reconstruct [ -C config-file ] [ -p partition ] [ -x ] [ -r ] [ -f ] [ -U ] [ -s ] [ -q ] [ -G ] [ -R ] [ -o ] [ -O ] [ -M ] mailbox... reconstruct [ -C config-file ] [ -p partition ] [ -x ] [ -r ] [ -f ] [ -U ] [ -s ] [ -q ] [ -G ] [ -R ] [ -o ] [ -O ] [ -M ] [ -u ] users... reconstruct [ -C config-file ] [ -p partition ] [ -x ] [ -r ] [ -f ] [ -U ] [ -s ] [ -q ] [ -G ] [ -R ] [ -o ] [ -O ] [ -M ] -V <version> [ -u users ] reconstruct [ -C config-file ] -m
reconstruct rebuilds one or more IMAP mailboxes. When invoked with the -m switch, it rebuilds the master mailboxes file. It can be used to recover from almost any sort of data corruption.
If reconstruct can find existing header and index files, it attempts to preserve any data in them that is not derivable from the message files themselves. The state reconstruct attempts to preserve includes the flag names, flag state, and internaldate.
reconstruct derives all other information from the message files.
reconstruct reads its configuration options out of the imapd.conf(5) file unless specified otherwise by -C. Any mailbox directory underneath
the path specified in the
partition-news configuration option is
assumed to be in news format.
reconstruct does not adjust the quota usage recorded in any quota root files. After running reconstruct, it is advisable to run quota(8) with the -f switch in order to fix the quota root files.
When upgrading versions of Cyrus software, it may be necessary to run reconstruct with the -V option, to rebuild indexes to a given version, (or max for the most recent).
Use the specified configuration file config-file rather than the default imapd.conf(5).
Search for the listed (non-existant) mailboxes on the indicated partition. Create the mailboxes in the database in addition to reconstructing them. (not compatible with the use of wildcards)
When processing a mailbox which is not in the mailbox list (e.g. via the -p or -f options), do not import the metadata from the mailbox, instead create it anew (this specifically affects at least the mailbox’s seen state unique identifier, user flags, and ACL).
Recursively reconstruct all sub-mailboxes of the mailboxes or mailbox prefixes given as arguments.
Examine the filesystem underneath mailbox, adding all directories with a
cyrus.headerfound there as new mailboxes. Useful for restoring mailboxes from backups.
Don’t stat underlying files. This makes reconstruct run faster, at the expense of not noticing some issues (like zero byte files or size mistmatches). “reconstruct -s” should be quite fast.
Emit less verbose information to syslog.
Don’t make any changes. This gives equivalent behaviour to chk_cyrus(8) where problems are reported, but not fixed.
Force re-parsing of the underlying message (checks GUID correctness). Reconstruct with -G should fix all possible individual message issues, including corrupted data files.
If two mailboxes exist with the same UNIQUEID and reconstruct visits both of them, -I will cause the second mailbox to have a new UNIQUEID created for it. If you don’t specify -I, you will just get a syslog entry telling you of the clash.
Perform a UID upgrade operation on GUID mismatch files. Use this option if you think your index is corrupted rather than your message files, or if all backup attempts have failed and you’re happy to be served the missing files.
Use this option if you have corrupt message files in your spool and have been unable to restore them from backup. This will make the mailbox IOERROR free and fix replication.
WARNING: this deletes corrupt message files for ever - so make sure you’ve exhausted other options first!
Ignore odd files in your mailbox disk directories. Probably useful if you are using some tool which adds additional tracking files.
Delete odd files. This is the opposite of -o.
Prefer mailboxes.db over cyrus.header - will rewrite ACL or uniqueid from the mailboxes.db into the header file rather than the other way around. This feature was introduced in version 3.0.
cyrus.indexminor version to a specific version. This can be useful for upgrades or downgrades. Use a magical version of max to upgrade to the latest available database format version.
Instead of mailbox prefixes, give usernames on the command line
reconstruct -r -f tech.support
Recursively reconstruct all mailboxes within the tech.support hierarchy, restoring any directories containing
tech.support uid 9634 rediscovered - appending tech.support uid 9635 rediscovered - appending tech.support uid 9642 rediscovered - appending tech.support tech.support.Archive tech.support.Spam
reconstruct -r -f tech.support.Archive.2%
Recursively reconstruct all mailboxes within the tech.support.Archive hierarchy with names begining with ‘2’, restoring any directories containing
tech.support.Archive.2001 tech.support.Archive.2002 tech.support.Archive.2003 tech.support.Archive.2004 tech.support.Archive.2005 tech.support.Archive.2006 tech.support.Archive.2007 tech.support.Archive.2008 tech.support.Archive.2009 tech.support.Archive.2010 tech.support.Archive.2011 tech.support.Archive.2012 tech.support.Archive.2013
reconstruct -r -f -u jsmith
Recusively reconstruct all mailboxes belonging to jsmith, restoring any directories containing
user.jsmith user.jsmith.Archive user.jsmith.Drafts user.jsmith.Lists user.jsmith.Outbox user.jsmith.Sent user.jsmith.Spam user.jsmith.Trash
The options -k (keep flags) and -g (clear GUID) have been deprecated in Cyrus version 2.4.
The -u and -V options were added in Cyrus version 2.5.
The -M option was added in Cyrus version 3.0.