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How to install Grub on a raid system installation?
Instead, you should make a small (1MB) partition on each disk and RAID them together and set it as a GRUB boot partition (I’m not sure of the actual name). Set up your other RAID partitions (e.g. swap and /) and then the GRUB installer should find the boot area just fine.
Do you need RAID 1 for Ubuntu BIOS?
RAID needs both disks have the same partition layout, and Ubuntu needs at least 1 active boot partition for bios (grub). What I am doing: Now, you have NEW AVAILABLE DEVICES /md/xxx. Just do the partitioning as usual to add / (root), /boot, etc. You can also create it as LVM partition.
How many BIOS _ Grub partitions are there in Ubuntu 20.04?
It’s possible that there’s a bug in how the bios_grub partitions are created in the installer when using multiple disks as this behaviour is not consistent with version 20.04.1 or the current Ubuntu Server docs as referenced here .] You should now see two 1.000M bios_grub partitions created under USED DEVICES.
How to install Ubuntu Server from a bootable CD?
Create a bootable CD or USB and boot the new machine from it. Select Install Ubuntu Server. 2. Install with manual partitioning During install, at the Partition disks step, select Manual. If the disks contain any partitions, remove them. If any logical volumes are present on your drives, select Configure the Logical Volume Manager .
Why is Grub installation failed in Ubuntu 14.04?
Solving ‘grub-install /dev/sda’ failed error. sudo mount /dev/sdaX /mnt # Make “X” the partition that has Ubuntu installed (i.e. /dev/sda2). The grub boot loader fails during installation because the installation USB is still plugged in and the system is attempting to load the grub to the USB drive.
Where do I install Grub on my HDD?
“/dev/sda1 is the EFI boot partition (ESP partition) on my HDD I had read that GRUB bootloader must be installed to that partition.” What drive did you select during the installation of grub? You actually should select /dev/sda and not /dev/sda 1 as this is a partition. install-grub should than find the right partition by itself.
Which is the correct partition to install Grub on?
You actually should select /dev/sda and not /dev/sda 1 as this is a partition. install-grub should than find the right partition by itself. In your case that would then be /dev/sda1.
How big of a boot partition do I need for GRUB2?
Most disk partition utilities automatically perform this operation. On BIOS – GPT disks, explicit allocation of space for the GRUB2 BIOS boot partition must be provided. Create a disk at least 1 MB in size, type EF02 (BIOS boot partition).
How to make initramfs RAID aware in Grub?
The –mdadm option is needed to make the initramfs RAID-aware. The linux and initrd lines in /boot/grub/grub.cfg should now load the Linux kernel. Add the domdadm parameter to the Linux kernel command line in GRUB2. Without it the RAID set will not assemble and the Linux kernel will not find the root device.
What kind of insmod is needed for GRUB2?
insmod part_gpt (or insmod part_msdos) is needed otherwise GRUB2 will not be able to read the partition table. insmod mdraid1x is required for RAID v1.1 or higher. If using RAID v0.9 or v1.0 the RAID module might not be needed (mdraid09 for v0.9) because the RAID information is stored at the end of the partition.