On Wed, Sep 04, 2019 at 04:20:14PM +0100, Patrick O'Callaghan wrote:
On Wed, 2019-09-04 at 21:55 +0800, Ed Greshko wrote:
On 9/4/19 9:16 PM, Dave Ihnat wrote:
On 4 Sep at 01:12, Ed Greshko ed.greshko@greshko.com wrote:
Of course a dd copy may be rather time consuming and space consuming with no apparent advantage.
A lot less time consuming if you use the "bs=" option. Haven't seen anyone mention that; I believe the default is still the old Unix 512b, painful.
Very good point. And, yes, the default is still 512.
For a USB drive it probably doesn't make much difference. Output will be buffered and speed is limited by the USB interface.
poc
I tend to use "bs=10M", which won't make it any faster, unless possibly you're using USB3.x devices on a USB3.x port.
Fred