I am working on SGS porting, and when I had phone new, I'd started with compiling original kernel and samsung rom booted with my kernel(I extracted initramfs from orig. zImage and used him for my kernel). I remember that for samsung kernel you need www.codesourcery.com toolchain, when I tryed toolchain from android prebuild dir, kernel crashed. Maybe you can compile whole android for your device + kernel(initramfs you should point to out/target/product/$name/rootdir) and you will see. you can boot your OS from sdcard(ext4 partition), so your orig. samsung rom can be still in your device internal memory, so when device will be stuck, you can still boot into orig. rom by flashing orig. kernel back
On 14 pro, 08:43, "s.rawat" <imsaurabhra...@gmail.com> wrote: > Petter You are correct.I followed the same.But I doubt there will be some > MD5 *checksum *ssociated with it which I dont have any clue. > "same root structure like orig"..hmmm..i could try this as well. > plz if some one who has success in this , do report(in either SGT or SGS ) > > Rgds, > Saurabh > > "..pain is temporary.....quitting lasts forever......" > > > > > > > > On Wed, Dec 14, 2011 at 11:43 AM, petter <havlenap...@gmail.com> wrote: > > I think that your problem is, that samsung uses initramfs in kernel > > image, so theirs modules(and other files) are packed in zImage, so if > > are some of these modules(files) not open, you must extract them from > > orig. kernel, put them into your kernel and pack your kernel with all > > these modules(files). you must make same root structure like orig. > > kernel do, if you want to boot samsung's rom. > > > On Dec 13, 8:43 pm, Tal Alon <tal.alon1...@gmail.com> wrote: > > > Hi > > > I download the source directory of android brunch 2.3.5 and compiled it > > to > > > receive the filesystem. I got an empty filesystem (~150KB) and added > > under > > > /lib/modules/ the new 7 modules from the kernel compilation. > > > The next step was to mkbootfs to recreate the new file system and then > > > mkbootimg from the new kernel and filesystem. The image that i received > > is > > > ~5.3MB and it does not boot on the device. > > > The mkbootfs and mkbootimg i compiled from the android source direcory > > from > > > 2.3.5 brunch. > > > When i download kernel from XDA i get zImage ~6.4MB and i failed to > > extract > > > the filesystem from it (with some tools which i found at making kernel > > > guides), But the downloading to the device success and the device boots > > > well. > > > I tried these process with kernel from samsung open source update 1,2,3 > > > with no success, I used default def_config as mentioned at kernel > > > compilation instructions. > > > I still don't understand what i do wrong, > > > H E L P > > > > Tal > > > > On Tue, Dec 13, 2011 at 1:56 PM, Kiran Kumar Raparthy < > > > > kumarsharma.andr...@gmail.com> wrote: > > > > Hi Tal, > > > > Usually your Bootloader will launch the kernel image in any kind of > > linux > > > > systems. > > > > So you have to create the kernel image to be compatible with > > > > bootloader(Which adds the Header,size and CRC),so that when launching > > the > > > > kernel, bootloader verifies the header,gets the kernel image based on > > the > > > > size and calculates the CRC and verifies,when successful,gives control > > to > > > > kernel. > > > > If your compiling the kernel in android source,it creates the > > filesystem > > > > image too.If not,probably you have to compile the filesystem and > > create the > > > > File system image based on your requirement and burn the same. > > > > > Also the address where you are burning the images in the flash is also > > > > important,as bootloader reads the kernel header from a fixed location > > so > > > > you have to load the kernel at that fixed address only. > > > > > Regards, > > > > Kiran > > > > > On Mon, Dec 12, 2011 at 7:36 PM, Tal Alon <tal.alon1...@gmail.com> > > wrote: > > > > >> Hi all > > > >> I am trying to build kernel for galaxy S2 with no success and i need > > some > > > >> help for it. > > > >> I execute 2 steps first make config (c1_rev02_defconfig) and second > > make. > > > >> My environment includes toolchines that provides with the source tree > > and > > > >> i define the ARCH and CROSS_COMPILE macros before compilation. > > > >> The compilation success and I receive zImage file (3.5MB to 4.6MB) > > > >> depends on kernel version. > > > >> What is the next step? How do i burn the new kernel to device? I > > tried to > > > >> do it with odin but the device stuck. > > > >> What about the new modules of the new kernel compilation? what about > > file > > > >> system? > > > > >> Thanks a lot > > > >> Tal > > > > >> On Tue, Nov 22, 2011 at 9:31 AM, Tal Alon <tal.alon1...@gmail.com> > > wrote: > > > > >>> Hi Bridgette, > > > > >>> I am trying to build kernel for galaxy S2 and for these device i > > didn't > > > >>> find any script to run. The txt file details 2 steps > > > >>> first make config (mine is c1_rev02_defconfig) and second make. > > > >>> My environment includes toolchines that provides with the NDK with no > > > >>> installation but i define the ARCH and CROSS_COMPILE macros before > > > >>> compilation. > > > > >>> On Mon, Nov 21, 2011 at 8:17 PM, Bridgette <tbridge...@yahoo.com> > > wrote: > > > > >>>> Hello Talon.... > > > > >>>> Samsung provides a txt file that details how to build the > > kernel...once > > > >>>> your environment is set up correctly you should only need to run a > > script > > > >>>> file that they provide, for example mine is called > > make_kernel_tass_vtr.sh. > > > > >>>> If you take a look at the file it points to a specific config file > > to > > > >>>> use I would use that one initially if your defconfig file is not the > > > >>>> same....they also recommend the Codesourcery cross compiler (which > > that may > > > >>>> or may not be the one that you mentioned).... > > > > >>>> ------------------------------ > > > >>>> *From:* talon1975 <tal.alon1...@gmail.com> > > > >>>> *To:* Android Linux Kernel Development < > > android-kernel@googlegroups.com> > > > > >>>> *Sent:* Sunday, November 20, 2011 9:32 PM > > > >>>> *Subject:* [android-kernel] how to build kernel > > > > >>>> Hi all, > > > > >>>> l download the kernel source from Samsung site and the arm-eabi > > > >>>> toolchine (4.4.0 and 4.4.3) from github. > > > >>>> When i build my kernel (2.6.35.7) on Linux machine the size of > > zImage > > > >>>> is 3.5M and it doesn't work, i found some kernels zImage files and > > the > > > >>>> size is 6.7M and bigger. I use the same defconfig file so I wonder > > > >>>> where is my problem? > > > > >>>> Thanx > > > >>>> talon > > > > >>>> -- > > > >>>> unsubscribe: android-kernel+unsubscr...@googlegroups.com > > > >>>> website:http://groups.google.com/group/android-kernel > > > > >>>> -- > > > >>>> unsubscribe: android-kernel+unsubscr...@googlegroups.com > > > >>>> website:http://groups.google.com/group/android-kernel > > > > >> -- > > > >> unsubscribe: android-kernel+unsubscr...@googlegroups.com > > > >> website:http://groups.google.com/group/android-kernel > > > > > -- > > > > unsubscribe: android-kernel+unsubscr...@googlegroups.com > > > > website:http://groups.google.com/group/android-kernel > > > -- > > unsubscribe: android-kernel+unsubscr...@googlegroups.com > > website:http://groups.google.com/group/android-kernel -- unsubscribe: android-kernel+unsubscr...@googlegroups.com website: http://groups.google.com/group/android-kernel
