Before you upgrade, ensure that the following prerequisites are met:
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:
Back up the current running configuration (Release 10.5.0.x or earlier) to an external storage.
Reload the switch and watch for the ONIE boot menu.
Use the arrow keys to scroll and select
ONIE: Uninstall OS option.
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.
Table 1. OS10 releases and supported PCIe versionsOS10 releases and supported PCIe versions
OS10 Release
PCIe firmware version
SDK version
10.4.3.x
Less than or equal to 2.5
SDK-6.5.14
10.5.0.x and later
2.6
SDK-6.5.16
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:
Upgrade OS10 from Release 10.4.3.x to 10.5.0.9.
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.
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