I'm looking for advice on safely cloning just the C: partition of my Windows installation to a target drive that's set up for dual-booting with Linux. I can't physically disconnect any drives during this process, so I'm trying to avoid breaking my bootloader.
Here's my setup:
- **Drive 1 (Source):** Contains my long-term, fully configured Windows OS, and I want to copy only the C: partition from this drive.
- **Drive 2 (Target):** Already has a Linux partition that must stay untouched, another Windows partition I don't want, and the EFI partition managing the boot process.
My goal is to perform a 1:1 clone of the C: partition from Drive 1 and replace only the unwanted Windows partition on Drive 2, ensuring the new Windows integrates smoothly with the existing EFI partition and Linux setup.
I have a few specific questions:
1. What's the safest tool to use for this clone, either from Windows or using a live USB?
2. How do I handle the UUID/disk signature conflicts upon reboot when both Windows partitions are present?
3. What's the best way to update the EFI/GRUB on Drive 2 so it boots the new Windows instead of the old one?
3 Answers
You might want to check out CloneZilla or RescueZilla for the cloning process. CloneZilla is pretty straightforward for part-to-part cloning. RescueZilla offers a more user-friendly interface. These tools can sometimes have issues with NTFS partitions, but they usually work without major errors. Just be cautious, as I've not tried this specific process myself.
For dealing with the disk signature issue, you might need to manually change the UUID of the cloned partition in Windows after cloning. As for updating GRUB, you’ll likely have to use a live Linux USB to update it so it recognizes the new Windows install. You can run commands in the terminal to update GRUB configurations.
Cloning is generally for complete drive backups or recovery, not just one partition over another with a different setup. If you manage to pull this off without encountering a Blue Screen of Death, that's a lucky win in my book!
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