The new 10.20 features added for the system installation process are:
VxFS -- The root LVM volume (/) can be configured with the
VxFS file system. This is the default when choosing
the LVM with the VxFS option.
DHCP -- Support for obtaining and allocating IP address and
networking information via the DHCP (Dynamic Host
Configuration Protocol). If a DHCP server is
available, systems doing installs will contact
the server to get a default set of network information.
Locale -- The system's language locale will be set
depending on which language bundle is chosen during
the installation.
Striping -- Using LVM, you can choose to configure
multiple disks in same volume group with data
striping for increased performance.
Keywords -- Several new keywords are added to the configuration
file syntax for setting the keyboard
language (kbdlang), SD secrets file (sd_secrets),
and hook for running a script prior to running SD
(pre_sd_cmd). See the instl_adm(4) manpage
for details.