Differences

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--- grub_repair [2025/03/13 06:17] – kkaragoz
+++ grub_repair [2025/03/13 06:53] (current) – kkaragoz
@@ Line 3: / Line 3: @@
 Add Missing Windows 11 Entry (Tested on Debian 12 + Windows 11 UEFI systems)
-Basic Fix (90% Success Rate)
+==== 1. Basic Fix (90% Success Rate) ====
 <code bash>
@@ Line 10: / Line 11: @@
 </code>
-Manual GRUB Entry (For NVMe Drivers)
+==== 2. Manual GRUB Entry (For NVMe Drivers) ====
-a. Identify Windows EFI Partition
+== a. Identify Windows EFI Partition ==
 <code bash>
@@ Line 22: / Line 23: @@
   * Example output: nvme0n1p1 vfat 100M /boot/efi
-b. Create Custom Entry
+== b. Create Custom Entry ==
 <code bash>
@@ Line 32: / Line 33: @@
 <code bash>
 menuentry "Windows 11" {
-insmod part_gpt
+   insmod part_gpt
-insmod chain
+   insmod chain
-insmod ntfs
+   insmod ntfs
-set root=(hd0,gpt1) #hd0 = first disk, gpt1 = first partition
+   set root=(hd0,gpt1) #hd0 = first disk, gpt1 = first partition
-chainloader /EFI/Microsoft/Boot/bootmgfw/efi
+   chainloader /EFI/Microsoft/Boot/bootmgfw/efi
 }
 </code>
-c. Apply Changes
+== c. Apply Changes ==
 <code bash>
 sudo update-grub
 sudo reboot
 </code>
+==== 3. Verify UEFI Mode ====
+Linux should show UEFI vars:
+<code bash>
+ls /sys/firmware/efi/efivars
+</code>
+Windows partition should have EFI files:
+<code bash>
+sudo ls /boot/efi/EFI/Microsoft/Boot
+</code>
+Expected file is **bootmgfw.efi**
+Troubleshooting Table
+"hd0 not found"
+  - Replace hd0 with actual disk number
+  - Use lsblk to confirm partition numbers
+No bootmgfw.efi
+  - Check Windows installation mode (must be UEFI)
+  - Disable "Secure Boot"
+GRUB menu not showing
+  - Hold Shift during boot
+  - Run sudo grub-install /dev/nvme0n1