Created
January 4, 2024 11:52
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Ubuntu Minimal unminimize script
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#!/bin/sh | |
set -e | |
echo "This system has been minimized by removing packages and content that are" | |
echo "not required on a system that users do not log into." | |
echo "" | |
echo "This script restores content and packages that are found on a default" | |
echo "Ubuntu server system in order to make this system more suitable for" | |
echo "interactive use." | |
echo "" | |
echo "Reinstallation of packages may fail due to changes to the system" | |
echo "configuration, the presence of third-party packages, or for other" | |
echo "reasons." | |
echo "" | |
echo "This operation may take some time." | |
echo "" | |
read -p "Would you like to continue? [y/N] " REPLY | |
echo # (optional) move to a new line | |
if [ "$REPLY" != "y" ] && [ "$REPLY" != "Y" ] | |
then | |
exit 1 | |
fi | |
if [ -f /etc/dpkg/dpkg.cfg.d/excludes ] || [ -f /etc/dpkg/dpkg.cfg.d/excludes.dpkg-tmp ]; then | |
echo "Re-enabling installation of all documentation in dpkg..." | |
if [ -f /etc/dpkg/dpkg.cfg.d/excludes ]; then | |
mv /etc/dpkg/dpkg.cfg.d/excludes /etc/dpkg/dpkg.cfg.d/excludes.dpkg-tmp | |
fi | |
echo "Updating package list and upgrading packages..." | |
apt-get update | |
# apt-get upgrade asks for confirmation before upgrading packages to let the user stop here | |
apt-get upgrade | |
echo "Restoring system documentation..." | |
echo "Reinstalling packages with files in /usr/share/man/ ..." | |
# Reinstallation takes place in two steps because a single dpkg --verified | |
# command generates very long parameter list for "xargs dpkg -S" and may go | |
# over ARG_MAX. Since many packages have man pages the second download | |
# handles a much smaller amount of packages. | |
dpkg -S /usr/share/man/ |sed 's|, |\n|g;s|: [^:]*$||' | DEBIAN_FRONTEND=noninteractive xargs apt-get install --reinstall -y | |
echo "Reinstalling packages with system documentation in /usr/share/doc/ .." | |
# This step processes the packages which still have missing documentation | |
dpkg --verify --verify-format rpm | awk '/..5...... \/usr\/share\/doc/ {print $2}' | sed 's|/[^/]*$||' | sort |uniq \ | |
| xargs dpkg -S | sed 's|, |\n|g;s|: [^:]*$||' | uniq | DEBIAN_FRONTEND=noninteractive xargs apt-get install --reinstall -y | |
echo "Restoring system translations..." | |
# This step processes the packages which still have missing translations | |
dpkg --verify --verify-format rpm | awk '/..5...... \/usr\/share\/locale/ {print $2}' | sed 's|/[^/]*$||' | sort |uniq \ | |
| xargs dpkg -S | sed 's|, |\n|g;s|: [^:]*$||' | uniq | DEBIAN_FRONTEND=noninteractive xargs apt-get install --reinstall -y | |
if dpkg --verify --verify-format rpm | awk '/..5...... \/usr\/share\/doc/ {exit 1}'; then | |
echo "Documentation has been restored successfully." | |
rm /etc/dpkg/dpkg.cfg.d/excludes.dpkg-tmp | |
else | |
echo "There are still files missing from /usr/share/doc/:" | |
dpkg --verify --verify-format rpm | awk '/..5...... \/usr\/share\/doc/ {print " " $2}' | |
echo "You may want to try running this script again or you can remove" | |
echo "/etc/dpkg/dpkg.cfg.d/excludes.dpkg-tmp and restore the files manually." | |
fi | |
fi | |
if [ "$(dpkg-divert --truename /usr/bin/man)" = "/usr/bin/man.REAL" ]; then | |
# Remove diverted man binary | |
rm -f /usr/bin/man | |
dpkg-divert --quiet --remove --rename /usr/bin/man | |
fi | |
# unminimization succeeded, there is no need to mention it in motd | |
rm -f /etc/update-motd.d/60-unminimize |
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