I asked:

Does anyone have a crib sheet about converting a majordomo site to a mailman (2.0) site? ...

Thanks to Ben Lutgens and Joe Morris for their helpful replies.

My notes on *exactly* what to do and a script that does most of the work are below.

Will

PS: If any of you are interested in the *systematic* exchange of this kind of sysadmin info, consider tuning in to the Arusha Project (http://ark.sourceforge.net).

==== notes ============================================

Switching a list from Majordomo to Mailman

To convert a Majordomo list to a Mailman list, say the wibble list:

1. Remove the wibble majordomo aliases from sendmail-land; and incorporate...

   % sudo newaliases

2. Create a new wibble mailman list, something like:

   % sudo -u mailman bin/newlist --quiet --output=mm-aliases wibble sysadmin-mailing-list-keeper@mekb2.sps.mot.com <passwd>

Note: as you do this several times, new sendmail aliases will pile up in mm-aliases.

3. Copy the old archives into their new home; the majordomo archives should be cat'd together into one big lovely mbox. E.g., as root, run the following script:

   #!/bin/sh -x set -e outf=/user/mailman/archives/private/wibble.mbox/wibble.mbox [ -f $outf ] || touch $outf for i in /user/majordom/archives/wibble/wibble.archive.[1-9]???
   /user/majordom/archives/wibble/wibble.archive.0??? ; do cat $i >> $outf echo '' >> $outf done chown mailman:mailman $outf chmod 664 $outf

4. Munge the mbox:

   % sudo -u mailman bin/arch wibble

   Add the old (majordomo) membership list to the new list; this invocation seems to do it:

   /user/mailman/bin/sync_members
   --welcome-msg=no --notifyadmin=no
   --file /user/majordom/lists/wibble wibble

   Add a -n if you want to do a "dry run"...

5. Make any needed adjustments to the list's settings.

6. Add the mailman aliases (from mmaliases?) for the new list into the sendmail world; then incorporate: sudo newaliases.

==== script ===========================================

#! /bin/sh -x

# this is **NOT** all of what must be done to move a list # from majordomo to mailman, but it is the heavy lifting.

#set -e # paranoia makes a mess, actually...

listname=$1 listpasswd=$2

if [ -z "$listname" ] ; then echo no list name given 2>&1 exit 1 fi

if [ -z "$listpasswd" ] ; then echo no list password given 2>&1 exit 1 fi

KEEPER='sysadmin-mailing-list-keeper@mekb2.sps.mot.com' MAILMAN=/user/mailman MAJORDOMO=/user/majordom

cd $MAILMAN

bin/newlist --quiet --output=mm-aliases $listname $KEEPER $listpasswd

outf=$MAILMAN/archives/private/$listname.mbox/$listname.mbox /bin/rm -f $outf [ -f $outf ] || touch $outf for i in $MAJORDOMO/archives/$listname/$listname.archive.[1-9]???
$MAJORDOMO/archives/$listname/$listname.archive.0??? ; do cat $i >> $outf echo '' >> $outf done chown mailman:mailman $outf chmod 664 $outf

bin/arch $listname

exec bin/sync_members
--welcome-msg=no --notifyadmin=no
--file $MAJORDOMO/lists/$listname $1

# the end