HP Laptop doesn't boot legacy bootloader

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I've installed Ubuntu alongside Windows 10 on my HP Elitebook 840 G3. Now, I have two options in the boot menu:
UEFI - Windows Boot Loader
Legacy - SanDisk (Serial Number)
If I choose the Windows boot loader, Windows 10 starts immediately. But if I choose the Legacy entry, the laptop doesn't find an OS on the drive and just hangs there waiting for me to install an operating system. How can I tell the computer to let me boot Ubuntu and Windows?










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    Legacy boot can not read a GPT partitioined disk. install ubuntu in efi mode
    – ravery
    Feb 17 at 23:10














up vote
0
down vote

favorite












I've installed Ubuntu alongside Windows 10 on my HP Elitebook 840 G3. Now, I have two options in the boot menu:
UEFI - Windows Boot Loader
Legacy - SanDisk (Serial Number)
If I choose the Windows boot loader, Windows 10 starts immediately. But if I choose the Legacy entry, the laptop doesn't find an OS on the drive and just hangs there waiting for me to install an operating system. How can I tell the computer to let me boot Ubuntu and Windows?










share|improve this question

















  • 1




    Legacy boot can not read a GPT partitioined disk. install ubuntu in efi mode
    – ravery
    Feb 17 at 23:10












up vote
0
down vote

favorite









up vote
0
down vote

favorite











I've installed Ubuntu alongside Windows 10 on my HP Elitebook 840 G3. Now, I have two options in the boot menu:
UEFI - Windows Boot Loader
Legacy - SanDisk (Serial Number)
If I choose the Windows boot loader, Windows 10 starts immediately. But if I choose the Legacy entry, the laptop doesn't find an OS on the drive and just hangs there waiting for me to install an operating system. How can I tell the computer to let me boot Ubuntu and Windows?










share|improve this question













I've installed Ubuntu alongside Windows 10 on my HP Elitebook 840 G3. Now, I have two options in the boot menu:
UEFI - Windows Boot Loader
Legacy - SanDisk (Serial Number)
If I choose the Windows boot loader, Windows 10 starts immediately. But if I choose the Legacy entry, the laptop doesn't find an OS on the drive and just hangs there waiting for me to install an operating system. How can I tell the computer to let me boot Ubuntu and Windows?







dual-boot grub2






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asked Feb 17 at 21:17









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  • 1




    Legacy boot can not read a GPT partitioined disk. install ubuntu in efi mode
    – ravery
    Feb 17 at 23:10












  • 1




    Legacy boot can not read a GPT partitioined disk. install ubuntu in efi mode
    – ravery
    Feb 17 at 23:10







1




1




Legacy boot can not read a GPT partitioined disk. install ubuntu in efi mode
– ravery
Feb 17 at 23:10




Legacy boot can not read a GPT partitioined disk. install ubuntu in efi mode
– ravery
Feb 17 at 23:10















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