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Selecting ubuntu from boot menu in hp takes me to windows

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I am trying to dual boot ubuntu 21.10 and windows. Windows was preinstalled in my computer. For ubuntu, i used rufus.(gpt,uefi(no cms), ntfs system and other default). Secure boot is enabled. I customized the partition, create a root partition 60gb, swap area 10gb and home partition the remaining space. then boot loader pointing to root partition 60gb one(/dev/nvme0n1p7). the installation was successful. It was failing previous when i used the install ubuntu alongside windows previously. Upon restart, it takes me to windows always no matter what i select from boot menu(f9 on hp).The order is also ubuntu at first. i went to boot menu by pressing esc key and f9 and selected ubuntu but it takes me to windows somehow. Can anyone help me? I have been trying to install since yesterday. I have gpt partition and boot mode uefi. I checked in windows.

ChanganAuto avatar
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When using "something else" you need to select *all* the necessary partitions and the ESP (EFI System Partition).
Nmath avatar
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If you can't get Ubuntu to boot after installation, then I would not say it was installed successfully. Your manual partitioning is probably invalid. Are you sure that you are installing UEFI to match Windows?
user16771164 avatar
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@Nmath BIOS mode is UEFI in windows. for rufus too, i selected UEFI. and the boot menu too displays UEFI for both windows and ubuntu.
user16771164 avatar
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@ChanganAuto I did not get your answer. I did make partition for root, home, boot. swap and a EFI too.
ChanganAuto avatar
us flag
boot ans swap aren't required and neither a separated home and only one ESP should be used. You don't create another one "for Ubuntu", you select and use the preexisting partition where the Windows bootloader is already installed. So, yes, a manual partitioning that is probably invalid as commented above.
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