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ARCH LINUX GRUB2 WINDOWS 10 UEFI INSTALL
ARCH LINUX GRUB2 WINDOWS 10 UEFI CODE

# grub-install -target=x86_64-efi -efi-directory= esp -bootloader-id=GRUBĪfter the above install completed the main GRUB directory is located at /boot/grub/. Execute the following command to install the GRUB EFI application grub圆4.efi to esp/EFI/GRUB/ and install its modules to /boot/grub/x86_64-efi/.A directory of that name will be created in esp/EFI/ to store the EFI binary and this is the name that will appear in the UEFI boot menu to identify the GRUB boot entry. Choose a bootloader identifier, here named GRUB.Mount the EFI system partition and in the remainder of this section, substitute esp with its mount point.Then follow the below steps to install GRUB: For IA32 (32-bit) UEFI systems (not to be confused with 32-bit CPUs), replace x86_64-efi with i386-efi where appropriate.įirst, install the packages grub and efibootmgr: GRUB is the bootloader while efibootmgr is used by the GRUB installation script to write boot entries to NVRAM. The section assumes you are installing GRUB for x86_64 systems.

A GRUB/EFI examples article has been provided for such cases. The procedure described below is intended to work on a wide range of UEFI systems but those experiencing problems despite applying this method are encouraged to share detailed information, and if possible the turnarounds found, for their hardware-specific case.

UEFI firmwares are not implemented consistently across manufacturers.

If you use LVM for your /boot, you can install GRUB on multiple physical disks. Now you must #Generate the main configuration file. Where /dev/sd X is the disk where GRUB is to be installed (for example, disk /dev/sda and not partition /dev/sda1). (It will replace grub-legacy AUR if that is already installed.) Then do: It is advisable to use a partitioning tool that supports 1 MiB partition alignment to obtain this space as well as to satisfy other non-512-byte-sector issues (which are unrelated to embedding of core.img).

However a post-MBR gap of about 1 to 2 MiB is recommended to provide sufficient room for embedding GRUB's core.img ( FS#24103). Usually the post-MBR gap (after the 512 byte MBR region and before the start of the first partition) in many MBR partitioned systems is 31 KiB when DOS compatibility cylinder alignment issues are satisfied in the partition table. Master Boot Record (MBR) specific instructions To have the viewable partitions begin at the base consider adding this partition last. In fdisk or gdisk create a new partition starting at sector 34 and spanning to 2047 and set the type. Since the partition will not be regularly accessed performance issues can be disregarded, though some disk utilities will display a warning about it. The space before the first partition can also be used as the BIOS boot partition though it will be out of GPT alignment specification. When the partition is ready, install the bootloader as per the instructions below. This partition needs to be created before GRUB installation. This partition can be in any position order but has to be on the first 2 TiB of the disk. For parted set/activate the flag bios_grub on the partition.

ARCH LINUX GRUB2 WINDOWS 10 UEFI CODE

Select partition type code ef02 for gdisk.Select partition type BIOS boot for fdisk.However, UEFI systems still require an EFI system partition.Ĭreate a mebibyte partition ( +1M with fdisk or gdisk) on the disk with no file system and with partition type GUID 21686148-6449-6E6F-744E-656564454649. For UEFI systems this extra partition is not required, since no embedding of boot sectors takes place in that case.On GPT, however, there is no guaranteed unused space before the first partition. On a BIOS/MBR setup, GRUB uses the post-MBR gap for the embedding the core.img. The BIOS boot partition is only needed by GRUB on a BIOS/GPT setup.Read more on Partitioning#GUID Partition Table. Before attempting this method keep in mind that not all systems will be able to support this partitioning scheme.GRUB embeds its core.img into this partition. On a BIOS/ GPT configuration, a BIOS boot partition is required. 6.17 Device /dev/xxx not initialized in udev database even after waiting 10000000 microsecondsīIOS systems GUID Partition Table (GPT) specific instructions.6.1 F2FS and other unsupported file systems.5.2.3 Chainloading Windows/Linux installed in UEFI mode.5.2.2 Chainloading a disk's MBR or a partitionless disk's VBR.5.2 Using the command shell environment to boot operating systems.4.3.3.3 Windows installed in BIOS/MBR mode.4.3.3.2 Windows installed in UEFI/GPT mode.4.3.1.3 "Firmware setup" menu entry (UEFI only).4.2.2 Detecting other operating systems.4.2 Generate the configuration file using grub-mkconfig.4.1 Write the configuration from scratch.3 Filesystem-specific installation issues.1.2 Master Boot Record (MBR) specific instructions.1.1 GUID Partition Table (GPT) specific instructions.