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Backup with dar (view source)

Revision as of 23:19, 15 March 2020

970 bytes added ,  23:19, 15 March 2020
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[http://dar.linux.free.fr/ DAR homepage]
 
[http://dar.linux.free.fr/ DAR homepage]
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{{Note box|'''Important''' - Be aware of the concepts and issues as described in this section https://wiki.contribs.org/Backup_server_config#Backup_and_Restore_concepts.2C_issues_and_other_information}}
    
===Typical scenarios===
 
===Typical scenarios===
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each set".
 
each set".
   −
if you want a fixed number of increments in each set, then choose "Full backup
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If you want a fixed number of increments, less than a multiple of 7, in each set, then choose "Full backup
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is allowed on" = Anyday.
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is allowed on" = Everyday. eg Daily backups in each set = 6 will result in 1 Full backup and 5 incremental backups, on each full backup all backups are deleted including the incrementals.
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Create the deletion script
 
Create the deletion script
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  pico -w /opt/scripts/deletebkp1
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  nano -w /opt/scripts/deletebkp1
    
Enter the following (using your share name, user, pasword & domain)
 
Enter the following (using your share name, user, pasword & domain)
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Create the cron job
 
Create the cron job
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  pico -w /etc/cron.d/deletebkp1
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  nano -w /etc/cron.d/deletebkp1
    
Enter the following (setting the time & day to be just before your scheduled backup time), see below.
 
Enter the following (setting the time & day to be just before your scheduled backup time), see below.
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  mkdir -p /etc/e-smith/templates-custom/etc/dar/DailyBackup.dcf
 
  mkdir -p /etc/e-smith/templates-custom/etc/dar/DailyBackup.dcf
 
   
 
   
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  pico -w /etc/e-smith/templates-custom/etc/dar/DailyBackup.dcf/41go-into
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  nano -w /etc/e-smith/templates-custom/etc/dar/DailyBackup.dcf/41go-into
 
   
 
   
 
  --go-into opt
 
  --go-into opt
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Create custom template fragment to exclude the unneeded files and directories
 
Create custom template fragment to exclude the unneeded files and directories
 
   mkdir -p /etc/e-smith/templates-custom/etc/dar/DailyBackup.dcf
 
   mkdir -p /etc/e-smith/templates-custom/etc/dar/DailyBackup.dcf
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   pico -w /etc/e-smith/templates-custom/etc/dar/DailyBackup.dcf/45prune
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   nano -w /etc/e-smith/templates-custom/etc/dar/DailyBackup.dcf/45prune
 
    
 
    
 
   --prune home/e-smith/files/ibays/mirror/cgi-bin
 
   --prune home/e-smith/files/ibays/mirror/cgi-bin
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First, MOUNT THE BACKUP DRIVE (if required):
 
First, MOUNT THE BACKUP DRIVE (if required):
 
  mount /dev/sdc1 /media/BackupDrive1/
 
  mount /dev/sdc1 /media/BackupDrive1/
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You can mount the configured CIFS/SMB destination using<syntaxhighlight lang="bash" >
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mount -t cifs //$(config getprop backupwk SmbHost)/$(config getprop backupwk SmbShare) $(config getprop backupwk Mount) -o credentials=/etc/dar/CIFScredentials
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</syntaxhighlight>List available backups<syntaxhighlight  lang="bash" >
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find $(config getprop backupwk Mount)/$(config get SystemName).$(config get DomainName) -name "*.1.dar" | sed s/\.1\.dar$//
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</syntaxhighlight>
    
Then, RESTORE THE DIRECTORY:
 
Then, RESTORE THE DIRECTORY:
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{{Warning box|Be sure to use -R ./ (the dot) to restore in the current dir, otherwise you'll restore files/dirs in their original path}}
 
{{Warning box|Be sure to use -R ./ (the dot) to restore in the current dir, otherwise you'll restore files/dirs in their original path}}
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  −
      
You may also have to RESTORE ANY INCREMENTS:
 
You may also have to RESTORE ANY INCREMENTS:
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  dar -x /media/BackupDrive1/server.domain.local/set2/inc-004-201408132200.1.dar -N -R ./ -w -g home/e-smith/files/ibays/share_data/files
 
  dar -x /media/BackupDrive1/server.domain.local/set2/inc-004-201408132200.1.dar -N -R ./ -w -g home/e-smith/files/ibays/share_data/files
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{{Note box|Unmount the backup destination after any manual exploration:
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  umount $(config getprop backupwk Mount)}}
 
----
 
----
    
[[Category: Backup]]
 
[[Category: Backup]]
 
[[Category:Howto]]
 
[[Category:Howto]]
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