Creating a ZFS Root Pool

In current Solaris releases, you can install and boot from a ZFS root file system. Review the following root pool configuration information:

• Disks used for the root pool must have a VTOC (SMI) label and the pool must be created with disk slices

• A root pool must be created as a mirrored configuration or a single-disk configuration. You cannot add additional disks to create multiple mirrored top-level virtual devicess by using the zpool add command, but you can expand a mirrored virtual device by using the zpool attach command.

• A RAID-Z or a striped configuration is not supported

• A root pool cannot have a separate log device

• If you attempt to use an unsupported configuration for a root pool, you will see messages similar to the following:

  ERROR: ZFS pool <pool-name> does not support boot environments

  # zpool add -f rpool log c0t6d0s0 cannot add to 'rpool': root pool can not have multiple vdevs or separate logs

For more information about installing and booting a ZFS root file system, see Chapter 5, Installing and Booting a ZFS Root File System.