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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.
How to install Ubuntu Server 18.04 on RAID1?
For the installation, I’m using the Live server installer for Ubuntu Server 18.04.3. It has less problems running from a USB. Proceed through the installer until you get to Filesystem setup. At this point, choose the Manual option: Delete all partitions on both drives you will be using for RAID1: Select a device and choose to Make Boot Device.
How do you install RAID1 on a hard drive?
Proceed through the installer until you get to Filesystem setup. At this point, choose the Manual option: Delete all partitions on both drives you will be using for RAID1: Select a device and choose to Make Boot Device. A Boot partition will appear
Where are the boot partitions located in Linux?
The boot partitions are mapped in /dev/md0, the rootfs in /dev/md1. md0 is formatted with ext2, md1 with XFS. (I understand that formatting has to be done on the md devices and not on sd – please tell me if this is wrong).
Which is better hardware RAID or software RAID?
Hardware RAID. Advantages: Hardware RAID is dedicated processing system, using controllers or RAID cards to manage the RAID configuration independently from the operating system. The RAID controller does not take processing power away from the disks it manages. Thus, more space and speed can be used to read and write data.
What are the advantages and disadvantages of RAID 0?
Advantages and Disadvantages of RAID 0 Advantages Disadvantages Easy-to-implement technology It is not fault-tolerant. A single drive Complete utilization of storage capacity Not an ideal choice for mission critical Good performance in both read and write