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I recently installed Windows on a separate partition, and I have elementary OS already installed on my PC. So I want to dual boot.

I have followed this link to install GRUB again:
https://askubuntu.com/questions/83771/recovering-grub-after-installing-windows-7

Now both Windows and elementary OS are listed on GRUB menu, but Linux won't boot when I choose it. It boots in emergency mode with error:

[     3.662228] Couldn't get size:0x800000000000e
you are in emergency mode. After logging in, type "journalctl -xb" to view system logs, "systemctl reboot" to reboot, "systemctl default"  or "exit" to boot into default mode.
Press Enter for maintenance.
(or press Control-D to continue): _

Is my system corrupted or Linux GRUB not installed correctly?

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    Is that the complete error message you see? If not, can you please edit your question adding the whole text? – fra-san Jan 6 at 17:58
  • it's the complete error I see. followed by you are in emergency mode. to reboot type systemctl-reboot and so... – Stephan rog Jan 6 at 18:26
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    Please show the full text. – ctrl-alt-delor Jan 6 at 19:01
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    What happens if you press Control-D or Enter? To make any educated guess we would probably need to know, as a start, your OS version, if your system is BIOS or UEFI based and your partitions list. – fra-san Jan 6 at 21:29
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    The most upvoted answer to the AU question you mentioned seems to be about BIOS systems. Since you are on a UEFI system you should probably follow the advice from the possible duplicate linked there. (Also, please edit your question instead of adding information in comments. It improves readability (and comments are rather ephemeral)). – fra-san Jan 7 at 8:50

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