* Hello everyone, I'm pretty new to NixOS and I'm trying to install it to do some tests and discover the OS. I followed the steps for installing it from an existing Linux system in the manual. The problem is, after the installation complete, GRUB doesnt get updated. I'm actually on Arch and it still uses the Arch's GRUB, not the NixOS one. I dont get it ... Below is my efibootmgr -v output : `Boot0000* Realtek PXE PciRoot(0x0)/Pci(0x1c,0x3)/Pci(0x0,0x0)/MAC(c07cd1afe053,0)/IPv4(0.0.0.00.0.0.0,0,0)RC Boot0001* Realtek PXE PciRoot(0x0)/Pci(0x1c,0x3)/Pci(0x0,0x0)/MAC(c07cd1afe053,0)/IPv6([::]:<->[::]:,0,0)RC Boot0002* GRUB HD(1,GPT,d37f513b-459c-41cc-94b6-2d3276163e8a,0x800,0x82000)/File(\EFI\GRUB\grubx64.efi) Boot0003* Windows Boot Manager HD(1,GPT,d37f513b-459c-41cc-94b6-2d3276163e8a,0x800,0x82000)/File(\EFI\Microsoft\Boot\bootmgfw.efi)WINDOWS.........x...B.C.D.O.B.J.E.C.T.=.{.9.d.e.a.8.6.2.c.-.5.c.d.d.-.4.e.7.0.-.a.c.c.1.-.f.3.2.b.3.4.4.d.4.7.9.5.}.................... Boot0004* ubuntu HD(1,GPT,d37f513b-459c-41cc-94b6-2d3276163e8a,0x800,0x82000)/File(\EFI\ubuntu\shimx64.efi) Boot0006* parrot HD(1,GPT,d37f513b-459c-41cc-94b6-2d3276163e8a,0x800,0x82000)/File(\EFI\parrot\grubx64.efi) Boot000B* Manjaro HD(1,GPT,d37f513b-459c-41cc-94b6-2d3276163e8a,0x800,0x82000)/File(\EFI\Manjaro\grubx64.efi) Boot000C* Fedora HD(1,GPT,d37f513b-459c-41cc-94b6-2d3276163e8a,0x800,0x82000)/File(\EFI\fedora\shim.efi)RC Boot000D* fedora HD(1,GPT,d37f513b-459c-41cc-94b6-2d3276163e8a,0x800,0x82000)/File(\EFI\fedora\grubx64.efi) Boot000E* Fedora HD(1,GPT,d37f513b-459c-41cc-94b6-2d3276163e8a,0x800,0x82000)/File(\EFI\fedora\shimx64.efi)`