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4 bytes added ,  14:38, 25 January 2018
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Save a compressed disk image - we use the parallel gzip program called pigz:
 
Save a compressed disk image - we use the parallel gzip program called pigz:
  pigz -c /dev/sdX > usbstick.img.gz
+
  pigz -c < /dev/sdX > usbstick.img.gz
 
(time: ~180 secs speed: ~175MB/s, size of image: 1.8 GB)
 
(time: ~180 secs speed: ~175MB/s, size of image: 1.8 GB)
 
write compressed image back to a stick:
 
write compressed image back to a stick:
  unpigz -c usbstick.img.gz > /dev/sdX
+
  unpigz -c < usbstick.img.gz > /dev/sdX
 
(speed: ~ 98MB/s)
 
(speed: ~ 98MB/s)
  
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