Linux Commands Examples

A great documentation place for Linux commands


install a new kernel image


installkernel version zImage [directory]

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installkernel installs a new kernel image onto the system from the Linux source tree. It is called by the Linux kernel makefiles when make install is invoked there.

The new kernel is installed into {directory}/vmlinuz-{version}. If a symbolic link {directory}/vmlinuz already exists, it is refreshed by making a link from {directory}/vmlinuz to the new kernel, and the previously installed kernel is available as {directory}/vmlinuz.old.


installkernel resides in /sbin only because the Linux kernel makefiles call it from there. It should really be in /usr/sbin. It isn’t needed to boot a system.

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