Nvidia DGX-2 SYSTEM User Manual page 23

$ sudo apt update
Upgrade to the latest version.
b)
$ sudo apt full-upgrade

Note: RAID 1 Rebuild in Progress - When the system is booted after restoring the
image, software RAID begins the process of rebuilding the RAID 1 array - creating a
mirror of (or resynchronizing) the drive containing the software. System performance
may be affected during the RAID 1 rebuild process, which can take an hour to
complete.
During this time, the command "nvsm show health" will report a warning that the RAID
volume is resyncing.
You can check the status of the RAID 1 rebuild process using "sudo mdadm -D
/dev/md0".
DGX-2 System User Guide
Setting Up the DGX-2 System
23