![installing grub on usb installing grub on usb](https://miro.medium.com/max/1400/1*4nzZUPKRY7MuVZVYQazHPA.jpeg)
- #Installing grub on usb install#
- #Installing grub on usb manual#
- #Installing grub on usb code#
- #Installing grub on usb iso#
#Installing grub on usb iso#
Otherwise it would be necessary to prefix the path to ISO file with device identification when using the loopback command, for example loopback loop (hd1,2)$isofile. It is assumed that the ISO images are stored in the boot/iso/ directory on the same filesystem where GRUB is installed. To complete the configuration, a boot entry for each ISO image has to be added below this header, see the next section for examples. Do not use the same label as the Arch ISO for the USB device, otherwise the boot process will fail. The necessary UUID or label can be found using lsblk -f. Set imgdevpath="/dev/disk/by-label/ label_value" mnt/boot/grub/grub.cfg # path to the partition holding ISO images (using labels) Set imgdevpath="/dev/disk/by-uuid/ UUID_value"Īlternatively, use the device label instead of UUID: Set imgdevpath="/dev/disk/by-uuid/$rootuuid"
![installing grub on usb installing grub on usb](https://i.stack.imgur.com/sZt1d.png)
mnt/boot/grub/grub.cfg # path to the partition holding ISO images (using UUID) If the ISO images are on the same partition as GRUB, use the following to read the UUID at boot time: Alternatively, make the following changes in /etc/grub.d/40_custom or /mnt/boot/grub/custom.cfg and generate /mnt/boot/grub/grub.cfg using grub-mkconfig.Īs it is recommend to use a persistent name instead of /dev/sd xY to identify the partition on the USB drive where the image files are located, define a variable for convenience to hold the value.
#Installing grub on usb manual#
GLIM (GRUB2 Live ISO Multiboot): Manual configurationįor the purpose of multiboot USB drive it is easier to edit grub.cfg by hand instead of generating it. There are some git projects which provide some pre-existing GRUB configuration files, and a nice generic grub.cfg which can be used to load the other boot entries on demand, showing them only if the specified ISO files - or folders containing them - are present on the drive. # grub-install -target=i386-pc -recheck -boot-directory=/ DATA_MOUNTPOINT/boot /dev/ sdX3 Configuring GRUB Using a template
#Installing grub on usb install#
# grub-install -target=i386-pc -recheck -boot-directory=/ DATA_MOUNTPOINT/boot /dev/sd XĪs an additional fallback, you can also install GRUB on your MBR-bootable data partition:
![installing grub on usb installing grub on usb](https://i.imgur.com/EA9jxam.jpg)
# grub-install -target=x86_64-efi -recheck -removable -efi-directory=/ EFI_MOUNTPOINT -boot-directory=/ DATA_MOUNTPOINT/boot In most cases EFI_MOUNTPOINT will correspond to the /mnt/boot/EFI subdirectory on your mounted USB disk. Then, you can install GRUB for UEFI with: The GRUB configuration (-boot-directory) can be kept in the same place.įirst, you need to mount the EFI system partition and the data partition of your USB drive. You can now install GRUB to support both EFI + GPT and BIOS + GPT/MBR. Recovery/transformation command (? for help): xįinal checks complete. Place EFI GPT (0圎E) partition first in MBR (good for GRUB)? (Y/N): NĬreating entry for GPT partition #1 (MBR partition #1)Ĭreating entry for GPT partition #2 (MBR partition #2)Ĭreating entry for GPT partition #3 (MBR partition #3) Type from one to three GPT partition numbers, separated by spaces, to be added to the hybrid MBR, in sequence: 1 2 3 Just hit the Enter key at the below prompt and your MBR partition table will WARNING! Hybrid MBRs are flaky and dangerous! If you decide not to use one, Recovery/transformation command (? for help): h Hybrid MBR partition table creation example using gdisk: It will not find the partitions it expects to find. Without it, a BIOS MBR based system will not boot. Next you must create a hybrid MBR partition table. This partition can take up the rest of the space of your drive.