Re: [gentoo-dev] kernel source for gentoo

[Collins Richey <erichey2@home.com>]

On Fri, 18 May 2001 20:40:53 -0600 Collins Richey <erichey2@home.com>
wrote:

> On Fri, 18 May 2001 19:08:26 +0200 AGottinger@t-online.de (Achim
> Gottinger)
> wrote:
> 
> > Collins Richey wrote:
> > > 
> > > On Fri, 18 May 2001 01:44:52 +0200 AGottinger@t-online.de (Achim
> > Gottinger)
> > > wrote:
> > > 
> > > > Collins Richey wrote:
> > > > >
> > > > > On Sun, 13 May 2001 16:08:07 +0200 AGottinger@t-online.de (Achim
> > > > Gottinger)
> > > > > wrote:
> > > > >
> > > > > > Collins Richey wrote:
> > > > > > >
> > > 
> > > > > > > The kernel you supply, for example, has no sound modules
> > compiled,
> > > > and
> > > > > > I would like to recompile for sound support (esssolo1.o and
> > > > soundcore.o
> > > > > > are needed) without breaking anything else.
> > > > > >
> > > > > > (The default kernel contains all alsa sound modules)
> > > > > >
> > > > >
> > > > > fyi, this doesn't do much good unless you have a sound card that
> > works
> > > > with
> > > > > als.
> > > > >
> > > > > > Current kernel source poackage is broken, eigher use
> > > > > > linux-source-2.4.4-rx.ebuild or
> > > > > > use a default kernel and run a manual config inbetween.
> > > > > >
> > > > > > cd /usr/portage/sys-kernel/linux
> > > > > > ebuild linux-2.4.4.5.ebuild unpack
> > > > > > cd /tmp/portage/linux-2.4.4.5/work/linux
> > > > > > make menuconfig
> > > > > > cd /usr/portage/sys-kernel/linux
> > > > > > ebuild linux-2.4.4.5.ebuild merge
> > > > > >
> > > > > >
> > > > >
> > > > > As I alluded to earlier, it isn't a really good idea to overwrite
> > the
> > > > > working kernel.  Fortunately I saved the old kernel and modules. 
> > The
> > > > only
> > > > > change I made was to add the esssolo1 module, but the new kernel
> > came
> > > > up
> > > > > with modules problems and no working eth0.
> > > > >
> > > > > I think I'll try standard kernel build procedures from the
> > > > > /tmp/portage/linux-2.4.4.5/work/linux directory with all your
> > patches
> > > > > applied.
> > > >
> > > > Hi Collins,
> > > >
> > > > I updated the kernel packages yesterday, you can now use
> > > > linux-sources-2.4.4.9
> > > >
> > > > If you want the default configuration copy
> > > >
> /usr/portage/sys-kernel/linux-sources/files/2.4.4-ac9/config.bootcomp
> > to
> > > > /usr/src/linux/.config before you run make {x,menu}config.
> > > >
> > > > This kernel package uses the following USE variables for extras
> "lvm
> > > > lm_sensors pcmcia-cs alsa".
> > > > Add the ones you want top the USE variable in /etc/make.conf.
> > > >
> > > > After you have build the kernel you can build the extras modules
> and
> > > > utilities by installing
> > > >
> > > > linux-extras-2.4.4.9.ebuild.
> > > >
> > > 
> > > It doesn't work.  I did the following
> > > 
> > >         cd /usr/portage/sys-kernel/linux-sources
> > >         ebuild linux-2.4.4.9.ebuild unpack
> > >         cp
> > /usr/portage/sys-kernel/linux-sources/files/2.4.4-ac9/config.bootcomp
> > > /usr/src/linux/.config
> > >         cd /tmp/portage/linux-2.4.4.9/work/linux
> > >         tried make xconfig (error option not found)
> > >         make menuconfig (added esssolo1 and corrected stuff for
> > ide-scsi)
> > >         cd /usr/portage/sys-kernel/linux-sources
> > >         ebuild linux-2.4.4.9.ebuild merge
> > > 
> > > When I booted from the new kernel, eth0 would not start.  I
> discovered
> > that
> > > the procedure had added empty /etc/modules/2.4.4-ac5 for 2.4.4-ac5
> but
> > no
> > > /lib/modules/2.4.4-ac5.  Only /etmodules/2.4.4-ac3 and
> > > /lib/modules/2.4.4-ac3 contain data.  Since the kernel calls itself
> > -ac5,
> > > modprobe, etc. will not use any of the modules.
> > 
> > Hmm, there seems to be a bug in modultils.
> > /lib/modules/[uname-r]/modules.dep is not generated correct.
> > 
> > Remove /etc/modules/[unname -r] and /etc/modules.conf  and run
> > /etc/rc.d/init.d/modules. This will generate those files again.
> > 
> > I'm working on that bug here at the moment.
> > 
> 
> That may be a problem, too, but I don't think that will fix my problem. 
> Something went wrong with the kernel + modules ebuild.  The normal output
> of the kernel sequence, ie make mrproper, make xxxconfig, make deps make,
> make modules and make modules_install is a bzImage (ebuild got that
> right)
> and a modules directory /lib/module/kernelname (ebuild did not produce
> this), so the merge really failed even though it said it was complete. 
> It
> won't do me any good to rebuild the modules.conf etc - the modules
> themselves are missing in action.
> 

