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Mostly obsolete as Pi now has a utility to clone sd cards.
 
  
 
= Setup =
 
= Setup =
  
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This is a rough log of how I backed up / copied a raspberry pi os.  Will try again and make better notes.
 
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[[Linux Commands On Pi]]
 
  
 
Main sd card with another on an extension cable and card reader.
 
Main sd card with another on an extension cable and card reader.
  
  
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<pre>
 
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disk usage for shrink can do from file manager or from command line -- now a little under 5
 
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The df utility displays the disk space usage on all mounted filesystems.
 
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http://www.tecmint.com/how-to-check-disk-space-in-linux/
 
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df -h  #  this is the summary for shrinkage all disks may have to be mounted or not
 
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disk usage for shrink can do from file manager or from command line  -sh for summary and human format
 
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du -sh /home/tecmint
 
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sudo du -sh /  # still some Permission deniedsudo not enough
 
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sudo du -sh ~    #works, not much data sudo not required
 
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</pre>
 
  
 
= Links =
 
= Links =
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== copy ==
 
== copy ==
  
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   sudo dd if=/dev/mmcblk0  of=/dev/sdb status=progress
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   sudo dd if=/dev/mmcblk0  of=/dev/sdb
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command just sits there, status=progress makes it show some progress if opion implemented, it is new.  level to print stats periodically
 
  
 
= Then =
 
= Then =
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</pre>
 
</pre>
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= End Log =
 
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  [[Category:Arduino/RaspberryPi]]
 

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