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I managed to install Windows 10 on my laptop that already ran Ubuntu by following these steps, but I have a problem at the last step to rebuild GRUB.

I used boot-repair to try and fix the problem but without success, you can find the report here: http://paste.ubuntu.com/p/B8d2yMn8xQ/

Still, it detects both OS. But /dev/sda1 shows as empty, which I guess is part of the problem.

I have Boot Mode UEFI and Secure Boot OFF (don't know if it is relevant).

Now my laptop boots normally in Windows, but when I try Ubuntu it causes a dependency error in /home and I cannot boot.

I included a picture of the problem and tried the command cat /etc/fstab (see picture). I don't know how to interpret this and any help is greatly appreciated.

I think this question may also be related but I don't know what to modify in the fstab : Wrong fstab cause to fail boot UBUNTU Maybe this one also My pc is booting in to emergency mode: failed to mount /media/cdrom

picture of the problem

Thank you very much in advance

K7AAY
  • 17,202
Rambaldi
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  • Boot Mode = UEFI and Secure Boot = OFF is very good. Which release number of Ubuntu are you working with? – K7AAY Mar 23 '20 at 20:32
  • You have LVM, is it also encrypted? If not encrypted, you can skip those steps. Use LVM tools to mount your /home VGsys-home and run fsck on it. https://askubuntu.com/questions/262211/how-do-i-resize-an-encrypted-lvm-to-install-another-copy-of-ubuntu – oldfred Mar 23 '20 at 21:02
  • I do not know if it is encrypted. How can I know it? Release number of Ubuntu is 18.04 I believe. – Rambaldi Mar 23 '20 at 22:52

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