Hello
Robert Epprecht (<[EMAIL PROTECTED]>) wrote:
> I have read different documents about kernel compiling,
> but something is still not clear to me:
>
> If I compile different kernels (of the same version) most documents
> say to rename the /lib/modules/x.x.x/ directory before doing the
> 'make modules_install' step.
>
> How can I boot the system after that with an older version?
>
> Could somebody please give a pointer to a document describing how
> to do that?
You can use the "EXTRAVERSION" of the Kernel to have the Modules
installed in different directories. Take a look at the Makefile in your
Kernel source directory. It begins with something like:
VERSION = 2
PATCHLEVEL = 4
SUBLEVEL = 22
EXTRAVERSION =
When you compile different Kernels from the same source and want to
install them on one system, set the extraversion to different values
(normally beginning with an "-"). This way the modules will not be
installed in the same directory. With the above configuration, modules
go to /lib/modules/2.4.22. If I set EXTRAVERSION to -custom, modules go
to /lib/modules/2.4.22-custom. The Kernel knows about its extraversion
and automatically looks for modules in the correct directory.
Maybe you also want to take a look at kernel-package and its make-kpkg
program. It allows you to make deb packages containing kernel source,
doc, image/modules and headers from your source.
best regards
Andreas Janssen
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Andreas Janssen
[EMAIL PROTECTED]
PGP-Key-ID: 0xDC801674
Registered Linux User #267976
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