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Old 06-08-2005, 03:30 AM   #1
Dr Croubie
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Registered: Mar 2005
Location: c-/ Unibar, Adelaide University, South Australia
Distribution: SuSE 9.1
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Kernel Compilation issues


OK, so this is what happened (i don't know where the problem is, so i'll put in as much detail as possible):

I have suse 9.1, kernel 2.6.4-52 (that came with it). everything worked fine.
but i thought i would have a crack at compiling my own kernel.
so i downloaded kernel 2.6.11.11 from kernel.org (the cd didn't have kernel source on, so i got the latest).
following the directions in one of those (old) pocketbooks, i did all the usual:
make menuconfig
make dep && make clean
make bzImage
make modules
make modules_install
yada yada
but bzImage and System.map in /boot/
update lilo.conf

and reboot the new kernel.

it got as far as "starting network services.. done" and hanged.
rebooted with my old kernel, and i noticed that the line after that one is "syslog services".
anyway.
did "make menuconfig" a few more times, and i don't know what i changed, but now it gets to "loading linux2.6.11.11..." and hangs.

The weird thing is, rebooting with my old kernel works, but "smpppd" seems to be missing. whenever i try to start Kdial, i get a "smpppd may not be running, or broken" message. (and thus, no internet to be had).

So, to start with: can (& if so how can) i go back to the same configuration i had before trying the new kernel? then at least i can get on the net on lin, instead of switching between win for net and lin to recompile.

then: what debugging should i turn on and where should i look to find out the source of the non-bootage?
 
Old 06-08-2005, 03:48 AM   #2
bathory
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Registered: Jun 2004
Location: Piraeus
Distribution: Slackware
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Copy the /boot/config-2.6.4-something to /usr/src/linux-2.6.11.11/ as .config
Code:
cp /boot/config-2.6.4-something /usr/src/linux/.config
assuming you made the symlink /usr/src/linux -->/usr/src/linux-2.6.11.11
and run:
Code:
make oldconfig
as first thing.
 
Old 06-08-2005, 03:51 AM   #3
oneandoneis2
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Registered: Nov 2003
Location: London, England
Distribution: Ubuntu
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And you don't need to run all the rest of the dep, clean, etc. options. That's 2.4 stuff.

The complete set of commands I run for a 2.6 kernel is:

make menuconfig (or oldconfig)
make
make modules_install

Than copy the bzImage & Systemp.map to /boot. That's all that's needed with 2.6
 
Old 06-09-2005, 05:40 AM   #4
Dr Croubie
LQ Newbie
 
Registered: Mar 2005
Location: c-/ Unibar, Adelaide University, South Australia
Distribution: SuSE 9.1
Posts: 10

Original Poster
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well, ok, now it's just being weird...

so i followed your directions, thanks guys:
copied the old config file,
did a make oldconfig.
recompiled (with just the make / make modules_install)
updated lilo
rebooted.


it got back to where it did before, hanging after "starting network services.. done"
so now:
where's the file that lists, in order, what boots (so i can find the module that's causing the problems)?
if logging is enabled (idk if it is), where do i find the log file?
anyone got any other ideas why it's hanging?


(and here's another weird one:
after i reset, load the old kernel, and it goes to prompt only, can't startx, can't shutdown, can't reboot, have to ctrl-alt-del to reset.
load the old kernel again. goes to KDE, but has no smpppd.
reboot old kernel again, goes to prompt again, no x etc.
reboot old kernel again, goes to KDE, and everything's normal.
but that's probably just because i'm rebooting so often...)
 
  


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