc config strait from the device after flashing the kernel I want to modify. That way I know that the default config is correct. For example, if I wanted to modify the kernel running on an EOS nightly, after cloning the repo I would flash the EOS nightly ROM containing the kernel I want to modify. Then run the following commands to pull the kernel config from the kernel running on my device:
Code:
adb pull /proc/config.gz .
gunzip config.gz
mv config .config
The .config then goes in the root of the kernel source directory. That may do exactly the same thing as the "make defconfig" you mentioned but I just prefer to trust the defaults from the ROM and not the repo.
1) download source code from https://opensource.samsung.com/index.jsp. You are looking for source code for SGH-T839.
2) Get initramfs (Need to make a kernel package)
Extract it using extract boot http://www.mediafire.com/?lc12eceeh617b97.
This is why I am looking for a boot.img
extract it
Code:
tar -xvf extractboot.tar.gz
now move into directory with extract boot and copy your boot.img into here and do
Code:
./extractboot boot.img
3) Get mkboot tools
http://www.mediafire.com/?w06d1m6n1dgo4op
untar it by doing
Code:
tar -xvf $FILENAMEHERE
Add the bin directory to your path by moving to the bin directory and copying down the path then
Now you will add this to your path by editing your .bashrc file.
Go to your bashrc file
Code:
gedit ~/.bashrc
and adding this
Code:
PATH=$PATH:/FULLDIRECTORYYOUWROTEDOWN/
export PATH
4) Download the ARM toolchain
https://sourcery.mentor.com/sgpp/lite/arm/portal/package5385/public/arm-none-linux-gnueabi/arm-2009q3-67-arm-none-linux-gnueabi.bin
and
https://sourcery.mentor.com/sgpp/lite/arm/portal/package5355/public/arm-none-eabi/arm-2009q3-68-arm-none-eabi.bin
5) Install the ARM Toolchain
create the directory /opt/toolchains/arm-2009q3/
Code:
sudo mkdir /opt/toolchains/arm-2009q3/
then install the toolchain using /opt/toolchains/arm-2009q3/
as the install directory
Code:
sudo chmod +x arm-2009q3-68-arm-none-eabi.bin
sudo chmod +x arm-2009q3-67-arm-none-linux-gnueabi.bin
sudo ./arm-2009q3-67-arm-none-linux-gnueabi.bin -i console
sudo ./arm-2009q3-68-arm-none-eabi.bin -i console
6) Compile
Extract your source code and go to the directory Kernel and do the following
WARNING: MAKE SURE THERE ARE NO SPACES IN YOUR FILEPATH BECAUSE THE MAKEFILE DOESNT LIKE THEM.
Code:
make clean
make arch=arm sidekick_rev02_defconfig
make ARCH=arm HOSTCFLAGS="-g -O3" -j8 CROSS_COMPILE=/opt/toolchain/bin/arm-none-eabi-
Now copy any of the resulting compiled ko files into the initramfs file you have extracted and you should have what you need to package a kernel.
you forget initramfs
windxixi said:
you forget initramfs
Click to expand...
Click to collapse
yeah I kept it out so that somebody would post a boot.img then could do steps related to that. I am looking for a boot.img to get initramfs from
unpack zImage
Sent from my SGH-T839 using XDA
---------- Post added at 08:46 AM ---------- Previous post was at 07:49 AM ----------
and how to pack a boot.img?
A request to anyone building SK4G kernels.
Please disable the keystroke logging printk statements in the file:
Code:
drivers/input/keyboard/s3c-keypad.c
The lines look like this:
Code:
//printk("\nkey Pressed : key %d map %d\n",i, pdata->keycodes[i]);
and
Code:
//printk("\nkey Released : %d map %d\n",i,pdata->keycodes[i]);
It is possible to recover the actual keystrokes from the numerical codes those statements log, and the messages go into the dmesg buffer. So it's pretty easy to extract them and determine exactly what the user typed.
In the latest Samsung sources I've seen, those lines were already commented out. It makes sense to enable them while debugging a new ROM build, but please do disable them prior to building a kernel intended for general consumption.
