Hello, I'm trying to install Crux unfortunately with no sucess until now. I installed the UEFI version and there is no success with grub or directly with EFI Stub. After a reboot I get the grub shell. I did the following: I partitionned my hard disk with fdisk. After the partitionning I got: Disk /dev/nvme0n1: 465.8 GiB, 500107862016 bytes, 976773168 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disklabel type: gpt Disk identifier: 2D20A0A0-716B-4E73-84A4-473759D6509A Device Start End Sectors Size Type /dev/nvme0n1p1 2048 1128447 1126400 550M EFI System /dev/nvme0n1p2 1128448 7419903 6291456 3G Linux swap /dev/nvme0n1p3 7419904 91305983 83886080 40G Linux filesystem /dev/nvme0n1p4 91305984 976773134 885467151 422.2G Linux filesystem I have formatted the first partition "/dev/nvme0n1p1" with ----------------------------------- # mkfs.fat -F 32 /dev/nvme0n1p1 --------------------------------------------- With the setup I have installed grub2-efi and efibootmgr. Before chrooting, I have mounted the EFI partition: ------------------------------ # mount /dev/nvme0n1p1 /mnt/boot/efi ------------------------------------------- After the chroot, I have edited the /etc/fstab to mount the EFI partition to /boot/efi. I have installed grub with the following commands: ----------------------------------------- # grub-install /boot/efi # grub-mkconfig -o /boot/grub/grub.cfg --------------------------------------------- I have the following in my folder /boot/efi: /boot/efi/: total 8 drwxr-xr-x 3 root root 4096 Dec 24 08:57 EFI drwxr-xr-x 2 root root 4096 Dec 24 07:25 linux /boot/efi/EFI: total 4 drwxr-xr-x 2 root root 4096 Dec 24 10:32 grub /boot/efi/EFI/grub: total 136 -rwxr-xr-x 1 root root 136704 Dec 24 09:46 grubx64.efi /boot/efi/linux: total 6560 -rwxr-xr-x 1 root root 2344508 Dec 24 08:22 System.map -rwxr-xr-x 1 root root 4366896 Dec 24 08:22 vmlinuz-4.14.40.efi I have also a kernel in: boot/: total 6560 -rwxr-xr-x 1 root root 2344508 Dec 24 08:22 System.map -rwxr-xr-x 1 root root 4366896 Dec 24 08:22 vmlinuz What I noticed and don't know: - when I installed grub, I got a warning that /usr/share/locale doesn't exists. I have created an empty folder. - The grub configuration file "grub.cfg" is not on the same partition as grubx64.efi, because it's in /boot/grub/grub.cfg. Other files for grub are also in that folder. Is it a problem ? - I have some doubts, but I changed a few options in the kernel. All options for uefi where compiled in the kernel, not as module. I have also set the command line argument in the kernel with a PARTUUID: [*] Built-in kernel command line (root=PARTUUID=55898d79.........e0709) Built-in kernel command string Do I need to create an initramfs ? All related UEFI options are not compiled as modules. By the way the PARTUUID is the partition of root, not my ESP partition. Finally, the output of efibootmgr: ---------------------------------------------- BootCurrent: 0003 Timeout: 1 seconds BootOrder: 0002,0001,0003,0004,0000 Boot0000* Windows Boot Manager VenHw(99e275e7-75a0-4b37-a2e6-c5385e6c00cb)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.}...a................ Boot0001* Linux 4.14.40 EFI Stub HD(1,GPT,03c08c95-4adc-cf44-94af-95b81162c304,0x800,0x113000)/File(\efi\linux\vmlinuz-4.14.40.efi) Boot0002* grub HD(1,GPT,03c08c95-4adc-cf44-94af-95b81162c304,0x800,0x113000)/File(\EFI\grub\grubx64.efi) Boot0003* UEFI: SanDisk Extreme 0001 PciRoot(0x0)/Pci(0x14,0x0)/USB(16,0)/CDROM(1,0xeb94,0x4000)..BO Boot0004* UEFI: SanDisk Extreme 0001, Partition 1 PciRoot(0x0)/Pci(0x14,0x0)/USB(16,0)/HD(1,MBR,0x20d53d7b,0xeb94,0x1000)..BO ------------------------------------------------------- Without the installation media it boots to Boot0002, the string "03c08c95-4adc-cf44-94af-95b81162c304" is the PARTUUID from the ESP partition. I don't know if it changes without the installation media. At the moment, I'm stuck, thank you for your help!