Comments on: How to compile a kernel for Ubuntu Jaunty http://blog.avirtualhome.com/2009/04/29/how-to-compile-a-kernel-for-ubuntu-jaunty/ Just my thoughts about things Wed, 10 Mar 2010 23:17:01 +0000 http://wordpress.org/?v=2.9.2 hourly 1 By: Ritesh Sinha http://blog.avirtualhome.com/2009/04/29/how-to-compile-a-kernel-for-ubuntu-jaunty/#comment-4192 Ritesh Sinha Fri, 11 Sep 2009 09:45:51 +0000 http://blog.avirtualhome.com/?p=385#comment-4192 Thank you Peter for the very detailed article on compiling kernels. However without sounding like a git myself, I noticed that after I had cloned the Jaunty tree, the debian directory doesn't contain any of the files that require editing. Instead, these files are under the debian.master directory. Are the two directories fundamentally different or do I edit the files in the debian.master directory and proceed? I tried doing that (editing the files under debian.master instead of debian) but the build stage fails (Error: couldn't find debian/control). Its probably a stupid mistake on my part but I'd be really grateful if you could point out where I've screwed up. Again, thanks for taking the time to write the detailed instructions. Thank you Peter for the very detailed article on compiling kernels. However without sounding like a git myself, I noticed that after I had cloned the Jaunty tree, the debian directory doesn’t contain any of the files that require editing. Instead, these files are under the debian.master directory.

Are the two directories fundamentally different or do I edit the files in the debian.master directory and proceed? I tried doing that (editing the files under debian.master instead of debian) but the build stage fails (Error: couldn’t find debian/control).

Its probably a stupid mistake on my part but I’d be really grateful if you could point out where I’ve screwed up. Again, thanks for taking the time to write the detailed instructions.

]]> By: Shyam http://blog.avirtualhome.com/2009/04/29/how-to-compile-a-kernel-for-ubuntu-jaunty/#comment-3716 Shyam Thu, 30 Jul 2009 08:30:05 +0000 http://blog.avirtualhome.com/?p=385#comment-3716 Guys, first thanks for your help. I finally nailed it, its even easier to compile in karmic. See my blog for procedure to do it in karmic. Guys, first thanks for your help. I finally nailed it, its even easier to compile in karmic. See my blog for procedure to do it in karmic.

]]> By: jbernardo http://blog.avirtualhome.com/2009/04/29/how-to-compile-a-kernel-for-ubuntu-jaunty/#comment-3715 jbernardo Thu, 30 Jul 2009 06:50:45 +0000 http://blog.avirtualhome.com/?p=385#comment-3715 You can't cross compile, that is build a kernel for one architecture while running a different architecture, using this method (or at least I have not found how to do it). To build a amd64 kernel, you have to be running a amd64 distribution or a amd64 chroot. I stumbled on the same problem trying to build a lpia kernel, and solved it by creating a chroot. Just google for "chroot ubuntu" and you'll find quite a few suggestions. If someone has a easier solution towards cross compiling a kernel.... You can’t cross compile, that is build a kernel for one architecture while running a different architecture, using this method (or at least I have not found how to do it). To build a amd64 kernel, you have to be running a amd64 distribution or a amd64 chroot. I stumbled on the same problem trying to build a lpia kernel, and solved it by creating a chroot. Just google for “chroot ubuntu” and you’ll find quite a few suggestions.

If someone has a easier solution towards cross compiling a kernel….

]]> By: Alonso http://blog.avirtualhome.com/2009/04/29/how-to-compile-a-kernel-for-ubuntu-jaunty/#comment-3712 Alonso Wed, 29 Jul 2009 20:51:33 +0000 http://blog.avirtualhome.com/?p=385#comment-3712 hi, I have done everithing changing i386 with amd64, but when I try to compile the kernel I get: # CONCURRENCY_LEVEL=2 NOEXTRAS=1 skipabi=true skipmodule=true fakeroot debian/rules binary-core2 make: *** No rule to make target `binary-core2'. Stop. Any ideas? Thanks hi,

I have done everithing changing i386 with amd64, but when I try to compile the kernel I get:

# CONCURRENCY_LEVEL=2 NOEXTRAS=1 skipabi=true skipmodule=true fakeroot debian/rules binary-core2
make: *** No rule to make target `binary-core2′. Stop.

Any ideas?

Thanks

]]> By: jbernardo http://blog.avirtualhome.com/2009/04/29/how-to-compile-a-kernel-for-ubuntu-jaunty/#comment-3709 jbernardo Wed, 29 Jul 2009 13:46:01 +0000 http://blog.avirtualhome.com/?p=385#comment-3709 The hardest part for me in building for karmic (even more thansetting up the chroot to build a lpia kernel) was the config files. You need to copy your config to (assuming the same values as the examples above) debian/config/i386/config.flavour.core2 Then you need to run "debian/scripts/misc/kernelconfig editconfig" which will do a menuconfig on all config files, allowing you to change yours or any of them, and finally will merge common stuff to the common scripts (debian/config/config.common.ubuntu & debian/config/config.common.ports, besides the ones already mentioned) and split the separate stuff into each flavour file. PS: I am typing the config.* names as I recall them, since I am not on my pc right now. The hardest part for me in building for karmic (even more thansetting up the chroot to build a lpia kernel) was the config files. You need to copy your config to (assuming the same values as the examples above) debian/config/i386/config.flavour.core2

Then you need to run “debian/scripts/misc/kernelconfig editconfig” which will do a menuconfig on all config files, allowing you to change yours or any of them, and finally will merge common stuff to the common scripts (debian/config/config.common.ubuntu & debian/config/config.common.ports, besides the ones already mentioned) and split the separate stuff into each flavour file.