Do you guys know if the available source code will produce a kernel that will work with kj2? the kernel version in SGH-T839_Opensource_Update1 looks to match up, but I compilied a zImage and it didn't boot on stock kj2. but I could very well be missing something.
I have done a small amount of kernel work on an HTC device, but I basically just used the Rom Kitchen to pack up my zImages with a boot.img-ramdisk to create a boot.img. I guess I might need a little more instruction for packing up a Samsung kernel. Is it also an option to just tar up the zImage and flash it with Odin/Heindall?
Thanks for this thread, and for any other advice!
Sent from my SGH-T839 using Tapatalk 2
In case it might be useful to someone else working on building a kernel.
The official and Bali_SK4G sources both seem to insist on building with debug symbols enabled for some of the modules. In particular, i was ending up with dhd.ko being 2.4 MB in size, where it should have been less than 400 KB.
The ideal case would be to determine why the debug symbols are being included -- commenting out the labelled debug options in the bcm4329 Makefile didn't accomplish this.
But a workaround is to strip the modules after the build is finished, before assembling the initramfs.
Has anyone been able to build a working zImage for KJ2 using Dr. Honk's Bali sources [1] and sduvick's KJ2 ramdisk files [2]?
I have been able to build a zImage of a reasonable size (6520 KB). But when I flash this to the KERNEL partition using heimdall, the device boot loops to the B&W Sidekick logo. It doesn't get far enough to show any adb log output.
I can then use the same heimdall flashing procedure to flash the Platypus Egg v1 zImage, or other KJ2-compatible zImage files, and the device boots and works properly.
So I'm trying to figure out what I'm doing wrong in building my zImage. If anyone has any advice I would be appreciative.
[1] https://github.com/drhonk/Bali_SK4G
[2] https://github.com/sduvick/SK4g_KJ2_Ramdisk
I got an updated Bali_SK4G kernel booting using the ramdisk from GenericGinger 2.0.
I have worked up some patches to disable the logging of keystrokes and other more trivial debug spew in dmesg. Also included is a Makefile patch that was required for the compile to complete with my toolchain.
https://carbon.flatlan.net/nxd/patches_Bali_SK4G_nxd.tar.bz2
md5sum: 5d14ac32de155cdca0fd82f14bc4ceca
These patches are GPL licensed, in compliance with the license for the Linux kernel itself. I make no guarantees about their suitability for any purpose. I grant permission to use them to anyone who would like to do so, so long as they comply with the GPL.
I'd like to make a compiled kernel available with these changes, but XDA's rules can be interpreted to mean that I must obtain permission from a series of upstream contributors, some of whom may not be reachable. Perhaps a moderator will clarify the parameters of the permission rule.
This thread aims to be a comprehensive guide to building and packaging kernels for US Variant Samsung Galaxy SIIIs
In my opinion, a kernel is a great way to get into building things for your device and its pretty easy to do too.
Intro
What is a kernel?
http://en.wikipedia.org/wiki/Kernel_(computing)
This guide is for US SGSIII's (d2att,d2cri,d2mtr,d2spr,d2tmo,d2usc,d2vzw,others?)
It may be possible to adapt this to other devices, but I am not responsible for anything that happens should you try to do this.
This guide assumes you have a general knowledge of the Linux operating system. If you've never used it, you might consider playing around
with it for awhile before attempting this guide.
Click to expand...
Click to collapse
Prerequisites
On all devices you must be rooted, on Verizon SGS3 (d2vzw) you must also have the unlocked (VRALE6) bootloader installed.
This is not the thread for figuring out how to do this. You can use the forum's search function to figure out how to do this on your device.
You'll need a computer or a virtual machine running ubuntu. You may be able to figure out how to get this working on other distributions,
but since ubuntu is generally the most accepted distribution to use for building android things, I'll stick to using that here.
At the time of this writing, I'm using ubuntu 12.10, 64-bit.
You'll need to install some packages on your ubuntu machine:
Code:
sudo apt-get install build-essential git zip unzip
On 64-bit you'll also need some multilib and 32-bit compatibility packages:
Code:
sudo apt-get install gcc-multilib g++-multilib lib32z1-dev
Click to expand...
