Re: [gentoo-user] genkernel vs kernel manual compilation

[Arnau Bria <arnau@emergetux.net>]

On Fri, 31 Aug 2007 16:09:46 -0400
Ryan Sims wrote:

> On 8/31/07, Arnau Bria <arnau@emergetux.net> wrote:
> > On Fri, 31 Aug 2007 09:41:19 -0400
> > Ryan Sims wrote:
> >
> > > On 8/31/07, Arnau Bria <arnau@emergetux.net> wrote:
> > Hi,
> > > > Really, I like to read people's opinion about genkernel, but no
> > > > one has tried to answer my question yet.
> > >
> > > In my first reply, I suggested looking at a diff between your
> > > config and genkernel's config.  How did that turn out?
> >
> > Mmm... I though I answered that.
> > at conceptual level, I did a gunzip and moved original 2.6.12
> > genkernel's /proc/config.gz to .config and then, make oldconfig in
> > new 2.6.21 sources dir (/usr/src/linux link dir).
> >
> > So, I should do a diff between my new .config after make oldc onfig,
> > and currently config generated by genkernel... but has it sense? I
> > mean, what differneces could be between them?
> 
> That's what we're trying to find out.  If the diff comes up empty,
> we'll have to look elsewhere, but it's easy to check.


afrodita ~ # cp /usr/src/linux/.config config-2.21
afrodita ~ # head config-2.21
#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.21-gentoo-r4
# Wed Aug 29 21:57:06 2007
#
CONFIG_X86_32=y
CONFIG_GENERIC_TIME=y
CONFIG_CLOCKSOURCE_WATCHDOG=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y

afrodita ~ # cd /usr/src/linux
afrodita ~ # uname -a
Linux afrodita 2.6.16-gentoo-r12 #1 SMP Sat Aug 26 23:59:18 CEST 2006 i686 AMD Athlon(tm) Processor AuthenticAMD GNU/Linux

afrodita linux # zcat /proc/config.gz > .config
afrodita linux # zcat /proc/config.gz > .config
afrodita linux # head .config
#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.16-gentoo-r12
# Sat Aug 26 23:44:30 2006
#
CONFIG_X86_32=y
CONFIG_SEMAPHORE_SLEEPERS=y
CONFIG_X86=y
CONFIG_MMU=y
CONFIG_GENERIC_ISA_DMA=y

afrodita linux # make oldconfig
(all default options marked).
afrodita linux # head .config
#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.21-gentoo-r4
# Sat Sep  1 16:40:04 2007

afrodita linux # cp .config /root/config-2.12
afrodita ~ # head -n 5 config-2.12
#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.21-gentoo-r4
# Sat Sep  1 16:33:04 2007
#
afrodita ~ # head -n 5 config-2.21
#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.21-gentoo-r4
# Wed Aug 29 21:57:06 2007
#
afrodita ~ # diff config-2.21 config-2.12
4c4
< # Wed Aug 29 21:57:06 2007
---
> # Sat Sep  1 16:33:04 2007


so, both configs have same options.

> One thing...are you actually going from 2.6.12 to .21?  Or is that a
> typo?
not a typo, going from 2.6.12 to 2.6.21.

> While you're rebooting, see if you can get your new kernel to panic
> again at boot, write down the error, and post it.
> 
I'm compiling the kernel again for seeing the panic.

Cheers,
Arnau
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