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I created a new partition on Windows from unallocated space (I already had 4 primary partitions, so it seems it created a dynamic partition), then when I reboot I enter in the GRUB Rescue.

I used instmod and then I could boot to Ubuntu.

I tried to install GRUB with boot-repair and from command line

Using boot repair

First I get the error

SFS detected. You may want to retry after converting Windows dynamic partitioning (SFS partitions) to a basic disk

Then I just continued with boot repair and

GRUB failed to install to the following devices:

/dev/sda

Command line

sudo update-grub
sudo grub-install dev/sda

I get the same GRUB failed to install as I mentioned above

Using bootable usb

I tried boot repair and I get the same errors as when using it on PC.

Windows is not booting, when trying I get:

error: device format "lad/a1eb ... /volume1" invalid must be (f|h)dN with 0<=N<128

My HD:

enter image description here

Vitor Abella
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1 Answers1

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What I did: I formated the disk and installed everything again. As I had backup of windows partition, it was just time loss.

Vitor Abella
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