root - Specify the root device

Edit online

6.18 LPAR mode z/VM guest KVM guest

Use the root= kernel parameter to tell Linux® what to use as the root when mounting the root file system.

Format

Figure 1. root syntax

1 root=<rootdevice>

Examples

This example makes Linux use /dev/dasda1 when mounting the root file system: 
      root=/dev/dasda1