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# This script can be called in the following ways:
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# After the package was installed:
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# <postinst> configure <old-version>
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# If prerm fails during upgrade or fails on failed upgrade:
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# <old-postinst> abort-upgrade <new-version>
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# If prerm fails during deconfiguration of a package:
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# <postinst> abort-deconfigure in-favour <new-package> <version>
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# removing <old-package> <version>
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# If prerm fails during replacement due to conflict:
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# <postinst> abort-remove in-favour <new-package> <version>
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# Rename old "mandos" user and group
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case "$(getent passwd mandos)" in
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*:Mandos\ password\ system,,,:/nonexistent:/bin/false)
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usermod --login _mandos mandos
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groupmod --new-name _mandos mandos
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# Create new user and group
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if ! getent passwd _mandos >/dev/null; then
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adduser --system --force-badname --quiet \
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--home /nonexistent --no-create-home --group \
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--disabled-password --gecos "Mandos password system" \
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abort-upgrade|abort-deconfigure|abort-remove)
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echo "$0 called with unknown argument \`$1'" 1>&2