On 28 September 2016 at 00:37, steve-ALUG@hst.me.uk wrote:
Ah, if you want it to boot, you're right, cp & rsync won't do. Just bite the bullet and dd it, all of it.
The frustrating thing is that if I booted from a clonezilla boot disk then it would handle this more intelligently using the same tools I can use from my desktop if only I knew how to work them!
I left it imaging yesterday in case dd was the best option so I'm about 50% complete now, so I guess I'll just have to leave it to finish until tomorrow.
But add the bs option at the end. e.g. bs=4M
Yep, I've actually got bs=100M although that's probably overkill. I'm getting about 1GB/min across USB2 though so I reckon that's about as good as it'll get (and both disks are in a 4-disk enclosure on that one USB connection, so it's not even using two ports).
If you have an up-to-date version of dd, you can add |status=progress to show the progress of the copy.
I didn't know that, but I'm using "sudo killall -USR1 dd" periodically to check progress that way.
Thanks for the suggestions.