Thanks for your advise, to be honest I don't remember what I did! but
now it is ok!
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https://bugs.launchpad.net/bugs/1761759
Title:
bootloader beside Win10 and Fedora
To manage notific
You tried to install grub to /dev/dm-0, which is a logical volume. It
must be installed to a physical disk, such as /dev/sda.
** Changed in: grub-installer (Ubuntu)
Status: New => Invalid
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