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My first post, asking for help...

I had (have) a dual boot with Ubuntu and Win10. An upgrade on win10 appeared, it said it was going to restart several times and after the first (or second, not sure) restart, I got the message: "error: no such partition. Entering rescue mode... grub rescue>". Right after restarting, can't boot to any OS.

After reading a bit around here, I tried with ls, I can see my two hdd and several partitions, but every time I try /ls (hd#,msdos#), I get the message "filesystem is unknown".

I am able to boot a linux from my usb key. Tried with testdisk, I see my partitions but I don´t know what to do next. I also tried with boot-repair, the automatic repair did not work. I got this url:

http://paste.ubuntu.com/p/rVpDmnBW3s/

Can somebody give me some help? Any hint will be appreciated. Thanks!!

Daniel Codorniu Cobo
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1 Answers1

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From your boot-repair output, I don't even see your Ubuntu install anywhere. However, you should be able to at least boot Windows from the "grub rescue>" prompt.

Try firing these three commands from grub rescue>

set root=(hd1,msdos2)
chainloader +1
boot
notorious.dds
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