System I/O error on reconstruct after nuking cyrus.* files

[Andrew Morgan]

On Thu, 4 Oct 2007, Rick Kunkel wrote:

> Hello all,
>
> Is this normal?  I swear to have seen people suggesting trashing cyrus.*
> files and running reconstruct on the user, but I'm having no luck.  In
> this case, that was not what was attempted, but the end result is the
> same.  The cyrus.* files are gone.  See for yourself...
>
> -rw------- 1 cyrus mail   5166 2007-10-02 10:21 194.
> -rw------- 1 cyrus mail  13470 2007-10-02 12:30 195.
> -rw------- 1 cyrus mail 115255 2007-10-02 17:25 196.
> -rw------- 1 cyrus mail  27511 2007-10-02 23:47 197.
> -rw------- 1 cyrus mail  36699 2007-10-03 00:37 198.
> -rw------- 1 cyrus mail  23593 2007-10-03 11:40 199.
> -rw------- 1 cyrus mail   5020 2007-10-03 14:45 200.
> -rw------- 1 cyrus mail  10601 2007-10-03 21:32 201.
> -rw------- 1 cyrus mail  30683 2007-10-04 00:50 202.
> -rw------- 1 cyrus mail  59606 2007-10-04 02:33 203.
> -rw------- 1 cyrus mail  75449 2007-10-04 07:55 204.
> -rw------- 1 cyrus mail  10210 2007-10-04 09:38 205.
> -rw------- 1 cyrus mail 267003 2007-10-04 10:12 206.
> -rw------- 1 cyrus mail  80387 2007-10-04 10:57 207.
> -rw------- 1 cyrus mail  41473 2007-10-04 12:14 208.
> drwx------ 2 cyrus mail   4096 2007-10-04 18:08 Drafts
> drwx------ 2 cyrus mail   4096 2007-10-04 18:25 Junkmail
> drwx------ 2 cyrus mail   4096 2007-10-04 18:08 remote_pinerc
> drwx------ 2 cyrus mail   4096 2007-10-04 18:08 Sent
> drwx------ 2 cyrus mail   4096 2007-10-04 18:26 Trash
>
> OK.... Runnin cyradm as the the cyrus user...
> (We're running "unixhierarchysep: yes", BTW)
>
> localhost> lam user/darel*
> user/darel:
>   darel lrswipcda
>   cyrus lrswipcda
> user/darel/Drafts:
>   darel lrswipcda
>   cyrus lrswipcda
> user/darel/Junkmail:
>   darel lrswipcda
>   cyrus lrswipcda
> user/darel/Sent:
>   darel lrswipcda
>   cyrus lrswipcda
> user/darel/Trash:
>   darel lrswipcda
>   cyrus lrswipcda
> user/darel/remote_pinerc:
>   darel lrswipcda
>   cyrus lrswipcda
> localhost> reconstruct -r user/darel
> reconstruct: System I/O error
>
> I have tried about ever possible combination of things I can think of, to
> no effect.  Somewhere I saw touching new files with the same names and
> permissions, but that just generates an "Invalid Mailbox" error.  Also, if
> I move cache files from another directory in there and run reconstruct,
> everything works, but the existing messages in the directory can't be
> seen.  Does anyone have any suggestions?

Create an empty cyrus.header file first, then run reconstruct:

touch cyrus.header
chown cyrus:mail cyrus.header
reconstruct -x -f user.username
quota -f user.username

We use this method when restoring folders from backups.

 	Andy