FYI.  I've found part of the problem with your kernel ebuild.  I don't know
whether the problen is yours or modutils.  Here's what I did to get a
working kernel

cd /usr/portage/sys-kernel/linu
ebuild linux-2.4.4.5.ebuild unpack
cp -a /tmp/portage/linux-sources-2.4.4.9/work/linux-2.4.4-ac9 /home/collins
cd /home/collins/linux-2.4.4-ac9
make mrproper
make menuconfig
loaded
/usr/portage/sys-kernel/linux-sources/files/2.4.4-ac9/config.bootcomp
modified to add support for esssolo1 and altered a few SCSI settings to get
my CDRW to work
mv'd the /usr/modules/2.4.4-ac3 directory to another name
make dep && make bzImage && make modules && make modules_install
	Everything successful, except at the end of make modules install
	the script attempted to write to /lib/modules/2.4.4-ac3 !!! and failed
	(even though everything else was done for 2.4.4-ac9)
Created an empty 2.4.4-ac3 directory
reran make modules_install
	The script created the mod*** entries in 2.4.4-ac3 instead of 
	in 2.4.4-ac9 where they belong
cp /lib/modules/2.4.4-ac3/* /lib/modules/2.4.4-ac9 where they belong 
	(the actual modules were installed in 2.4.4-ac9)
rm -r /lib/modules/2.4.4-ac3 (the dummy directory)
mv /lib/modules/old-2.4.4-ac3 /lib/modules/2.4.4-ac3 
	(In case I need to boot the old image)
copied the bzImage to /boot/boot
mounted my other distribution partitions and did /sbin/lilo 
reboot - success
	The boot scripts did build the /etc/modules/... stuff and
/etc/modules.conf
	eth0 came up ok, but the scsi-ide stuff I added did not come up
automatically.
	I had to modprobe to load them.  Discovered that the esssolo1 module needs
	soundcore as a module.
modified the .config file
moved the /lib/modules/2.4.4-ac3 directory, made a dummy again
make dep && make bzImage && make modules && make modules_install
	This time the moduels_install put the mod*** files in the ac9 directory!!!
rm -r /lib/modules/2.4.4-ac3 (the dummy directory)
mv /lib/modules/old-2.4.4-ac3 /lib/modules/2.4.4-ac3 
copied the bzImage to /boot/boot
mounted my other distribution partitions and did /sbin/lilo 
reboot - success
	After modprobing, CDRW stuff ok (screcord --scanbus works)
	esssolo1 loaded correctly, but still not getting sound	

I hope this helps in your developing a robust kernel build ebuild.


Thanks
-- 
Collins Richey
Denver area
gentoo system