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Re: Some help with dd backing up into an iso

On 03/07/2017 12:26 AM, Teemu Likonen wrote:
David Christensen [2017-03-06 21:05:31-08] wrote:

    # dd if=/dev/sda | gzip > myimage.img

What's the point of using dd?

    gzip </dev/sda >myimage.img

Habit -- I use 16 GB SSD or USB flash drives for my system drives, with 10% under-provisioning. 'dd' allows me to grab just the blocks I need (via the 'count' option). I also find it reassuring that 'dd' tells me how many blocks it copied.