Click to collapse
Setting up the Build Environment
Next, you'll need a toolchain which is used to actually build the kernel. You may download one of these:
GCC 4.4.3: Download || Mirror
GCC 4.6: Download || Mirror
GCC 4.7: Download || Mirror
If you aren't sure, go for 4.4.3 or 4.6.
4.7 requires some code changes to work. The original kernel developer may or may not have made these changes.
Here is what I needed to do in order for 4.7 to build, boot and have wifi work:
https://github.com/invisiblek/linux-msm-d2/commit/f8d7199d37cfbfa1bcb6b4bcae3fc15ae71fbdea
https://github.com/invisiblek/linux-msm-d2/commit/ea58076501e5874db7b934c215c4dae81ddfd0a6
The toolchains are also available in the android NDK.
*** There are many toolchains out there, some of you may know of the Linaro toolchain which is aimed to optimize your binary even further ***
*** If you choose to use a different toolchain, that is fine. Keep in mind that you may run into issues depending on the toolchain you use ***
You can check what your currently running kernel was built with by issuing these commands:
Code:
adb root
adb shell cat /proc/version
It should return something like:
Linux version 3.4.0-cyanogenmod-gc4f332c-00230-g93fb4aa-dirty ([email protected]) (gcc version 4.7 (GCC) ) #134 SMP PREEMPT Thu Feb 28 00:22:41 CST 2013
Click to expand...
Click to collapse
This shows my particular kernel here was built with GCC 4.7
You can use wget to download one of the links from above, in this instance we'll download version 4.4.3 from the first link:
Code:
wget http://invisiblek.org/arm-eabi-4.4.3.tar.bz2
Extract this to somewhere you will remember, probably your home directory.
Code:
mkdir arm-eabi-4.4.3
tar -xf arm-eabi-4.4.3.tar.bz2 -C arm-eabi-4.4.3/
Click to expand...
Click to collapse
Obtaining Source
Find someone's source to use as a base. This can be a source archive from Samsung, a kernel tree from CyanogenMod, or any other developer around that makes kernels for your device.
TIMEOUT
This is a good spot to stop and take note that the Linux kernel is licensed under the GNU General Public License (GPL): http://www.gnu.org/licenses/gpl-2.0.html
What does this mean you ask? It means that if you plan to share your kernel with the community (if it's good, please do so!) then you MUST share your
source code as well. I am not liable for what you choose to do once you start building kernels, but know this: if you share your kernel and do not
provide source code for it, you will get warnings from XDA for a determined amount of time, after that you may have your threads closed, deleted and
possibly your user account terminated. This is extremely important!
Also, you may run into more problems than just XDA. There are organizations out there that do take action if you consistently refuse to comply with the GPL.
I recommend you read this: http://www.gnu.org/licenses/gpl-2.0.html so that you are familiar with what legalities you are getting yourself into.
The main thing to remember is to share your source code if you decide to share your built kernel.
Click to expand...
Click to collapse
In this instance, we will use CyanogenMod's kernel source for the US Galaxy S3's. You may browse the source code here:
https://github.com/CyanogenMod/android_kernel_samsung_d2
You'll notice that the branch there is cm-10.1
This is the default branch of this repository on github. This means that if you intend to build this branch, you'll need to use it on CM version 10.1. Most
likely it will not function on another version.
To obtain the source code:
Code:
git clone https://github.com/CyanogenMod/android_kernel_samsung_d2
This will take a little while, be patient.
When done, you'll have a directory called android_kernel_samsung_d2, cd into this directory.
Code:
cd android_kernel_samsung_d2
Next, you'll need to set up a couple environment variables. These tell the system two things:
1. What CPU architecture to build for, in this case arm
2. Where to find the toolchain we downloaded earlier, so that the system can cross compile for arm
Code:
export ARCH=arm
export CROSS_COMPILE=~/arm-eabi-4.4.3/bin/arm-eabi-
You'll need to set these variables on each new session. You can modify your Makefile in the root of your kernel tree in order to have these set permanently.
Click to expand...
Click to collapse
Building
At this point you can make any changes to the source code that you want. If this is your first time, I recommend not making any changes and make sure you have a
sane build environment before adding any complications.
