Linux /casper/vmlinuz file=/cdrom/preseed/ed maybe-ubiquity iso-scan/filename=$ quiet splash. You can look for the kernel arguments the same way, by printing the content of config files in boot & isolinux directories. Here, we can see that the kernel is vmlinuz and initrd is initrd, both in casper directory. r-r-r- 1 root root 11 Jul 31 22:13 filesystem.size r-r-r- 1 root root 3839 Jul 31 22:13 filesystem.manifest-remove r-r-r- 1 root root 2890 Jul 31 22:13 filesystem.manifest-minimal-remove r-r-r- 1 root root 56693 Jul 31 22:13 filesystem.manifest Lr-xr-xr-x 1 root root 1 Jul 31 22:17 ubuntu ->. r-r-r- 1 root root 231 Jul 31 22:17 README.diskdefines $ sudo mount -o loop ubuntu-20.04.1-desktop-amd64.iso /mnt Open the terminal and enter the lsblk command. Insert your USB Flash Drive and find out your USB. I'm using Arch Linux here to perform these operations. If not, first boot into a Linux environment (eg: Ubuntu live cd). I'm assuming that you've already done that. You need to boot into a Linux based operating system for this. I'll also tell you how you can boot the Linux ISO from an installed Linux OS later in this guide. So, follow this guide if you want to create one. In this guide, I'm trying to explain how you can install and configure grub2 bootloader on an USB thumb drive and then boot multiple Linux ISOs with it. This guide may help you with that situation. It's a headache to format your USB again and again just to try out a new Linux distribution or when you want to install another distribution, Distrohoppers can feel the pain. The ultimate guide to install and configure grub2 bootloader on USB Flash Drive to boot multiple ISO files. Any expert can shine some lights on this? Much appreciated, thank you.Multiboot USB Drive With GRUB2 Bootloader Grub-install: error: failed to get canonical path of see the last line. Grub-install: info: adding `hd1' -> `/dev/sda' from device.map. Grub-install: info: adding `hd0' -> `/dev/nvme0n1' from device.map. Mkfs.fat 4.1 mount /dev/sda1 mkdir -p cp -a /etc/grub.d cp /etc/default/grub grub-install -target=x86_64-efi -uefi-secure-boot -efi-directory=/efi/boot -bootloader-id=GRUB -removable -verbose ├─sda1 8:1 1 256M 0 part # This is the EFI partition, so Linux wont mount it On a mirrored system that fully supports NVMe boot with full Linux installed, I created the GTP flash disk, formated as EFI partition, mounted the EFI partition to /efi sudo -s It is preferred to use secure UEFI boot style.įor a guy who is completely new to Linux and GRUB, I already spent more than 10 hours on concept formation and initial research. I am trying to install GRUB to the USB as a bootloader so that I can boot to a system that normally can't boot to NVMe.
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