Asheesh Laroia a écrit :

On Tue, 28 Oct 2008, Mathieu Kretchner wrote:

...

Hello,

I would like to know if it's possible to subscribe to a folder that is on a read only File System ?

We have a snapshot mechanism that create a .snapshot directly in the user folder. This is done by our NAS and we would like to give an access to this backup to our users.

If you tell Dovecot to store the cache and indexes elsewhere, that should work fine. I haven't tried it, though.

-- Asheesh.

My problem is that dovecot complain when I subscribe to the folder in read only I've found this (after my e-mail to this list, forgive me :) ) http://markmail.org/message/l7rybsx27ofq57cp#query:dovecot%20read%20only+pag...

But could someone tell me if it's working now ? Because it's a little bit old !

On Wed, 2008-10-29 at 17:01 +0200, Timo Sirainen wrote:

On Wed, 2008-10-29 at 10:10 +0100, Mathieu Kretchner wrote:

...

My problem is that dovecot complain when I subscribe to the folder in read only

What does it complain?

If the problem is that you've a namespace created for a read-only partition, you can simply set subscriptions=no.

If that doesn't help, post your dovecot -n output and describe your setup.

On Wed, 2008-10-29 at 16:21 +0100, Mathieu Kretchner wrote:

Oct 29 16:08:58 myserver dovecot: IMAP(imap1): utime(/data/maildir/i/imap1/.backup/tmp) failed: Read -only file system

Hmm. This isn't really a problem. Perhaps I should even hide this error message.

Oct 29 16:08:58 myserver dovecot: IMAP(imap1): open(/data/maildir/i/imap1/.backup/dovecot-uidlist.lo ck) failed: Read-only file system Oct 29 16:08:58 myserver dovecot: IMAP(imap1): file_dotlock_create(/data/maildir/i/imap1/.backup/dov ecot-uidlist) failed: Read-only file system

This is a problem. Dovecot must be able to create dovecot-uidlist file. You could place all the control files to a different directory though, for example:

mail_location = maildir:~/Maildir:CONTROL=~/Maildir/dovecot:INDEX=~/Maildir/dovecot

Indexes don't really matter, but performance is better if they exist.

Anyway if you already have users using the mails, you should copy/move all the dovecot* files to ~/Maildir/dovecot/ under the correct directories. dovecot-uidlist and dovecot-keywords most importantly, otherwise the users will redownload all their mails and lose any message keywords they've set.