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Re: 2.6.21

On Mon, May 14, 2007 at 06:45:47PM +0200, maximilian attems wrote:
> heya,
> 
> upload planed for wednesday to experimental.
> 
> to make it available, also due to dynticks it sounds like the much better
> candidate for the next d-i beta round.  although there is no new xen
> patch, kvm should already be interesting in 2.6.21.
> buildserver seem not to pick up trunk.
> 
> planed changes (please add yours):
> * CONFIG_TIMER_STATS for i386

I would like to be able to build m68k images, but so far creating debs still
fails for m68k. This patch allows me to get a little further in the build
process, so I assume I can commit it, but I wouldn't mind if somebody who
actually knows what is happening here and why this was introduced after
2.6.18 had a look on it:

--- rules.real  (revision 8579)
+++ rules.real  (working copy)
@@ -422,7 +422,8 @@
 install-image-i386-$(SUBARCH)-$(FLAVOUR)-plain_image:
        cp '$(DIR)/arch/$(KERNEL_ARCH)/boot/bzImage'
$(INSTALL_DIR)/vmlinuz-$(REAL_VERSION)

-install-image-powerpc-$(SUBARCH)-$(FLAVOUR)-plain_image:
+install-image-powerpc-$(SUBARCH)-$(FLAVOUR)-plain_image \
+install-image-m68k-$(SUBARCH)-$(FLAVOUR)-plain_image:
        install -m644 '$(DIR)/vmlinux'
$(INSTALL_DIR)/vmlinux-$(REAL_VERSION)

 install-image-s390-$(SUBARCH)-$(FLAVOUR)-plain_image:


Now the problem is here:

dh_installdirs 'boot'
/usr/bin/make -f debian/rules.real \
          install-image-m68k-none-amiga-plain_image \
          DIR='debian/build/build-m68k-none-amiga'
          INSTALL_DIR='/home/cts/work/kernel/linux-2.6-2.6.21/debian/linux-image-2.6.21-1-amiga/boot'
          REAL_VERSION='2.6.21-1-amiga'
make[3]: Entering directory `/home/cts/work/kernel/linux-2.6-2.6.21'
install -m644 'debian/build/build-m68k-none-amiga/vmlinux' /home/cts/work/kernel/linux-2.6-2.6.21/debian/linux-image-2.6.21-1-amiga/boot/vmlinux-2.6.21-1-amiga
make[3]: Leaving directory `/home/cts/work/kernel/linux-2.6-2.6.21'
cd debian/build/build-m68k-none-amiga; env -u ABINAME -u ARCH -u SUBARCH -u FLAVOUR -u VERSION -u LOCALVERSION -u MAKEFLAGS DISTRIBUTION_OFFICIAL_BUILD=1 DISTRIBUTION_UPLOADER=maks@debian.org DISTRIBUTION_VERSION="2.6.21-1~experimental.1" make modules_install INSTALL_MOD_PATH=/home/cts/work/kernel/linux-2.6-2.6.21/debian/linux-image-2.6.21-1-amiga
make[3]: Entering directory
`/home/cts/work/kernel/linux-2.6-2.6.21/debian/build/build-m68k-none-amiga'
[...]
make[3]: Leaving directory `/home/cts/work/kernel/linux-2.6-2.6.21/debian/build/build-m68k-none-amiga'
cp debian/build/build-m68k-none-amiga/.config /home/cts/work/kernel/linux-2.6-2.6.21/debian/linux-image-2.6.21-1-amiga/boot/config-2.6.21-1-amiga
cp debian/build/build-m68k-none-amiga/System.map //home/cts/work/kernel/linux-2.6-2.6.21/debian/linux-image-2.6.21-1-amiga/boot/System.map-2.6.21-1-amiga
rm /home/cts/work/kernel/linux-2.6-2.6.21/debian/linux-image-2.6.21-1-amiga/lib/modules/2.6.21-1-amiga/{build,source,modules.*}
rm: cannot remove /`/home/cts/work/kernel/linux-2.6-2.6.21/debian/linux-image-2.6.21-1-amiga/lib/modules/2.6.21-1-amiga/build':
No such file or directory
rm: cannot remove `/home/cts/work/kernel/linux-2.6-2.6.21/debian/linux-image-2.6.21-1-amiga/lib/modules/2.6.21-1-amiga/source':
No such file or directory
rm: cannot remove `/home/cts/work/kernel/linux-2.6-2.6.21/debian/linux-image-2.6.21-1-amiga/lib/modules/2.6.21-1-amiga/modules.*':
No such file or directory
make[2]: *** [install-image-m68k-none-amiga-plain] Error 1

The correct directory name would be:
linux-2.6-2.6.21/debian/linux-image-2.6.21-1-amiga/lib/modules/2.6.21-1-amiga-m68k/
So either this directory name has to be changed, or REAL_VERSION='2.6.21-1-amiga'
has to be changed. I guess it is the former, but I haven't figured out
where. Again, it would be really helpful if whoever changed the code could give me
a hint why it works on other arches but not on m68k. I haven't changed
anything in rules or rules.real and it was working just fine in 2.6.18 for
m68k. Why do we have all these exceptions for several arches, I thought this
is the common source package? To me it looks as if things become less and
less common with every new version, and if it continues like this, I will
have to build m68k kernels outside of the common package again, simply
because m68k images can not be built from there. There might be a perfectly
good reason for all these changes, but I have been unable to find an
explanation for it so far, where should I look?

Full build log is here:
http://people.debian.org/~cts/linux-m68k/linux-2.6_2.6.21-1~experimental.1_m68k.build

Christian
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