When you build a kernel, you need to choose a defconfig. This is a specialized configuration file, specifically tailored for your device.
CyanogenMod names their defconfigs for their devices like so: cyanogen_<device>_defconfig and they are located in arch/arm/configs/
Code:
ls arch/arm/configs/cyanogen*
In this example, we will build for d2vzw.
Set up your tree to build for the d2vzw:
Code:
make cyanogen_d2vzw_defconfig
(do this in your kernel's root directory, in this example it was android_kernel_samsung_d2/ )
Now you are ready to build:
First, determine how many cpu's your computer has. You'll use this number to determine how many jobs the compiler command will use. The more jobs you can use, the more
cpu threads the compile will take advantage of, thus you'll get faster builds. If you don't know, just assume you'll use the number 2. We'll use 2 as an example here.
Code:
make -j2
Where 2 is the number of CPU cores your build system has.
And now we wait...until it's done compiling...
You'll know it successfully compiled when you have this line when it stops:
Kernel: arch/arm/boot/zImage is ready
Click to expand...
Click to collapse
PROTIP:
If it stops somewhere other than "zImage is ready" then you had build errors. Try running the 'make' command with no options after it. This will run the compile on a single thread
and will cause it to stop compiling as soon as it hits an error. When you run it on multiple threads, it definitely goes much faster, but if an error occurs, the console doesn't stop
until it finishes all of its threads. Causing you to have to scroll up and search around for an error
Click to expand...
Click to collapse
Now, assuming the build completed successfully, you have two things you are concerned with: A zImage (the kernel binary itself) and your kernel modules, which get built based
on what was configured in your defconfig.
You'll find your zImage at: arch/arm/boot/zImage
Code:
ls arch/arm/boot/zImage
The modules are scattered all over the place, depending on where the source existed that they were compiled from. We can easily search for them using this command:
Code:
find . -name "*.ko"
If both of the previous commands completed, you are now ready to package your kernel up for testing.
Move up a directory before continuing.
Code:
cd ..
Click to expand...
Click to collapse
Packaging
You may know of an awesome developer by the name of koush.
Well, once upon a time, koush created a rather simple zip, called AnyKernel, that would flash a kernel on a device, regardless of what ramdisk the kernel has on it.
I've taken his zip and modified it for d2 devices and to work with the newer recoveries out there.
This has a script in it that will dump your current boot.img (kernel+ramdisk), unpack it, replace the kernel, repack it and flash it.
It'll also copy any modules to the proper directory (/system/lib/modules) and set permissions appropriately.
You can get a zip here: Download || Mirror
(You can get it here as well: https://github.com/invisiblek/AnyKernel )
(Everyone is invited to use this zip, it'll probably make your life easier to not have to worry about the ramdisk. Enjoy!)
IMPORTANT
This AnyKernel package is for US variations of the Galaxy S3.
NOT the international (I9300) or any other device.
There are checks in the updater-script that will ensure you are running a d2 device before it does anything.
If you were to remove these checks, and not modify the partition that it flashes to later, you could end up with a brick.
If you intend to adapt this package for another device (please, do this! its a very handy script!), make sure you know it well, or ask someone to help you determine your device's
partition scheme before using it.
The risk here is due to the fact that the script doesn't know your device's partition scheme. It is configured specifically for the d2 devices. Flashing it on something else, who's boot
partition is somewhere else, might cause a bad flash to the bootloader partition (bad bad news if this happens).
Just be careful if you want to use this on another device. You won't run into problems if you use this on a d2 device.
EDIT: I made modifications that should make this less likely, but please, if you intend to use this on a different device (which is completely fine!) make sure you configure
the scripts to flash to the proper partitions.
Click to expand...
Click to collapse
Download and extract one of the above, we'll again use the first link for this example:
Code:
wget http://invisiblek.org/AnyKernel_samsung-d2.zip
unzip AnyKernel_samsung-d2.zip -d AnyKernel/
Now we'll copy our newly compiled zImage (still referring to the same kernel directory we used above, your repo might be called something different)
Code:
cp android_kernel_samsung_d2/arch/arm/boot/zImage AnyKernel/kernel/
cp `find android_kernel_samsung_d2 -name "*.ko"` AnyKernel/modules/
Finally we are ready to zip this up and test out flashing it.
