kernel-install — Add and remove kernel and initramfs images to and from /boot
kernel-install
{COMMAND} {KERNEL VERSION} {KERNEL IMAGE}
kernel-install is used to install and remove kernel and
initramfs images to and from /boot
.
kernel-install will execute the files located in the directory /usr/lib/kernel/install.d/
and the local administration directory /etc/kernel/install.d/
.
All files are collectively sorted and executed in lexical order, regardless of the directories in
which they live. However, files with identical file names replace each other.
Files in /etc/kernel/install.d/
take precedence over files with the same name
in /usr/lib/kernel/install.d/
. This can be used to override a system-supplied
executables with a local file if needed; a symbolic link in /etc/kernel/install.d/
with the same name as an executable in /usr/lib/kernel/install.d/
,
pointing to /dev/null, disables the executable entirely. Executables must have the
extension .install; other extensions are ignored.
The following commands are understood:
calls every executable /usr/lib/kernel/install.d/*.install
and /etc/kernel/install.d/*.install
with the arguments
"add <KERNEL VERSION> /boot/<MACHINE-ID>/<KERNEL VERSION>/
"
kernel-install copies <KERNEL IMAGE> to
/boot/<MACHINE-ID>/<KERNEL VERSION>/linux
.
kernel-install also creates a boot loader entry according to the boot loader specification
in /boot/loader/entries/<MACHINE-ID>-<KERNEL VERSION>.conf
.
If the file initrd
is found next to the linux
file,
the initrd will be added to the configuration.
calls every executable /usr/lib/kernel/install.d/*.install
and /etc/kernel/install.d/*.install
with the arguments:
"remove <KERNEL VERSION> /boot/<MACHINE-ID>/<KERNEL VERSION>/
"
kernel-install removes the entire directory /boot/<MACHINE-ID>/<KERNEL VERSION>/
and the file /boot/loader/entries/<MACHINE-ID>-<KERNEL VERSION>.conf
/usr/lib/kernel/install.d/*.install
/etc/kernel/install.d/*.install
Drop-in files, which are executed by kernel-install.
/etc/kernel/cmdline
/proc/cmdline
The content of the file /etc/kernel/cmdline
specifies the kernel command line to use.
If that file does not exist, /proc/cmdline
is used.
/etc/machine-id
The content of the file specifies the machine identification <MACHINE-ID>.
/etc/os-release
The content of the file specifies the operating system id <OS-ID>.