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GRUB detects an older Windows 8.1 setup instead of Windows 10

GRUB detects an older Windows 8.1 setup instead of Windows 10

J
94
07-26-2016, 11:00 PM
#1
Your setup involves several drives and a transition from Windows 8 to Linux. You're looking to reorganize your partitions so that only the 1 TB drive is used for data, GRUB recognizes the Linux installation, and you can boot from Windows 10 without issues. Here’s a clear approach:

1. **Remove old partitions** – Use Windows tools to delete the W8 partitions from the 500 GB SSD. Make sure you back up any important data before proceeding.
2. **Replace partitions** – After clearing the old partitions, install Linux on the 1 TB drive. If you want GPT partitions, ensure they’re created during installation.
3. **Transfer data** – Clone the 120 GB SSD to the 500 GB drive. This will create MBR partitions, which you’ll need to convert to GPT for GRUB compatibility.
4. **Update GRUB** – After transferring, update GRUB to recognize the new Linux installation on the 500 GB SSD. You may need to edit GRUB configuration files or use a tool like `grub-install` to map the new drive.
5. **Boot from Windows 10** – Once GRUB detects the Linux install, you should be able to boot from Windows 10 without issues.

This process avoids data loss and keeps your system functional. If you need step-by-step instructions for any of these steps, let me know!
J
JigglypuffJosh
07-26-2016, 11:00 PM #1

Your setup involves several drives and a transition from Windows 8 to Linux. You're looking to reorganize your partitions so that only the 1 TB drive is used for data, GRUB recognizes the Linux installation, and you can boot from Windows 10 without issues. Here’s a clear approach:

1. **Remove old partitions** – Use Windows tools to delete the W8 partitions from the 500 GB SSD. Make sure you back up any important data before proceeding.
2. **Replace partitions** – After clearing the old partitions, install Linux on the 1 TB drive. If you want GPT partitions, ensure they’re created during installation.
3. **Transfer data** – Clone the 120 GB SSD to the 500 GB drive. This will create MBR partitions, which you’ll need to convert to GPT for GRUB compatibility.
4. **Update GRUB** – After transferring, update GRUB to recognize the new Linux installation on the 500 GB SSD. You may need to edit GRUB configuration files or use a tool like `grub-install` to map the new drive.
5. **Boot from Windows 10** – Once GRUB detects the Linux install, you should be able to boot from Windows 10 without issues.

This process avoids data loss and keeps your system functional. If you need step-by-step instructions for any of these steps, let me know!

_
_Zayn_
Member
60
07-27-2016, 03:13 PM
#2
You need the GPT on the boot drive for EFI boot. Is this what you meant by legacy boot?
_
_Zayn_
07-27-2016, 03:13 PM #2

You need the GPT on the boot drive for EFI boot. Is this what you meant by legacy boot?

B
black_blaziken
Junior Member
14
07-27-2016, 11:23 PM
#3
I'd look into Windows, Linux, or the UEFI settings. Since you've updated nearly all your hardware since the original Windows installation, checking these areas would help confirm compatibility.
B
black_blaziken
07-27-2016, 11:23 PM #3

I'd look into Windows, Linux, or the UEFI settings. Since you've updated nearly all your hardware since the original Windows installation, checking these areas would help confirm compatibility.

R
Rodri_Mendes
Member
223
07-28-2016, 12:29 AM
#4
It's interesting, I came across the same situation yesterday. I set up a Windows 10 installation and it kept trying to start!
R
Rodri_Mendes
07-28-2016, 12:29 AM #4

It's interesting, I came across the same situation yesterday. I set up a Windows 10 installation and it kept trying to start!