How do I install GRUB on RAID software?
3 Answers. If the two disks are /dev/sda and /dev/sdb , run both grub-install /dev/sda and grub-install /dev/sdb . Then both drives will be able to boot alone. Make sure that your Grub configuration doesn’t hard-code disks like (hd0) , but instead searches for the boot and root filesystems’ UUIDs.
How do I install a GRUB file?
Installing GRUB2 on a BIOS system
- Create a configuration file for GRUB2. # grub2-mkconfig -o /boot/grub2/grub.cfg.
- List block devices available on the system. $ lsblk.
- Identify the primary hard disk.
- Install GRUB2 in the MBR of the primary hard disk.
- Reboot your computer to boot with the newly installed bootloader.
How to correctly install Grub on a soft RAID 1?
Make sure that your Grub configuration doesn’t hard-code disks like (hd0), but instead searches for the boot and root filesystems’ UUIDs. I’m not aware of support in Grub to declare two disks as being in a RAID-1 array so that grub-install would automatically write to both.
Is it possible to install Grub on two disks?
If this is even possible, of course. If the two disks are /dev/sda and /dev/sdb, run both grub-install /dev/sda and grub-install /dev/sdb. Then both drives will be able to boot alone. Make sure that your Grub configuration doesn’t hard-code disks like (hd0), but instead searches for the boot and root filesystems’ UUIDs.
Which is the First Partition in software RAID?
Booting with Software RAID almost always requires a separate /boot partition, especially with older versions of GRUB. Specifying “–metadata=0.90” when creating the RAID-1 partition for /boot is also required. /boot should be the first partition and kept small.
How to create a multi-device RAID 1 array?
It seems that in order to create a bootable multi-device RAID 1 array, you need to either create a separate non-RAID /boot partition, or use initramfs. Unfortunately, I don’t exactly understand what this entails. Firstly, I don’t want to create a separate non-RAID /boot partition, because the whole boot of booting from md0 is for the redundancy.