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Miloš Đakonović
Asked: 2014-07-24 05:48:25 +0800 CST

Where to install GRUB 2 boot loader?

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I have: sda and sdb which partitions is forming mirror RAID

md0
md1
md2
md3

During update process, I was prompted where to install GRUB boot loader - on sda, sdb, md's or all together?

What choice is correct?

filesystems

1 Answers

  1. Best Answer

    Recommended way would be to install grub to a master boot record on each hard drive, that is sda and sdb.

    That way if one hard drive fails you will be able to boot from another one.

    Depending on your setup sometimes you may need to install grub to a specific partition rather than a master boot record. For example if you have another boot loader sitting on the master boot record and want to install grub to a partition then choose one of the md devices.

    Similarly on EFI systems you should install grub to EFI system partition on both hard drives.

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