Re: Converting NNMH mail to NNML.

[Kai.Grossjohann@CS.Uni-Dortmund.DE (Kai Großjohann)]

Jorge Godoy <godoy@conectiva.com> writes:

> I have something near 70 folders with thousands of messages using nnmh
> backend. I'd like to switch to nnml. I've been trying it the way
> described in the info (respooling) but I've done something wrong and
> the mail was wrongly separated. 

You appear to want to go from:

(setq gnus-secondary-select-methods '((nnmh "")))

to:

(setq gnus-secondary-select-methods '((nnml "")))

For this special case, there is a shortcut: nnmh uses files in ~/Mail
for the messages, such that ~/Mail/mail/misc/1 is the first message in
nnmh:mail.misc.  nnml uses files in ~/Mail for the messages, such that
~/Mail/mail/misc/1 is the first message in nnml:mail.misc.

So the only thing that's missing from nnml is the overview files.  You
can generate these using M-x nnml-generate-nov-databases RET.

In a nutshell:

* Your .gnus contains this:
  (setq gnus-secondary-select-methods '((nnmh "")))

* You change it to read like this:
  (setq gnus-secondary-select-methods '((nnml "")))

* IMPORTANT!
  You _must_ prevent Gnus from fetching mail with the new config, lest
  Gnus might overwrite existing messages!
  (setq mail-sources nil)
  (setq nnmail-spool-file nil)

* Start Gnus.

* M-x nnml-generate-nov-databases RET

* Remove the two lines (setq mail-sources nil) and (setq
  nnmail-spool-file nil).

* Start Gnus again.

Does this work?

kai
-- 
I like BOTH kinds of music.