moving a mailing list to a new subdomain

I have a mailman install under cPanel, and I need to move my lists from listname@bigdata.org to listname@lists.bigdata.org. I've read quite a few webpages about how to move lists and rename lists, and I've done a lot of testing. I feel like I'm very close to getting this to work. The only problem that remains is scrubbed attachments.
I've followed the directions at http://wiki.list.org/pages/viewpage.action?pageId=4030617, and while it says that "links to scrubbed attachments [that] point to the oldlist" can be fixed with "bin/arch --wipe newlist", this doesn't work for me. the command completes without error, but when I look at an archived message, the I still see "URL: <http://mail.bigdata.org/mailman/private/listname_bigdata.org/attachments/201...>
I have two questions.
For the situation I described, are the instructions on that FAQ (moving the files) the ones I should be following?
Should the arch --wipe command really be fixing the links to the scrubbed attachments? I also tried renaming the list from list1 to list2 without changing the domain, and that didn't help. It seems like it should be easy enough change them manually, but I'd rather use whatever mechanism Mailman provides.
Thanks.
--
Matthew Needham
The HDF Group 1800 South Oak Street, Suite 203 Champaign, IL 61820
217-531-6110 mneedham@hdfgroup.org

An update...
On May 16, 2013, at 14:48 PM, Matthew Needham <mneedham@hdfgroup.org> wrote:
The URL in the archives is updated for attachments that were received when scrubbing is OFF. For attachments that were received when scrubbing is ON, the URL is not rewritten and still points to the old list.
Incidentally, message headers report that this is Mailman 2.1.15.
Thanks.
--
Matthew Needham
The HDF Group 1800 South Oak Street, Suite 203 Champaign, IL 61820
217-531-6110 mneedham@hdfgroup.org

On 05/17/2013 08:45 AM, Matthew Needham wrote:
They are as good as any.
The issue here is that bin/arch --wipe will fix the links to attachments scrubbed during the archiving process. However, for attachments scrubbed during incoming message processing because scrub_nondigest is Yes, the situation is different.
The attachment was saved in the attachments directory and replaced by a link in the actual message body. Thus, the LIST.mbox file contains only the link in the body and the only place the scrubbed attachment exists is in the attachments directory on the old server.
The only way to fix this is to move the actual files from the attachments directory on the old server and update the links manually or possibly with some programmatic process.
-- Mark Sapiro <mark@msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan

An update...
On May 16, 2013, at 14:48 PM, Matthew Needham <mneedham@hdfgroup.org> wrote:
The URL in the archives is updated for attachments that were received when scrubbing is OFF. For attachments that were received when scrubbing is ON, the URL is not rewritten and still points to the old list.
Incidentally, message headers report that this is Mailman 2.1.15.
Thanks.
--
Matthew Needham
The HDF Group 1800 South Oak Street, Suite 203 Champaign, IL 61820
217-531-6110 mneedham@hdfgroup.org

On 05/17/2013 08:45 AM, Matthew Needham wrote:
They are as good as any.
The issue here is that bin/arch --wipe will fix the links to attachments scrubbed during the archiving process. However, for attachments scrubbed during incoming message processing because scrub_nondigest is Yes, the situation is different.
The attachment was saved in the attachments directory and replaced by a link in the actual message body. Thus, the LIST.mbox file contains only the link in the body and the only place the scrubbed attachment exists is in the attachments directory on the old server.
The only way to fix this is to move the actual files from the attachments directory on the old server and update the links manually or possibly with some programmatic process.
-- Mark Sapiro <mark@msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan
participants (2)
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Mark Sapiro
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Matthew Needham