os/etc/kernel/postrm.d/cleanup.sh


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#!/bin/sh
set -eu

VERSION=$1

find /boot -maxdepth 1 -type f -not -name "*${VERSION}*" \( -name 'System.map*' -or -name 'vmlinuz*' -or -name 'initramfs*' \) -print \
	| xargs rm -v

echo
echo "done."