PS: I am typing the config.* names as I recall them, since I am not on my pc right now.

]]> By: Peter http://blog.avirtualhome.com/2009/04/29/how-to-compile-a-kernel-for-ubuntu-jaunty/#comment-3708 Peter Wed, 29 Jul 2009 13:07:40 +0000 http://blog.avirtualhome.com/?p=385#comment-3708 I don't have karmic installed, don't have a spare computer for it. I think if you would follow the suggestions given here about Karmic, you should be able to pull it off. I don’t have karmic installed, don’t have a spare computer for it. I think if you would follow the suggestions given here about Karmic, you should be able to pull it off.

]]> By: Shyam http://blog.avirtualhome.com/2009/04/29/how-to-compile-a-kernel-for-ubuntu-jaunty/#comment-3707 Shyam Wed, 29 Jul 2009 12:59:57 +0000 http://blog.avirtualhome.com/?p=385#comment-3707 Is there a full description of karmic files or a guide to compile kernel 2.6.31-X for karmic. I am trying to create new flavour for xps laptops, huge config changes, but I think i need to split config before start the compile. Is there a full description of karmic files or a guide to compile kernel 2.6.31-X for karmic. I am trying to create new flavour for xps laptops, huge config changes, but I think i need to split config before start the compile.

]]> By: jbernardo http://blog.avirtualhome.com/2009/04/29/how-to-compile-a-kernel-for-ubuntu-jaunty/#comment-3578 jbernardo Sun, 19 Jul 2009 18:06:39 +0000 http://blog.avirtualhome.com/?p=385#comment-3578 For karmic, things change a little. You no longer edit control, but create a vars.core2 inside debian/control.d (I just copied vars.generic, removed the amd64 architecture entry and changed the description), and run "debian/rules debian/control" to generate the control file before building the kernel. Also, as Gunnar writes above, the config files now have a config.common.arch and a config.flavour."flavour". For karmic, things change a little. You no longer edit control, but create a vars.core2 inside debian/control.d (I just copied vars.generic, removed the amd64 architecture entry and changed the description), and run “debian/rules debian/control” to generate the control file before building the kernel. Also, as Gunnar writes above, the config files now have a config.common.arch and a config.flavour.”flavour”.

]]> By: Alvaro http://blog.avirtualhome.com/2009/04/29/how-to-compile-a-kernel-for-ubuntu-jaunty/#comment-3554 Alvaro Thu, 16 Jul 2009 04:03:40 +0000 http://blog.avirtualhome.com/?p=385#comment-3554 Hi Peter Out of all the "compiling kernel guides" on the net, you are the only one playing with: * debian/scripts/misc/getabis * debian/rules.d/i386.mk * debian/control.stub * debian/control where can I get official info about those files, why no one else modifies those files? I'm wondering this now cause I never had problem compiling the kernel for debian or ubuntu and never had modified those files either. But now I'm compiling a kernel for a small distro based in debian and I get the following error: dpkg-gencontrol -DArchitecture=i386 -isp -plinux-image-2.6.26-geode-v1 -P/usr/src/linux/debian/linux-image-2.6.26-geode-v1/ dpkg-gencontrol: error: package linux-image-2.6.26-geode-v1 not in control info make[2]: *** [debian/stamp/binary/linux-image-2.6.26-geode-v1] Error 255 make[2]: Leaving directory `/usr/src/linux-source-2.6.26-voyage' make[1]: *** [debian/stamp/binary/pre-linux-image-2.6.26-geode-v1] Error 2 make[1]: Leaving directory `/usr/src/linux-source-2.6.26-voyage' make: *** [kernel_image] Error 2 It seems that I need to set up those files in a similar way as you do... can you suggest me something ? Thanks Hi Peter

Out of all the “compiling kernel guides” on the net, you are the only one playing with:

* debian/scripts/misc/getabis
* debian/rules.d/i386.mk
* debian/control.stub
* debian/control

where can I get official info about those files, why no one else modifies those files?
I’m wondering this now cause I never had problem compiling the kernel for debian or ubuntu and never had modified those files either. But now I’m compiling a kernel for a small distro based in debian and I get the following error:

dpkg-gencontrol -DArchitecture=i386 -isp -plinux-image-2.6.26-geode-v1 -P/usr/src/linux/debian/linux-image-2.6.26-geode-v1/
dpkg-gencontrol: error: package linux-image-2.6.26-geode-v1 not in control info
make[2]: *** [debian/stamp/binary/linux-image-2.6.26-geode-v1] Error 255
make[2]: Leaving directory `/usr/src/linux-source-2.6.26-voyage’
make[1]: *** [debian/stamp/binary/pre-linux-image-2.6.26-geode-v1] Error 2
make[1]: Leaving directory `/usr/src/linux-source-2.6.26-voyage’
make: *** [kernel_image] Error 2

It seems that I need to set up those files in a similar way as you do…

can you suggest me something ?

Thanks

]]> By: Peter http://blog.avirtualhome.com/2009/04/29/how-to-compile-a-kernel-for-ubuntu-jaunty/#comment-3483 Peter Sat, 04 Jul 2009 22:31:52 +0000 http://blog.avirtualhome.com/?p=385#comment-3483 Sounds like you are in the wrong directory. If you have everything in : /d1/kernel/jaunty that where you execute the command. Sounds like you are in the wrong directory.
If you have everything in : /d1/kernel/jaunty that where you execute the command.

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