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Groups > linux.debian.user > #187248

dd to clone a drive

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I have an existing drive near EOL (judging from the sounds). I got a 
replacement drive for it (same size).

I plugged the replacement into a USB port and started a byte-for-byte 
copy with

dd if=/dev/sda of=/dev/sdc

The process ran quietly for almost 30 hours with no discernable results 
so i killed it. Apparently, it had been running the whole time and 
resulted in approximately 300 of 500Gb copied. Is it 'usual' to have dd 
take upwards of 2 days to copy a drive ?

The source drive is a 500G 5400rpm WD, and the target is a 500G 7200rpm 
WD black.

Thanks for any input.

Regards

Jack

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dd to clone a drive Jack Dangler <tdldev@gmail.com> - 2017-09-26 16:00 +0200
  Re: dd to clone a drive Roberto C. Sánchez <roberto@debian.org> - 2017-09-26 16:20 +0200
  Re: dd to clone a drive Michael Stone <mstone@debian.org> - 2017-09-26 16:20 +0200
  Re: dd to clone a drive "Thomas Schmitt" <scdbackup@gmx.net> - 2017-09-26 16:40 +0200
    Re: dd to clone a drive Michael Stone <mstone@debian.org> - 2017-09-26 17:30 +0200
  Re: dd to clone a drive Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-09-26 16:50 +0200
  Re: dd to clone a drive Gene Heskett <gheskett@shentel.net> - 2017-09-26 17:40 +0200
    Re: dd to clone a drive Jack Dangler <tdldev@gmail.com> - 2017-09-29 13:40 +0200

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