postrm is in dropbear-initramfs 2016.74-5+deb9u1.
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.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 | #! /bin/sh
set -e
if [ "$1" = purge ]; then
rm -f /etc/dropbear-initramfs/dropbear_dss_host_key
rm -f /etc/dropbear-initramfs/dropbear_rsa_host_key
rm -f /etc/dropbear-initramfs/dropbear_ecdsa_host_key
rm -f /etc/dropbear-initramfs/authorized_keys
rm -f /etc/dropbear-initramfs/id_dsa.pub
rm -f /etc/dropbear-initramfs/id_rsa.pub
rm -f /etc/dropbear-initramfs/id_ecdsa.pub
# XXX backward compatibility; remove once Stretch is the current stable
elif [ "$1" = 'abort-upgrade' -o "$1" = 'abort-install' ] && [ $# -ge 2 ] && \
dpkg --compare-versions "$2" le '2016.72-1'; then
for x in dss rsa ecdsa; do
if [ -f "/etc/dropbear-initramfs/dropbear_${x}_host_key" ] &&
[ ! -f "/etc/initramfs-tools/etc/dropbear/dropbear_${x}_host_key" ]; then
[ -d /etc/initramfs-tools/etc/dropbear ] || mkdir -p /etc/initramfs-tools/etc/dropbear
mv -n "/etc/dropbear-initramfs/dropbear_${x}_host_key" /etc/initramfs-tools/etc/dropbear
fi
done
for x in authorized_keys id_dsa.pub id_rsa.pub id_ecdsa.pub; do
if [ -f "/etc/dropbear-initramfs/$x" ] &&
[ ! -f "/etc/initramfs-tools/root/.ssh/$x" ]; then
[ -d /etc/initramfs-tools/etc/dropbear ] || mkdir -pm0700 /etc/initramfs-tools/root/.ssh
mv -n "/etc/dropbear-initramfs/$x" /etc/initramfs-tools/root/.ssh
fi
done
rmdir --ignore-fail-on-non-empty /etc/dropbear-initramfs
fi
# Automatically added by dh_installdeb
dpkg-maintscript-helper symlink_to_dir /usr/share/doc/dropbear-initramfs dropbear-bin 2016.72-1 -- "$@"
# End automatically added section
exit 0
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