Advanced Installation Option (Encrypted Root - Dgx Os 5 Or Later); Boot Into Live Environment (Dgx Os 5 Or Later) - Nvidia DGX A100 User Manual

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Installs the cache daemon but leaves it disabled by commenting out the RUN=yes line in /
etc/ default/cachefilesd entry.
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Creates a /raid directory, leaves it out of the file system table by commenting out the
containing /raid in /etc/fstab.
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Does not format the RAID disks.
When the installation is completed, you can repeat any configurations steps that you had
performed to use the RAID disks as other than cache disks.
You can always choose to use the RAID disks as cache disks later by enabling cachefilesd and
adding /raid to the file system table as follows:
1. Uncomment the #RUN=yes line in /etc/default/cachefiled.
2. Uncomment the /raid line in etc/fstab.
3. Run the following:
a). Mount /raid.
$ sudo mount /raid
b). Start the cache daemon.
$ systemctl start cachefilesd
These changes are preserved across system reboots.
9.4.2. Advanced Installation Option (Encrypted Root
- DGX OS 5 or Later)
Selecting this menu item provides the ability to encrypt the root filesystem of the DGX. It
should normally only be selected if this is desired.
Selecting Encrypted Root instructs the installer to encrypt the root filesystem. The encryption
is fully automated, and users will be required to manually unlock the root partition by entering
a passphrase at the console (either through a direct keyboard and mouse connection or
through the BMC) every time the system boots. During the First Boot process (see
Boot Setup), you are provided the opportunity to create your passphrase for the drive. The
passphrase can be changed later if needed.
9.4.3. Boot into Live Environment (DGX OS 5 or
Later)
The DGX OS installer image can also be used as a Live image, which means it boots and runs
a minimal DGX OS in system memory and does not overwrite anything on the disks in the
system.
While this Live mode does not load drivers, and is essentially a simple Ubuntu Server
configuration, it can be used as a tool for debugging a system if the disks on the system are
not accessible, or otherwise should not be touched.
When booting into the live environment, log in as root (a password is not needed). In a normal
operation, this option should not be selected.
NVIDIA DGX A100
Updating and Restoring the Software
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