Hi,
Myself asked a few days ago:
Is it possible to build T2-Head with a 2.4 linux kernel? Or an older
2.6.x version? And if so, how do I go about it?
I tried deselecting the linux26 package and adding linux24 instead but
that apparently was not enough. T2 attempted to build a 2.4 kernel but
failed. I have not investigated that further as I really wanted a
2.6.18 kernel. The system I have been targeting is reported to work
with that version plus patches that I have.
So I first looked up the change history for base/package/linux26 and
found that a kernel newer than 2.6.18.x was introduced:
svn log package/base/linux26 | less
And found it was in 21075:
------------------------------------------------------------------------
r21075 | rene | 2006-11-30 11:27:37 +0100 (Thu, 30 Nov 2006) | 2 lines
* updated linux26 (2.6.18.3 -> 2.6.19)
I then downgraded the packages linux-headers, linux24, and linux26 to
the revision immediately preceding this one:
svn update -r 21074 package/base/linux-header
svn update -r 21074 package/base/linux24
svn update -r 21074 package/base/linux26
I then copied the patches, config-adaptations etc to my target.
cp -r packages/base/linux-header target/kbox/package
cp -r packages/base/linux24 target/kbox/package
cp -r packages/base/linux26 target/kbox/package
I stole that idea from other targets. I then reran the
T2-Configuration, and ./scripts/Download -required.
And right, it downloads 2.6.18-stuff. Fine.
./scripts/Build-Target fails unfortunately:
> ..
> patching file include/acpi/acpiosxf.h
> patching file init/main.c
> You should not call uname during the build!
> Makefile:409:
/home/kbox/t2/src.linux26.default.20080711.092946.29331.kboxdev/linux-2.6.18/arch/x86/Makefile:
> No such file or directory
> make: *** No rule to make target
`/home/kbox/t2/src.linux26.default.20080711.092946.29331.kboxdev/linux-2.6.18/arch/x86/Makefile'.
Stop.
The reason for this is simple: There is no arch/x86 in linux 2.6.18. It's
still arch/i386.
The T2-code that precedes the error-report is in
package/base/linux24/linux-conf.in:
# some arches (avr32, sh64 at the time of writing) have a "defect" Makefile
# and do not work without a .config ...
yes '' | eval $MAKE $makeopt oldconfig > /dev/null
$makeopt has ARCH=x86
So I also downgraded ./architecture as well. I ran ./scripts/Config again,
and switched the architecture for my build away from and back to x86.
Unfortunately that was not the case, the error persists.
What would be the T2-way of fixing this?
Ciao, MM
--
Marian Aldenhövel, Rosenhain 23, 53123 Bonn
http://www.marian-aldenhoevel.de
"I ran some quick calculations on it. He's about 80% on the right
track. That leaves him only 20% dead when he crashes." Bob C
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