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Re: booting another kernel from console

linux lover wrote:

hello,
            i have 2 kernels compiled on my pc one is
default and another is i downloaded and compiled. i
want to know how can i boot from default kernel to new
one compiled kernel? i know how to do it in grub.conf
just i am finding any direct boot option is avail on
console after compiling new kernel.
regards,
linux_lover

Just copy your new bzImage into /boot but give it an informative name. For example if your default kernel is vmlinuz-2.x.y, then name your new kernel vmlinuz-2.w.z (cp bzImage /boot/vmlinuz-2.w.z)

Then you can create a new entry in grub.conf like the following:
title linux (2.w.z)
       root (hd0,0)
       kernel /vmlinuz-2.w.z root=/dev/hdc3 (or where ever your root is)

Don't delete your default kernel entry until you know the new kernel boots okay ;)

- Bill



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