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The Bootstrap FileThe information in this chapter is provided so that you may either create your own bootstrap files, or so that you can edit a bootstrap file produced by Bacula. However, normally the bootstrap file will be automatically created for you during the restore command in the Console program, or by using a Write Bootstrap record in your Backup Jobs, and thus you will never need to know the details of this file.The bootstrap file contains ASCII information that permits precise specification of what files should be restored. File FormatThe general format of a bootstrap file is:<keyword> = <value> Where each keyword and the value specify which files to restore. More precisely the keyword and their values serve to limit which files will be restored and thus act as a filter. The absence of a keyword means that all records will be accepted. Blank lines and lines beginning with a pound sign (#) in the bootstrap file are ignored. There are keywords which permit filtering by Volume, Client, Job, FileIndex, Session Id, Session Time, ... The more keywords that are specified, the more selective the specification of which files to restore will be. In fact, each keyword is ANDed with other keywords that may be present. For example, Volume = Test-001 VolSessionId = 1 VolSessionTime = 108927638directs the Storage daemon (or the bextract program) to restore only those files on Volume Test-001 AND having VolumeSessionId equal to one AND having VolumeSession time equal to 108927638. The full set of permitted keywords presented in the order in which they are matched against the Volume records are:
The Volume record is a bit special in that it must be the first record. The other keyword records may appear in any order and any number following a Volume record. Multiple Volume records may be specified in the same bootstrap file, but each one starts a new set of filter critera for the Volume. In processing the bootstrap file within the current Volume, each filter specified by a keyword is ANDed with the next. Thus, Volume = Test-01 Client = "My machine" FileIndex = 1will match records on Volume Test-01 AND Client records for My machine AND FileIndex equal to one. Multiple occurrences of the same record are ORed together. Thus, Volume = Test-01 Client = "My machine" Client = "Backup machine" FileIndex = 1will match records on Volume Test-01 AND (Client records for My machine OR Backup machine) AND FileIndex equal to one. For integer values, you may supply a range or a list, and for all other values except Volumes, you may specify a list. A list is equivalent to multiple records of the same keyword. For example, Volume = Test-01 Client = "My machine", "Backup machine" FileIndex = 1-20, 35will match records on Volume Test-01 AND (Client records for My machine OR Backup machine) AND (FileIndex 1 OR 2 OR 3 ... OR 20 OR 35). As previously mentioned above, there may be multiple Volume records in the same bootstrap file. Each new Volume definition begins a new set of filter conditions that apply to that Volume and will be ORed with any other Volume definitions. As an example, suppose we query for the current set of tapes to restore all files on Client Rufus using the query command in the console program: Using default Catalog name=MySQL DB=bacula *query Available queries: 1: List Job totals: 2: List where a file is saved: 3: List where the most recent copies of a file are saved: 4: List total files/bytes by Job: 5: List total files/bytes by Volume: 6: List last 10 Full Backups for a Client: 7: List Volumes used by selected JobId: 8: List Volumes to Restore All Files: Choose a query (1-8): 8 Enter Client Name: Rufus +-------+------------------+------------+-----------+----------+------------+ | JobId | StartTime | VolumeName | StartFile | VolSesId | VolSesTime | +-------+------------------+------------+-----------+----------+------------+ | 154 | 2002-05-30 12:08 | test-02 | 0 | 1 | 1022753312 | | 202 | 2002-06-15 10:16 | test-02 | 0 | 2 | 1024128917 | | 203 | 2002-06-15 11:12 | test-02 | 3 | 1 | 1024132350 | | 204 | 2002-06-18 08:11 | test-02 | 4 | 1 | 1024380678 | +-------+------------------+------------+-----------+----------+------------+The output shows us that there are four Jobs that must be restored. The first one is a Full backup, and the following three are all Incremental backups. The following bootstrap file will restore those files: Volume=test-02 VolSessionId=1 VolSessionTime=1022753312 Volume=test-02 VolSessionId=2 VolSessionTime=1024128917 Volume=test-02 VolSessionId=1 VolSessionTime=1024132350 Volume=test-02 VolSessionId=1 VolSessionTime=1024380678 As a final example, assume that the initial Full save spanned two Volumes. The output from query might look like: +-------+------------------+------------+-----------+----------+------------+ | JobId | StartTime | VolumeName | StartFile | VolSesId | VolSesTime | +-------+------------------+------------+-----------+----------+------------+ | 242 | 2002-06-25 16:50 | File0003 | 0 | 1 | 1025016612 | | 242 | 2002-06-25 16:50 | File0004 | 0 | 1 | 1025016612 | | 243 | 2002-06-25 16:52 | File0005 | 0 | 2 | 1025016612 | | 246 | 2002-06-25 19:19 | File0006 | 0 | 2 | 1025025494 | +-------+------------------+------------+-----------+----------+------------+and the following bootstrap file would restore those files: Volume=File0003 VolSessionId=1 VolSessionTime=1025016612 Volume=File0004 VolSessionId=1 VolSessionTime=1025016612 Volume=File0005 VolSessionId=2 VolSessionTime=1025016612 Volume=File0006 VolSessionId=2 VolSessionTime=1025025494
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