Dell SmartFabric OS10 Installation, Upgrade, and Downgrade Guide

All platforms

• Ensure that you back up the configuration data and license files in an external storage.
• If you have VLT enabled, ensure that you make note of the X.509v3 security profile name to reinstall the X.509v3 certificate after upgrade. Use the show crypto cert command to view the security profile name.
• In a VLT deployment, if the default port speed of the switches is 100G, use 100G cable or optic for the VLTi connection. When you upgrade from 10.5.0.x to 10.5.2.x or later, if the cable or optic speed does not match the interface speed, the VLTi connection does not get established during upgrade preventing VLT minimum traffic loss upgrade.
• When a user is assigned to two SNMP groups, snmpwalk may return the Unknown user name error after switch reload. In this case, delete the SNMP user configurations before upgrading to Release 10.5.5.0P1 or later, and then reconfigure the SNMP user accounts after upgrading OS10 software.

S4100-ON platform

If you are upgrading OS10 from Release 10.5.0.x or earlier to Release 10.5.1.9 or later on an S4100-ON series platform, you must ensure that the realpath variable in OS10-Boot is set to /dev/sda4. To check the realpath variable, enter the system "realpath /dev/disk/by-label/OS10-BOOT" command from the OS10 CLI:

OS10# system "realpath /dev/disk/by-label/OS10-BOOT"

If the realpath variable is:

• Set to /dev/sda4, proceed with OS10 upgrade.
• Not set to /dev/sda4, you must uninstall the existing OS10 version and reinstall the new version of OS10. To do this:
  1. Back up the current running configuration (Release 10.5.0.x or earlier) to an external storage.

     OS10# copy running-configuration scp://userid:passwd@hostip/filepath/runningconfiguration.txt
     

  2. Reload the switch and watch for the ONIE boot menu.
  3. Use the arrow keys to scroll and select ONIE: Uninstall OS option.
  4. After you reload the switch again, from the ONIE boot menu, select the ONIE: Install OS option and install Release 10.5.1.9 or later release. See Installing SmartFabric OS10 section for more information.

S5200-ON platform

This section provides information about PCIe requirements and prerequisite checks that you must do before you upgrade OS10.

PCIe Requirements

The following table lists the OS10 releases and the recommended PCIe firmware version for that release.

If you are upgrading OS10 from 10.4.3.x to 10.5.1.9 or later, perform the following steps in the specified order:

1. Upgrade OS10 from Release 10.4.3.x to 10.5.0.9.
2. Check the version of the PCIe firmware. To check the PCIe firmware version, enter the system "sudo os10-switch-shell 'pciephy fw version'" command from the OS10 CLI:

   OS10# system "sudo os10-switch-shell 'pciephy fw version'"
   [sudo] password for admin:
   0:soc_flash_init: Flash supported ID = 0x20
   PCIe FW loader version: 2.5
   PCIe FW version: D102_08
   SAI.0>

   • If the PCIe FW loader version is 2.5—Upgrade the PCIe firmware before you upgrade OS10 to Release 10.5.1.9 or later. You can update the PCIe firmware using one of the following options:
     • From Diag OS—Dell Technologies strongly recommends that you update the PCIe firmware from the DIAG OS. To use this option, you need console access to the switch. See Upgrade PCIe firmware from DIAG OS for more information.
     • From OS10 hshell—If you do not have console access to the switch, you can upgrade PCIe from the OS10 hshell. See Upgrade PCIe firmware from OS10 hshell for more information. If you choose this option, you must shut down all the ports on the switch before you upgrade the PCIe firmware.
     After you upgrade the PCIe firmware, upgrade OS10 to Release 10.5.1.9 or later.
   • If the PCIe FW loader version is 2.6—Upgrade OS10 to Release 10.5.1.9 or later.

For a list of latest recommended firmware versions for the different platforms, see the Platform-specific ONIE Firmware Updater Release Notes on the Dell Technologies Support site.