Manual: linux-check-removal

LINUX-CHECK-REMOVAL(1)			   General Commands Manual		      LINUX-CHECK-REMOVAL(1)

NAME
       linux-check-removal - check whether removal of a kernel is safe

SYNOPSIS

       linux-check-removal KERNEL-VER

DESCRIPTION
       linux-check-removal  is intended to be called from the prerm maintainer scripts of Linux kernel pack‐
       ages.

       The KERNEL-VER argument must be the kernel version string as shown by uname -r and used in filenames,
       not the package version.

       If the currently running kernel matches KERNEL-VER, linux-check-removal normally prompts the user  to
       confirm	this potentially dangerous action and fails if the user chooses to abort.  There are two ex‐
       ceptions to this behaviour:

       • If the current environment is a chroot or container, it is assumed that the running kernel is inde‐
	 pendent of any installed kernel package and the command always quietly succeeds

       • If debconf prompts are disabled, the command warns if removing the running kernel but	always	suc‐
	 ceeds

ENVIRONMENT VARIABLES
       DEBIAN_FRONTEND
	      Name  of	the preferred debconf front-end.  If set to noninteractive, debconf prompts are dis‐
	      abled and linux-check-removal always quietly succeeds.
       DPKG_MAINTSCRIPT_PACKAGE
	      Name of the package to be removed, automatically set by dpkg.

AUTHOR
       linux-check-removal and this manual page were  written  by  Ben	Hutchings  as  part  of	 the  Debian
       linux-base package.

						 6 June 2016			      LINUX-CHECK-REMOVAL(1)