kernel modules

[David A. Bandel]

On Thu, 20 Jun 2002 17:51:39 -0400
begin  Bill Davidson <harley7 at mnsi.net> spewed forth:

> I've compiled a kernel and I realize I want to compile 2 more modules.
> If I run make menuconfig, without make mrproper, will all the selections
> that I had previouly chosen stay that way? Is that the way I should do
> it? Then I could run make modules and make modules_install. And if
> that's the way it's done, I don't think I need to reboot, but do I need
> to do anything else? depmod maybe?

All you need to do is:
make menuconfig (choose the new modules)
make modules;make modules_install

modprobe <module>

no need for a reboot or anything.

Note:  the above _only_ works on modules, and on modules in areas where
you already have modules (i.e., there's no change to the kernel itself).
e.g., suppose you chose CONFIG_NETFILTER=y, then made some netfilter
modules.  You later decided to remake iptables, only wanted to add a few
new modules using make most-of-pom.  You could then go to the kernel tree,
and do:
make oldconfig (select as modules the new netfilter modules)
make modules;make modules_install

begin writing rules for the new modules.

However, if you originally said NO to CONFIG_NETFILTER, but now decided
you wanted to try some netfilter modules, you'd have to remake the entire
kernel (make menuconfig;make bzImage;make modules;make modules_install;cp
System.map /boot/System.map;cp arch/i386/boot/bzImage
/boot/bzImage;lilo;shutdown -r now)
Note that, as long as this is just a kernel _remake_, you don't need `make
mrproper`, `make dep`, `make clean`.  I only use the mrproper target the
_very_ first time (not after only a patch-up) or if I change from uni- to
multi- processor.  I only use the dep and clean targets first time around
after I patch up. 

The above is based on my experience and may not be best practice, but it
works (as it has hundreds of times over the years).  I _hate_ waiting for
compile steps I don't need to run, so I take every known shortcut.

Crystal?

Ciao,

David A. Bandel
-- 
Focus on the dream, not the competition.
		-- Nemesis Racing Team motto