Am Mittwoch, 5. Februar 2020, 10:18:01 CET schrieb Klaus Singvogel: Try the "Supergrub"-Disk. Or you can also use "Trinity Rescue Kit", on which is also a good desription, how to restore grub or lilo. If you get the Trinity-Livesystem started with its own grub (there is an option in its boot menu), and you have set the correct root device (i.e. grub command "root=/dev/sda1"), then you can just do an "update-grub" in the started debian and you are gone. I suppose, there are many more ways, to restore grub, but these arer mine. Best regards Hans > Hello, > > depending on your hardware, and how you installed it: GRUB in MBR or as > active partition. > > At my desktop PC, I've to configure the (UEFI-)Bios that Debian is again to > be choosen as first booted system. > > On my Laptop... well, there is no windows. :-) > > Regards, > Klaus. > > kaye n wrote: > > Hello Friends! > > > > Suppose I installed Debian first followed by Windows 10. The GRUB will > > be > > overwritten, correct? > > > > How do I get it back? Do I boot a Debian live USB? Does a Debian live USB > > have a tool where I can easily install GRUB in the mbr? (then it would > > detect the windows os, if not then I execute sudo update-grub) > > > > Thank you for your time. > > kaye
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