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I have Windows dual-boot with KDE Neon, and I can boot to each OS easily. But there are two boot partitions on my PC, though I set up for one when I install neon. I mount /boot into /dev/nvme0n1p1, and it contains both neon and the old windows (does not work) boot files. But when I boot into windows, it boots from /dev/sda2, which was created after troubleshooting boot options on windows. So can I merge them into one partition, /dev/nvme0n1p1?

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Minh Nhật
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  • It looks like your nvme0n1p1 got changed from ESP - efi system partition with esp flag to bios_grub which is only for old BIOS boot of grub. Change those flags with gparted and you may need to then reinstall grub in UEFI mode & repair Windows boot loader. Do not confuse a /boot partition (Linux format) with an ESP (FAT32 format). If you need more details. Use ppa version with Ubuntu live installer. Please copy & paste the pastebin link to the Boot-info summary report ( do not post report), do not run the auto fix till reviewed. https://help.ubuntu.com/community/Boot-Repair – oldfred Jul 08 '21 at 18:55
  • Hi @oldfred, and thanks for your help! I tried Boot Repair and here is the report: http://paste.ubuntu.com/p/SzWRGM2kJj/ – Minh Nhật Jul 10 '21 at 16:03
  • It still shows nvme0n1p1 as bios_grub. You must first use gparted and change that back to esp,boot flags, not bios_grub flag. Then rerun Boot-Repair as it does not show anything in a bios_grub partition.Your Neon UEFI entry is trying to use the ESP nvme0n1p1, but as bios_grub probably cannot use it. – oldfred Jul 10 '21 at 19:36
  • I changed nvme0n101 to boot, esp, but I still can't boot into neon, it stucks on grub command screen. – Minh Nhật Jul 11 '21 at 10:05
  • Here is the paste bin: http://paste.ubuntu.com/p/cgqHCRqsHD/ – Minh Nhật Jul 11 '21 at 11:08
  • You need Internet for Boot-Repair to download new copy of grub for a total reinstall of grub. You also show grub.cfg in sda1 which is NTFS. You never install grub to a partition. Report did not show fstab. Do you have /etc/fstab in your install. If from live installer you have to mount / to see install, and then /mountpoint/etc/fstab, otherwise you get fstab of live installer. – oldfred Jul 11 '21 at 14:05
  • Hi @oldfred, I can't understand much about your words. Sorry about that, and the boot repair still didn't help. Yes, I have /etc/fstab in the install. Here is the paste bin: http://paste.ubuntu.com/p/QJDxjPQb3K/ – Minh Nhật Jul 14 '21 at 09:56
  • See line 26: "Windows is hibernated, refused to mount." You need fast start up/hibernation off. https://askubuntu.com/questions/843153/unable-to-mount-windows-10-partition-it-is-in-an-unsafe-state & https://askubuntu.com/questions/145902/unable-to-mount-windows-ntfs-filesystem-due-to-hibernation LIne 46: "No nvme0n1p5/boot/efi/efi/ ubuntu/mint folder" Not sure if fixed, but still not showing fstab. This site is a question & answer site for Ubuntu. Neon is not an offical flavor of Ubuntu so you should ask in ubuntu forums other OS or stack exchange's Unix & Linux site. – oldfred Jul 14 '21 at 13:50

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