While attempts are made to retain operating system settings during the upgrade, some settings may not be captured or may not be directly compatible with the latest version. Consult the customization settings guide and review the guidance for any changes made to the HyperScale X operating system prior to performing the upgrade.
Note that all settings required for basic functions are automatically retained including:
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Network interface configuration, including IP address, subnet mask, gateways
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Bonding and VLAN interface configurations
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DNS Servers
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Static Routes
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SSH Keys & Known hosts
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Timezone Configuration
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NTP Servers – NOTE: only defined NTP servers are retained. Any additional configuration in the NTP service configuration will not be retained.
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Multipathd configuration for external devices
System Settings Not Retained During Upgrade
The following table lists commonly used customizations that are not preserved during the upgrade. You must plan to capture these settings during the planning phase and restore them after the upgrade is complete.
| Configuration | Notes |
|---|---|
| Custom Login Banner/MOTD | |
| Active Directory/LDAP Integration | |
| Custom User Accounts | This applies to all manually created accounts, excluding cvbackupadmin. |
| Custom bash profiles and environment variables | |
| Custom crontab and scripts | |
| DNS Search Domains | |
| Custom Operating System Firewall Entries | Pre-defined firewall rules will be retained |
| SNMP Configurations | |
| Custom syslog and system audit configurations | |
| Custom fstab entries | All fstab entries required for CVFS operation are preserved. Additional entries created for other use cases such as data protection or recovery operations, or additional network/disk libraries will need to be manually restored. |