+WantedBy=timers.target
+EOF
+ser daemon-reload
+sgo schrootupdate.timer
+
+
+
+# for my roommate
+case $distro in
+ trisquel)
+ m mkschroot debian stretch firefox-esr pulseaudio chromium
+ ;;
+ debian)
+ pi chromium
+ ;;
+esac
+
+sudo mkdir -p /nocow/user
+sudo chown $USER:$USER /nocow/user
+pi anki
+
+
+####### begin transmission
+
+case $HOSTNAME in
+ frodo)
+ tdir=/i/k
+ ;;
+ *)
+ tdir=/nocow/user
+ ;;
+esac
+
+# adapted from /var/lib/dpkg/info/transmission-daemon.postinst
+# 450 seems likely to be unused. we need to specify one or else
+# it won't be stable across installs.
+if ! getent passwd debian-transmission > /dev/null; then
+ sudo groupadd -g 450 debian-transmission
+ sudo adduser --quiet \
+ --gid 450 \
+ --uid 450 \
+ --system \
+ --no-create-home \
+ --disabled-password \
+ --home /var/lib/transmission-daemon \
+ debian-transmission
+fi
+# We want group writable stuff from transmission.
+# However, after setting this, I learn that transmission sets it's
+# own umask based on it's settings file. Well, no harm leaving this
+# so it's set right from the beginning.
+sudo chfn debian-transmission -o umask=0002
+
+# note i had to do this, which is persistent:
+# cd /i/k
+# s chgrp debian-transmission torrents partial-torrents
+
+# syslog says things like
+# 'Failed to set receive buffer: requested 4194304, got 425984'
+# google suggets giving it even more than that
+tu /etc/sysctl.conf<<'EOF'
+net.core.rmem_max = 67108864
+net.core.wmem_max = 16777216
+EOF
+sudo sysctl -p
+
+# some reason it doesn\'t seem to start automatically anyways
+pi-nostart transmission-daemon
+# be extra sure its not started
+ser disable transmission-daemon
+ser stop transmission-daemon
+
+# the folder was moved here after an install around 02/2017.
+# it contains runtime data,
+# plus a simple symlink to the config file which it\'s
+# not worth separating out.
+# between comps, the uid can change
+f=$tdir/transmission-daemon
+mkdir -p $f
+s lnf -T $f /var/lib/transmission-daemon/.config/transmission-daemon
+s lnf -T /etc/transmission-daemon/settings.json $f/settings.json
+sudo chown -R debian-transmission:debian-transmission $f
+for f in $tdir/partial-torrents $tdir/torrents; do
+ if [[ -e $f ]]; then
+ sudo chown -R debian-transmission:user2 $f
+ fi
+done
+sudo chown -R debian-transmission:debian-transmission /var/lib/transmission-daemon
+#
+# config file documented here, and it\'s the same config
+# for daemon vs client, so it\'s documented in the gui.
+# https://trac.transmissionbt.com/wiki/EditConfigFiles#Options
+#
+# I originaly setup rpc-whitelist, but after using
+# routing to a network namespace, it doesn\'t see the
+# real source address, so it\'s disabled.
+#
+# Changed the cache-size to 256 mb, reduces disk use.
+# It is a read & write cache.
+sudo ruby <<EOF
+require 'json'
+p = '/etc/transmission-daemon/settings.json'
+File.write(p, JSON.pretty_generate(JSON.parse(File.read(p)).merge({
+'rpc-whitelist-enabled' => false,
+'rpc-authentication-required' => false,
+'incomplete-dir' => '$tdir/partial-torrents',
+'incomplete-dir-enabled' => true,
+'download-dir' => '$tdir/torrents',
+"speed-limit-up" => 800,
+"speed-limit-up-enabled" => true,
+"peer-port" => 61486,
+"cache-size-mb" => 256,
+"ratio-limit" => 5.0,
+"ratio-limit-enabled" => true,
+})) + "\n")