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I'm upgrading from a Inland 256GB M.2 PCIe NVMe SSD to a HP EX900 NVMe PCIe M.2 500GB. In the past I've used Clonezilla to save an image on old drives as backup but this time it's struggling.

I booted Clonezilla from a USB and selected the disk-disk option like normal. It started out decently well at ~60 gigs/min but only made it to 10% before dropping to 600 mb/min. It's now been running for 8 hours and has '>65 hours left'. How on earth does it take so long for two drives with over 1gbs read/write speeds, connected on the same mobo to clone across a 16 core cpu? I didn't think this poor performance could be a reality.

I know there's nothing wrong with the drives as I used them both minutes before starting the clone. The 256 drive has ubuntu18 and the 500 drive did have win10. The Clonezilla stable version was downloaded only a few months ago.

What are the better options for cloning drives? Or where did I go so horribly wrong with my approach? Would going nvme -> image on old HDD -> new nvme be magically faster?

I'm looking for something that preferably:

  1. only copies sectors with written data (Clonezilla was making images of the entire drive when <50gb had been used)

  2. also copies the bootloader/grub (I'd prefer to skip mucking with this if possible)

  3. performs at speeds compliant with 2010's tech instead of 1990's

Thanks for the suggestions!

  • Not sure about "best" but dd is one option. For example: dd if=/dev/sda of=/dev/sdb bs=32M . Boot your machine off of an Ubuntu USB, open a terminal, do: sudo fdisk -l to get the drive letters associated with the drives you want to clone, and plug them in to the dd command above. Just be sure you assign the source and destination disks correctly! – marshki May 14 at 16:47
  • Thanks for the suggestion. Any idea if dd performs near expected speeds? I still can't get over clonezilla taking >24hrs for 250gb. – Garglesoap May 14 at 16:57
  • You could monitor the progress of dd using pv per this thread. – marshki May 14 at 17:12

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