On Fri, Dec 15, 2017 at 11:21 AM, Sudhir Khanger <ml@xxxxxxxxxxxxxxxxx> wrote: > Hello, > > I have to install Windows 8.1 so that Dell technician can troubleshoot my system. I have not installed Windows in years, so, I wanted to confirm the process before destroying my system. > > I will create a 50GB partition for Windows 8.1. I installed Fedora with automatic partitioning. As a result, home partition which I will resize is in middle. Is it okay to resize the partition in the middle to install Windows? Only if you use the Microsoft installer, e.g. from an ISO downloaded from microsoft.com. If it's a restore image that came with the Dell, it will obliterate everything on the drive. No options. > Once I have installed Windows, it will probably overwrite Grub and possibly UEFI entries. That only happens on BIOS firmware. On UEFI, the Windows bootloader will go into its own directory on the ESP, and get its own NRAM entry set as default. To reboot Fedora, you'll hold shift when you choose Reboot in Windows, and you'll get a menu, one option will be Troubleshooting, and another option in there hopefully is related to booting off other media. The exact location has changed a bit between 8.0, 8.1, and 10 so I can't tell you where it is in there exactly but I know I can choose Fedora (i.e. GRUB) from within one of the Windows 10 shift+reboot Troubleshooting submenus. This does not stick though, it's a one time boot so once you're back to Fedora you'll look at efibootmgr and change the bootorder with --bootorder, making it explicit (all boot entries listed in the order you want them attempted, starting with the Fedora boot entry). > Do I simply have to reinstall the Grub for Fedora to start detecting it as a second OS. > > grub2-install /dev/nvme0n1 Please do not do this on UEFI, it's a bad idea. > grub2-mkconfig -o /boot/efi/EFI/fedora/grub.cfg This won't hurt anything but it also shouldn't be necessary. You will need to use efibootmgr to make the Fedora boot menu entry first in the bootorder, however. -- Chris Murphy _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx
