# Bare Metal Recovery for PPC Architecture Using 1-Touch for UNIX

You can perform a bare metal recovery of computers based on the PPC architecture by using the Commvault 1-Touch recovery solution. The Relax-and-Recover (ReaR) tool for Linux is integrated with the Commvault software to seamlessly create system state backups and data backups.

Note

- ReaR is recommended for only PPC architecture. For x86_64, use regular 1-Touch.

- Boot failures can occur on PowerPC (PPC) nodes if the `initrd` size in a ReaR-generated ISO exceeds 256 MB, preventing CVRescue.iso from booting. This is an architectural limitation of the PPC platform.

## Supported ReaR Versions

- ReaR 2.6

- ReaR 2.4

## Supported Linux Operating System Versions

Bare metal recovery using the ReaR tool is supported on the following Linux operating system versions:

### Red Hat Enterprise Linux/CentOS

- Red Hat Enterprise Linux/CentOS 7.0 with glibc 2.17.x

### SuSE Linux (SLES)

- SuSE Linux Enterprise Server 15 SP4 with glibc 2.31

- SuSE Linux Enterprise Server 15 SP3 with glibc 2.31

- SuSE Linux Enterprise Server 12.x with glibc 2.22.x

- SuSE Linux Enterprise Server 12 SP3 with glibc 2.22.x

- SuSE Linux Enterprise Server 12 SP2 with glibc 2.22.x

Note

The administrator must add the additional configuration changes relevant to the operating system in the default.conf file.

## Unsupported Hard Disk Configurations

Bare metal recovery of computers based on 4k hard disk is not supported because ReaR 2.4 version does not support 4k hard disk configuration.

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