Code:
cd AnyKernel
zip ../MyAwesomeKernel.zip -r *
cd ..
You'll now have a file named MyAwesomeKernel.zip which you should be able to flash via custom recovery (TWRP or CWM)
Click to expand...
Click to collapse
Extra Credit/Protips
Learn to use git. It's very powerful and great way to store your code.
Learn to use adb. It's an invaluable tool for any android developer.
Touchwiz and AOSP-based kernels are different. This means you cannot take CyanogenMod's source, build a kernel and expect it to work on a Touchwiz-based ROM.
Build a ROM next: http://wiki.cyanogenmod.org/w/Build_for_d2vzw
Crackflash your own stuff!
ALWAYS NANDROID!
Click to expand...
Click to collapse
Source code for all of my projects can be found here: http://github.com/invisiblek
FAQ
Q: How do I update my source tree to the latest that is available from where I downloaded it?
A: This can be handy if, for instance, you are building a CyanogenMod kernel and they added some patches, after you downloaded the source, that you want to include in your next build. You'll want to cd to your kernel tree and issue a git pull:
Code:
cd android_kernel_samsung_d2
git pull
You may then continue with the building instructions.
This may, however, have other problems if you've made changes to files. You might run into conflicts. I won't cover fixing any of this here, its not in the scope of this thread.
Q: I'm using X as a kernel base, but Y has a patch that I really like. How do I get it in my kernel easily?
A: I'll let you check Google for this answer, but I'll give you a hint use: git cherry-pick
Nice tutorial bro! Always good to learn something new everyday
Really is a good thread，thanks
This guide would have made things too easy for me.
Too easy, indeed. haha
Great job, invisiblek! AnyKernel is the beez neez.
Ok so this is a noob question but I gotta ask anyway lol. Ok so I cloned the kernel source, I made my edits, now how do I push all this to my github?
I already have a github account, I already made a new repo for the kernel. Here's a link to my github if you need it...
https://github.com/ghicks12/d2vzw_kernel.git
spc_hicks09 said:
Ok so this is a noob question but I gotta ask anyway lol. Ok so I cloned the kernel source, I made my edits, now how do I push all this to my github?
I already have a github account, I already made a new repo for the kernel. Here's a link to my github if you need it...
https://github.com/ghicks12/d2vzw_kernel.git
Click to expand...
Click to collapse
git remote add origin git_location_you_created_on_github.git
git push -u origin somebranch
The -u is for first time run only, you can just git push afterwards.
Sent from my SCH-I535
GideonX said:
git remote add origin git_location_you_created_on_github.git
git push -u origin somebranch
The -u is for first time run only, you can just git push afterwards.
Sent from my SCH-I535
Click to expand...
Click to collapse
Thanks! When I run
Code:
git remote add origin https://github.com/ghicks12/d2vzw_kernel.git
I get this back:
Code:
fatal: remote origin already exists.
I'm editing a CM based kernel, not sure if that matters or not?
That just means you added the remote already. Just issue the push command then.
Sent from my SCH-I535
Why is this happening? I don't know what i did wrong
[email protected]:~/cm$ make VARIANT_DEFCONFIG=cyanogen_d2att_defconfig
scripts/kconfig/conf --silentoldconfig Kconfig
drivers/media/video/msm/Kconfig:123:warning: choice value used outside its choice group
drivers/media/video/msm/Kconfig:128:warning: choice value used outside its choice group
***
*** Configuration file ".config" not found!
***
*** Please run some configurator (e.g. "make oldconfig" or
*** "make menuconfig" or "make xconfig").
***
make[2]: *** [silentoldconfig] Error 1
make[1]: *** [silentoldconfig] Error 2
make: *** No rule to make target `include/config/auto.conf', needed by `include/config/kernel.release'. Stop.
[email protected]:~/cm$
Hey. I'm having some problems with some GIT terminology and procedures. I'm a .NET developer and I use TFS and SVN on a daily basis. Forgive me if this is complete off basis from what you'd do with GIT.
