Sun Microsystems Solaris 7 11/99 Hardware Platform Manual page 196

This section contains instructions on how to perform an upgrade from an earlier
version of the Solaris operating environment to the Solaris 7 11/99 version. The
upgrade includes the following tasks:
Preparing the domain for the upgrade
Checking the domain network information
Setting up the SSP
Bringing up the domain
Upgrading the boot image
Configuring the Solaris operating environment
Configuring the OBP environment
Bring up the domain after the upgrade to Solaris 7 11/99
Upgrading the Computer Systems supplements packages
Configuring the Network Time Protocol packages
Finishing the upgrade
Caution – To upgrade a domain to Solaris 7 11/99, the /usr partition on your boot
disk must be larger than 653-Mbytes. If the partition is smaller than 653-Mbytes, you
must repartition the drive before you attempt to upgrade the domain. Sun
Microsystems suggests that you use the disk-partition sizes in
introduction of the 64-bit kernel into the Solaris operating environment, the
environment's size has grown significantly; thus, if you are still using a single 2.1-
Gbyte disk as your boot disk, you should migrate to a 4.2-Gbyte, or larger, disk at
some point in the near future.
Always back up an existing domain before you use the upgrade option in the
suninstall utility. The safest backup to perform is a level 0 dump of the file
systems connected to the domain being upgraded. If you do not have an established
backup procedure, see the System Administration Guide.
Caution – In Solaris 2.5.1, the kernel resides in
/platform/sun4u1/kernel/unix. If you override the boot file location by
explicitly setting it to kernel/unix, you can successfully upgrade the Solaris
software, but you will not be able to boot the domain.
The upgrade option in the suninstall utility determines how the Solaris software
is copied to the disk. It merges the new version of the Solaris software with the
existing files on the domain's disk, saving as many local modifications as possible.
Note – The upgrade option may require deleting software packages if the disk is
full; this requires knowledge of packages and dependencies.
You do not need to back out installed patches before you perform the upgrade.
184 Solaris 7 11/99 Sun Hardware Platform Guide • November 1999
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