postinst is in uuid-runtime 2.27.1-6ubuntu3.
This file is a maintainer script. It is executed when installing (*inst) or removing (*rm) the package.
The actual contents of the file can be viewed below.
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set -e
# upgrade existing libuuid user/group.
if getent group libuuid >/dev/null && ! getent group uuidd >/dev/null ; then
groupmod --new-name uuidd libuuid
fi
if getent passwd libuuid >/dev/null && ! getent passwd uuidd >/dev/null ; then
# attempt to stop potentially running uuidd, otherwise usermod will fail.
invoke-rc.d --quiet uuidd stop || true
# rename user, change shell and set new homedir.
usermod --login uuidd --shell /bin/false --home /run/uuidd libuuid
# attemp cleanup of old home directory.
[ -d /var/lib/libuuid ] && \
rmdir --ignore-fail-on-non-empty /var/lib/libuuid || true
fi
# add uuidd user/group if needed.
if ! getent group uuidd >/dev/null; then
addgroup --system uuidd
fi
if ! getent passwd uuidd >/dev/null; then
adduser --system --ingroup uuidd \
--home /run/uuidd --no-create-home \
uuidd
fi
# Automatically added by dh_systemd_enable
# This will only remove masks created by d-s-h on package removal.
deb-systemd-helper unmask uuidd.service >/dev/null || true
# was-enabled defaults to true, so new installations run enable.
if deb-systemd-helper --quiet was-enabled uuidd.service; then
# Enables the unit on first installation, creates new
# symlinks on upgrades if the unit file has changed.
deb-systemd-helper enable uuidd.service >/dev/null || true
else
# Update the statefile to add new symlinks (if any), which need to be
# cleaned up on purge. Also remove old symlinks.
deb-systemd-helper update-state uuidd.service >/dev/null || true
fi
# End automatically added section
# Automatically added by dh_systemd_enable
# This will only remove masks created by d-s-h on package removal.
deb-systemd-helper unmask uuidd.socket >/dev/null || true
# was-enabled defaults to true, so new installations run enable.
if deb-systemd-helper --quiet was-enabled uuidd.socket; then
# Enables the unit on first installation, creates new
# symlinks on upgrades if the unit file has changed.
deb-systemd-helper enable uuidd.socket >/dev/null || true
else
# Update the statefile to add new symlinks (if any), which need to be
# cleaned up on purge. Also remove old symlinks.
deb-systemd-helper update-state uuidd.socket >/dev/null || true
fi
# End automatically added section
# Automatically added by dh_installinit
if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ]; then
if [ -x "/etc/init.d/uuidd" ]; then
update-rc.d uuidd defaults >/dev/null
fi
if [ -x "/etc/init.d/uuidd" ] || [ -e "/etc/init/uuidd.conf" ]; then
if [ -n "$2" ]; then
_dh_action=restart
else
_dh_action=start
fi
invoke-rc.d uuidd $_dh_action || exit $?
fi
fi
# End automatically added section
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