Laptop: HP probook 450 G
Main Hard drive: SSD 120 GB (Windows 10)
Secondary hard drive: 1TB (Ubuntu installed recently)
My laptop had Windows 10 on C drive and I tried to install Ubuntu on the other hard drive where I had created an extended partition for it (/, swap, home and root). After installation I could not boot into any operating system and it just goes into an infinite loop of restarting.
After some trial and error, I figured out I can select custom file from boot options and I managed to boot into Ubuntu by selecting the /EFI/Ubuntu/shimx64.efi file and it is working and booting me into Ubuntu directly, but there's no GRUB menu so I cannot get into my Windows.
GRUB menu entry
I have already tried updating my /etc/grub/40_custom and no luck. Also tried boot repair with MBR and without it (not relevant but tried).
Boot Repair
I have run boot repair multiple times with different configs, including to update the Windows files. You can access the boot repair report here.
Re-installing Windows
Finally I was trying to repair Windows again and it says drive is locked.
- Windows is installed and configured to boot via UEFI.
- Ubuntu is installed and configured to boot via UEFI.
So currently following is situation of HD
- HD0
- Partition1 - 800 MB reserved and contains /EFI/Microsoft/Boot file
- Partition2 - 110 GB windows installation with other programs
- HD1
- Partition 5,6,7,8 - ubuntu
- Partition 2 - ntfs windows file drive with my personal data
I have used a USB to boot into Windows troubleshoot command prompt and tried -/fixmbr, rebuildOS but it is not working; even scanOS can find the Windows installation folder.
Currently I have only UEFI is enabled in my BIOS settings
Can someone help me to boot into my windows installation?
Just to add if I don't select the Ubuntu shim file manually, my computer doesn't boot at all and it throws the following error only when I have my HD1 enabled as boot drive as well
System boot order not found. Initializing defaults
Creating boot entry "Boot0010" with label ubuntu for file "EFI\Ubuntu\shimx64.efi"
Reset System
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