Re: [sshfs] SSHFS - Mutt - Mailbox is Read-only

[Miklos S. <mi...@sz...>]

> I have switched from mounting some remote home directories with NFS to
> SSHFS. The problem that's occur right now is that Mutt can't delete or
> move e-mail message's. I get the error "Mailbox is Read-only"
> 
> I mount the directory with
> $ sshfs sircrow@minidragon:/home/sircrow/mail/ /home/sircrow/mail/ -o
> workaround=rename
> 
> I think the problem is mutt_dotlock but wondering if I add another
> mount options to resolve this.
> 
> $ ls -la /usr/bin/mutt_dotlock
> -rwxr-sr-x 1 root mail 7268 2006-10-30 22:04 /usr/bin/mutt_dotlock
> 
> $ ls -la /home/sircrow/mail/inbox
> -rw-rw---- 1 sircrow sircrow 11235 2007-05-05 18:11 inbox
> 
> I have tried several things to solve this, add the mail group to fuse,
> set the Sticky Bit, chown sircrow:mail /home/sircrow/mail/inbox, chmod
> o+rw /home/sircrow/mail/inbox, set group ID on execution from
> mutt_dotlock to sircrow, etceterra but nothing did help
> 
> So is the mount option the problem maybe?

SFTP doesn't support hard linking, which is sometimes used for
locking.  You can check this by running sshfs with the debug option:

   sshfs -d ...

If you see a LINK operation, which fails, then this is the problem.

I'm not sure there's a workaround for this.  Maybe you can configure
the method of locking in mutt?

Thanks,
Miklos