Re: migrating drives on UEFI systems

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On 6/21/20 10:42 PM, Tim via users wrote:
Hi,

On the old BIOS systems, if I wanted to swap hard drives on a system
(e.g. move over to a bigger one), I could clone it off-line, then swap
over, and it'd just work.

Should I expect a UEFI system to do it that simply?

Yes, it should be even easier than non-UEFI. No MBR and hidden boot sectors to worry about.

I just did this with my son's laptop a few days ago. I booted a live image and used gparted to shrink and copy partitions from an HDD to an SSD. Fedora booted up just fine, but Windows is really unhappy.

And do secure boot options throw any spanners in the works, too?

No, you're not changing any signatures.  It's still all the same files.

I tried this last night, and it didn't want to boot.  I cloned it using
"dd if=/dev/sda of=/dev/sdb" while booted from a gparted ISO on a USB
flashdrive (current release). Shut down.  Unplugged the old drive.
Rebooted.

If it makes any difference, I can't recall if I plugged it into the
same SATA port on the motherboard.  It's a board with 6 sockets, and
I'm only using two of them (DVD and HDD).

That might be the problem. If you run "efibootmgr -v" you'll see which drive it's going to try to find it on. You might have ended up with the DVD and HDD in a different order.
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