Messages in this thread | | | Date | Mon, 12 Oct 1998 23:58:20 +0200 | From | Marc Corel <> | Subject | Different kernels coexisting on the same system..how does it work?? |
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Hello...
Originally, I have redhat 5.0/kernel 2.0.32 on my linux box. I went downloading kernel 2.0.34 and 2.0.35, did installed them in their respective directories. That gives me following directories in /usr/src:
-/usr/src/linux -/usr/src/linux-2.0.32 -/usr/src/linux-2.0.34 -/usr/src/linux-2.0.32 ..What I did is to run make config/make dep/make clean/make_modules, make modules_install in each directory and copied their zImage in /boot: - cp /usr/src/li/usr/src/linux-2.0.32/arch/i386/boot/zImage /boot/vmlinuz-2.0.32 -cp /usr/src/li/usr/src/linux-2.0.34/arch/i386/boot/zImage /boot/vmlinuz-2.0.34 -cp /usr/src/li/usr/src/linux-2.0.35/arch/i386/boot/zImage /boot/vmlinuz-2.0.35 Of course I also did: In /boot: ln -sf vmlinuz-2.0.32 vmlinuz ln -sf vmlinuz-2.0.34 vmlinuz ln -sf vmlinuz-2.0.35 vmlinuz Finally, in /etc/lilo.conf , there are several stanzas of my several kernels.
I) What I could understand is that whatever kernel I m bootin, there is a "trusted" kernel (if I can all it that way) and it s the original one that was installed on my system (kernel 2.0.32) right??? II) Whatever kernel I m bootin, the config files stay the same...but this cause a problem: for ie..on kernel 2.0.32 IP_forwarding was not built in. On kernel 2.0.34 I specifically recompile IP_forwarding in, but there s no appearent difference between both.
III) Is the way I ve configured my system right (with those 3 kernels)?? To make sure I m bootin the kernel of my choice, I copied the zImage of ech kernel on a floppy. So I just boot with the right floppy I
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