What I want to do is merge one branch into another branch. In other words I want to take the latest kernel source from my favorite dev and merge in the latest from cyanogen's 4.3 d2 branch. Is this a rebase thing? It doesn't seem like cherrypicking to me.
I have successfully compiled kernel and made modules.I inserted zImage and modules inside any kernel updater,flashed via TWRP.When reboot stuck in odin and it says could not do normal boot.
This is a general open source linux development thread!
Android's kernel is a derivative of linux's kernel. Its good to know how to build both of these kernels. You might be already familiar with building kernels for various devices from sources. So I have made a new thread for guiding people on how to compile linux kernel from source (example taken as ubuntu kernel).
Requirements:
Any linux os x64 bit(example here: ubuntu 14.04)
Git (sudo apt-get install git)
Minimum of 4GB RAM and some reasonable linux-swap
To get the currently running kernel image, type the following:
Code:
apt-get source linux-image-$(uname -r)
Now we need to obtain Ubuntu Kernel Sources from its repositories. Make a new directory and inside it, initialise the git and clone the repository.
Code:
git clone git://kernel.ubuntu.com/ubuntu/ubuntu-<release>.git
<release> : Type in the required source. It can be lucid, precise, trusty, utopic etc.
Setting up the build environment. There are lots of tools and packages that are very much essential for building a kernel. These tools can be downloaded as a whole bundle and can be installed easily. Here's the code to set it up:
Code:
sudo apt-get build-dep linux-image-$(uname -r)
NOTE: The above comand can be executed only after you obtain the currently running kernel image. I have already given the code to obtain it above.
Now, change directory to the root of the kernel and type the following:
Code:
chmod -R a+x *
The above code will set the required permissions for building and executing the kernel.
Now, run these two commands:
Code:
fakeroot debian/rules clean
fakeroot debian/rules editconfigs
The first command cleans up the code automatically.
The slightly tricky part is with the second line of the code. When you execute it, you will have to edit a series of menuconfigs. To make changes to the configuration file we need to edit the configuration file. The kernel developers have created a script to edit kernel configurations which has to be called through the debian/rules makefile, unfortunately you will have to go through all the flavors for this script to work properly. The script will ask you if you want to edit the particular configuration. You should not make changes to any of the configurations until you see your wanted flavour configuration
We have now covered about 70% of progress. The rest is building the kernel and testing it.
Building the kernel is quite easy. Change your working directory to the root of the kernel source tree and then type the following commands:
Code:
fakeroot debian/rules clean
fakeroot debian/rules binary-headers binary-generic
If the build is successful, a set of three .deb binary package files will be produced in the directory above the build root directory. For example after building a kernel with version "3.13.-0.35" on an amd64 system, these three .deb packages would be produced:
Code:
cd ..
ls *.deb
linux-headers-3.13.0-35_3.13.0-35.37_all.deb
linux-headers-3.13.0-35-generic_3.13.0-35.37_amd64.deb
linux-image-3.13.0-35-generic_3.13.0-35.37_amd64.deb
Testing the new kernel
Install the three-package set (on your build system, or on a different target system) with dpkg -i and then reboot:
Code:
sudo dpkg -i linux*3.13.0-35.37*.deb
sudo reboot
Guys, I hope I have made an easy tutorial. You are always welcome to ask doubts (even on PM). Thank You.
Specific Hardware/Architecture
Creating a new config
I’ll be using the method of creating a new flavour, this adds a bit more work but this way you can always compile the original kernels.
We’ll use the generic flavour as the base for our own flavour being i7, this extension needs to be in small caps.
Code:
cp debian.master/config/amd64/config.flavour.generic debian.master/config/amd64/config.flavour.i7
fakeroot debian/rules clean
debian/rules updateconfigs
To make changes to the configuration file we need to edit the configuration file. The kernel developers have created a script to edit kernel configurations which has to be called through the debian/rules makefile, unfortunately you will have to go through all the flavours for this script to work properly.
Code:
debian/rules editconfigs
The script will ask you if you want to edit the particular configuration. You should not make changes to any of the configurations until you see the i7 configuration
Code:
Do you want to edit config: amd64/config.flavour.i7? [Y/n]
Make your changes, save the configuration and then keep going until the script ends.
When you’re done, make a backup of the config flavor file.
