IBM N Series Hardware Manual page 306

The directory /etc/software hosts installable ONTAP releases (Figure 21-1). The installation
images have been copied from a Windows client by using the administrative share
\\filer_ip\c$.
Figure 21-1 Windows client share
Starting with DOT 8, software images end with .zip and are no longer .exe or .tar files. The
software command must be used to install or upgrade DOT 8 versions. At the time of this
writing, only DOT 8.1 7-mode was available. Therefore all tasks were performed using this
software version. When the system reboots, press CTRL+C to access the first boot menu.
Generally, use the software command. Perform the following steps:
1. Use software get to obtain the Data ONTAP code from an http server. A simple freeware
http server is sufficient for smaller environments.
2. Perform a software list to verify that the code is downloaded correctly.
3. Run the software install command with your selected code level.
4. Run the download command.
5. Run reboot to finalize your upgrade.
Requirement: The boot loader must be upgraded. Otherwise, Data ONTAP 8 will not load
and the previously installed version will continue to boot.
Upgrade the boot loader of the system by using the update_flash command as shown in
Figure 21-2 on page 287.
Attention: Ensure that all firmware is up to date. If you are experiencing long boot times,
you can disable the auto update of disk firmware before downloading Data ONTAP by
using the following command:
options raid.background_disk_fw_update.enable off
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IBM System Storage N series Hardware Guide