18.5. Converting Root Disk to RAID1 after Installation

If you need to convert a non-raided root disk to a RAID1 mirror after installing Red Hat Enterprise Linux 7, see the instructions in the following Red Hat Knowledgebase article: How do I convert my root disk to RAID1 after installation of Red Hat Enterprise Linux 7?

On the PowerPC (PPC) architecture, take the following additional steps:

Update the Prep and boot flag on the first partition on both disks:

parted /dev/sda set 1 prep on
parted /dev/sda set 1 boot on
parted /dev/sdb set 1 prep on
parted /dev/sdb set 1 boot on

$ parted /dev/sda set 1 prep on
$ parted /dev/sda set 1 boot on

$ parted /dev/sdb set 1 prep on
$ parted /dev/sdb set 1 boot on

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Note

Running the grub2-install /dev/sda command does not work on a PowerPC machine and returns an error, but the system boots as expected.

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