Jean-Michel etc.
In most cases the prolem lies in the kernel and the patching.
One way round this may be to get a prepatched kernel from the RT Linux site.
The steps I use are :
1/ get a clean kernel from ftp.kernel.org
2/ get the patch file FOR THAT KERNEL.
3/ move your current copy of /usr/src/linux ( if it is not a link ) to
/usr/src/oldlinux
check with
ls -l /usr/src
links look like this
ls -l /usr/src/linux
lrwxrwxrwx 1 root root 17 Aug 17 1998 /usr/src/linux ->
va-linux-2.0.34-1
( in this case just delete the link and do the untar )
If you have to move a tree do
cd /usr/src
mv linux oldlinux
4/ untar the kernel tarball into /usr/src/linux
cd /usr/src
tar xvzf linux.2.0.36.tgz ./
this will create a new linux directory
I immeidately move this so that I can use a link
ie
cd /usr/src
mv linux rtlinux
and then make a link to the rtlinux tree
ln -s rtlinux linux
5/ At this point try to recomplie the new kernel without any RTL patch......
make config
make dep ; make clean; make bzImage
6/ copy the arch/i386/boot/bzImage to a floppy disk and test the boot
dd if/=arch/i386/boot/bzImage of=/dev/fd0
7/ You should boot but all your modules will fail.
To make the modules work try
cd /usr/src/linux
make modules; make modules_install
you may want to save your old modules .. look in /lib/modules if you dont
have a 2.0.36 dir you are OK
ie
ls /lib/modules
2.0.30 2.0.31 2.0.34
is OK
If the floppy boot works try a make bzlilo and check the new kernel boots
and that the modules all look OK
no errors at boot time.
8/ If all this works now is the time to apply the patch.
I normally at this time tar up the kernel source so that I can recover
from failed patches.
cd /usr/src
tar cvzf rtlinux.tgz rtlinux
then I cd linux ( link to rtlinux ) and apply the patch file as in the
README
you can pipe the patch output to a log file
patch -p1 <../kernel_patch > ../patch.out 2>&1 ( use
as in the README file )
then inspect the patch file
more ../patch.out
and make sure all the patches work.
9/ only if this lot works can you try to recompile the kernel again.
Repeat ALL the steps 5,6 and 7
10 / Now compile and attempt to insmod the RTL systems.
This has worked so far on about 6 systems for me.
Hope this helps
Phil Wilshire
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