Code:
cp debian.master/config/amd64/config.flavour.i7 ../.
Now we need to clean up the git tree in order to get ready for compilation.
Code:
git reset --hard
git clean -df
Getting ready for compilation
Because we are going to be creating a new flavour based on a existing flavour (generic in my case) we need to create some extra files. During compilation the process checks the previous release for some settings, as we’re creating a local flavour it doesn’t exist in the source, so we’re creating it.
To see the previous release we use:
Code:
ls debian.master/abi
cp debian.master/abi/3.0.0-12.20/amd64/generic debian.master/abi/3.0.0-12.20/amd64/i7
cp debian.master/abi/3.0.0-12.20/amd64/generic.modules debian.master/abi/3.0.0-12.20/amd64/i7.modules
Copy our flavored configuration file back.
Code:
cp ../config.flavour.i7 debian.master/config/amd64/
We need to edit some files:
File: debian.master/etc/getabis
Search for the line:
Code:
getall amd64 generic server virtual
Change it in:
Code:
getall amd64 generic server virtual i7
File: debian.master/rules.d/amd64.mk
Search for the line:
Code:
flavours = generic server virtual
Change it in:
Code:
flavours = generic server virtual i7
File: debian.master/control.d/vars.i7
This files does not exist and in order to make the compilation process aware of our own flavor we want to compile we need to create it.
Code:
cp debian.master/control.d/vars.generic debian.master/control.d/vars.i7
You can edit the file and make it your own.
Code:
arch="i386 amd64"
supported="i7 Processor"
target="Geared toward i7 desktop systems."
desc="x86/x86_64"
bootloader="grub-pc | grub-efi-amd64 | grub-efi-ia32 | grub | lilo (>= 19.1)"
provides="kvm-api-4, redhat-cluster-modules, ivtv-modules, ndiswrapper-modules-1.9"
We need to commit our changes in the git repository.
Code:
git add .
git commit -a -m "i7 Modifications"
The text after -m is the message you add to your commit.
Compilation
It’s finally time for compiling, to keep our newly created branch in pristine condition we will do the compilation in a separate branch. We keep our branch clean as this will help later on when we want to update our new branch to a newer kernel.
Code:
git checkout -b work
fakeroot debian/rules clean
All the packages will be created in the directory /d1/development/kernel/ubuntu/oneiric
Create independent packages:
Code:
skipabi=true skipmodule=true fakeroot debian/rules binary-indep
The above statement will create the following deb files:
Code:
linux-doc_3.0.0-13.21_all.deb
linux-headers-3.0.0-13_3.0.0-13.21_all.deb
linux-source-3.0.0_3.0.0-13.21_all.deb
linux-tools-common_3.0.0-13.21_all.deb
Create the tools package:
Code:
skipabi=true skipmodule=true fakeroot debian/rules binary-perarch
The above statement will create the following deb file:
Code:
linux-tools-3.0.0-13_3.0.0-13.21_amd64.deb
Create the flavour depended files:
Code:
skipabi=true skipmodule=true fakeroot debian/rules binary-i7
The above statement will create the following deb files:
Code:
linux-headers-3.0.0-13-i7_3.0.0-13.21_amd64.deb
linux-image-3.0.0-13-i7_3.0.0-13.21_amd64.deb
Installation
After the compilation is finished we’ll have the above packages in the parent directory.
To install the files
Code:
cd ..
sudo dpkg -i linux-headers-3.0.0-13-i7_3.0.0-13.21_amd64.deb linux-headers-3.0.0-13_3.0.0-13.21_all.deb linux-image-3.0.0-13-i7_3.0.0-13.21_amd64.deb
Check your bootloader if the newly installed Ubuntu kernel is the default one, for grub check the file /boot/grub/menu.lst or if you run grub2 check /boot/grub/grub.cfg
thx for your info
nice job mate..!! :good:
now i'm gonna try this..!!
Nice ,i can't say anything
faizauthar12 said:
Nice ,i can't say anything
Click to expand...
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Thank you for the great guide!!!
Nice thread. I'll try it at home
Thanks
Enviado de meu Moto G usando Tapatalk
Thx for the guide
tra_dax