On This Page
Creating a USB key for installing TufinOS on an appliance
In order to install TufinOS on a Tufin appliance, you must boot from a USB key that has the TufinOS image on it.
Prerequisite
- An empty USB flash drive with at least 32GB of space.
- A TufinOS image file. The image file can be obtained from the Download Center in the Customer Portal.
To prepare the USB key
-
Copy the compressed image to a Linux machine.
-
Verify the integrity of the downloaded compressed file. Run a checksum tool on the .tgz file and make sure that the output matches the checksum in the matching documentation item in the Download Center.
-
Decompress the downloaded file:
tar xzvf TufinOS-X.XX-XXXXXX-x86_64-XXXX-Final.usb.img.tgz
After decompression, you will have two files - the main .img file and a .sha256 checksum file.
-
Verify the integrity of the TufinOS image using the checksum file:
sha256sum -c TufinOS-X.XX-XXXXXX-x86_64-XXXX-Final.usb.img.sha256
-
Connect the USB flash drive to the Linux server.
-
Run the command:
dmesg | tail
-
At the end of the output of this command you will find the USB drive device name. Usually it is
/dev/sda
,/dev/sdb
, or/dev/sdc
. Copy that name. -
Erase the USB flash drive before burning the TufinOS image to the USB flash drive:
dd if=/dev/zero of=<usb flash drive device name> bs=512
-
Burn only the decompressed TufinOS image file to the USB flash drive:
dd if=TufinOS-X.XX-XXXXXX-x86_64-XXXX-Final.usb.img of=<usb flash drive device name> bs=512
Where
<usb flash drive device name>
is the name copied in previous step. This step may take a while; about 60 seconds or less. -
Flush the data to the disk to make sure that all data is copied correctly.
sync ; sync
-
Remove the USB key from the machine.
After TufinOS is installed, you can copy the TOS installation file to the /opt
partition of the appliance and install it.