[Bug 1549319] Re: server iso install prompts for postfix config

[Scott Moser]

I think i'm going to change this into a bug to Suggests, not Recommends 'mta' from mdadm.
Adam Conrad, Scott Kitterman and I had some discussion on that at http://irclogs.ubuntu.com/2015/08/06/%23ubuntu-devel.html#t22:53 .

We'll change /etc/cron.daily/mdadm  to use '
exec $MDADM --monitor --scan --oneshot --program=/usr/lib/mdadm/update-motd

and then have /usr/lib/mdadm/update-motd like below.
mdadm invokes the program once for each event, so to collect only the last run's events we have to do this business with statefile and the parent pid.

#!/bin/sh
# keep state in statefile and write otuput to motdfile
fail() { echo "$@" 1>&2; exit 1; }
statefile="/tmp/mydir/mystate.txt"
motdfile="/tmp/output"
[ $# -eq 0 ] && exit 0

[ -d "${statefile%/*}" ] || mkdir -p "${statefile%/*}"
parent="$PPID"
event="$1"
target="$2"
[ $# -eq 2 ] || fail "bad args for $0: $*"

# clean out any old info
echo "$parent $event $target" >> "$statefile" ||
   fail "failed writing $statefile"
sed -i "/^$parent /!d" "$statefile" || fail "failed update $statefile"

while read ppid event target; do
   echo "parent $parent said event=$event target=$target"
done < "$statefile" > "$motdfile"

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https://bugs.launchpad.net/bugs/1549319

Title:
  server iso install prompts for postfix config

Status in mdadm package in Ubuntu:
  New

Bug description:
  During attended install of ubuntu server iso, user is prompted for exim config.
  Is it possible to seed the 'No Configuration' in the installer?

  The change is due to having mdadm in the default install now, and that
  pulling in postfix.

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