Image Management

This chapter will guide you on how to check, update and manage the software version in your OSDx device. There could be some differences depending on the underlying hardware.

Installation

OSDx is always pre-installed in embedded platforms. It can only be installed on amd64/x86 bare metal servers. Here, you can find more information about this.

Upgrade

OSDx uses a single partition to store the system information. Depending on the running OSDx version, the system mounts the appropriate partition. There can be multiple images on a device, with free storage space being the limiting factor.

Tip

OSDx can be upgraded at any time in several ways: you can directly upgrade from an image file stored in a USB flash drive; by copying the ISO image to the OSDx system (e.g., using the SCP protocol); or by providing a reachable HTTP url with the image.

Example using SCP:

$ scp v3.1.1.1.iso admin@192.168.213.18:
admin@192.168.213.18's password:
v3.1.1.1.iso                  100%  270MB 246.0MB/s   00:01

image add command

Once we have stored the OSDx image in our system (or it is reachable using the HTTP protocol), we can upgrade it using the image add command.

Example using an image stored in the file system:

admin@osdx$ image add running://v3.1.1.1.iso force
using firmware update url: running://v3.1.1.1.iso

Starting upgrade to Teldat OSDx v3.1.1.1

Size check
Copying files
Copying current configuration
Setting up bootloader
Execute additional upgrade steps from new version
Cleaning up

Successful upgrade to Teldat OSDx v3.1.1.1

Run "reboot now" to boot from new version

This command includes some useful options:

• force: to allow a downgrade operation.

• local-address, local-interface and local-vrf: to specify source IP address, interface and VRF.

• mark and vrf-mark: to mark the generated traffic.

Important

For access point platforms, this mechanism is different because there are only two memory banks: one bank holds the current image and, the other one, the fallback image. Therefore, these devices only have capacity for two images and image add is the only command available.

image show command

image show can be used to display information about the available images on the OSDx system. It shows the current running image and the one that will be used in the next boot.

admin@OSDx$ image show
Teldat OSDx Installed images:

    v3.1.1.1
    v3.1.1.3 (running) (boot)

The command show version can also be used to display summarized information relative to the device, including the OS version:

admin@osdx$ show version

  OS vendor:                 Teldat
  OS name:                   OSDx
  OS version:                v3.1.1.1
  OS Linux kernel:           4.19.181
  OS built by:               jeknins@daphne
  OS build date:             Mon Sep 20 11:56:22 UTC 2021
  OS installation:           physical
  OS boot mode:              user
  License:                   BASE N-Cores-1

  Hardware vendor:           innotek GmbH
  Hardware model:            SDE
  Hardware OEM model:        VirtualBox
  Hardware version:          1.2
  Hardware S/N:              0
  Hardware UUID:             d45cddc3-ecc6-5776-877e-87749826dc82
  Hardware architecture:     amd64
  Hardware fwid:             iso
  Hardware base MAC:         08:00:27:fc:9d:2c
  Hardware cpu:              1 x Intel(R) Core(TM) i7-9700K CPU @ 3.60GHz (4 cores)

  Last reboot reason:        Performed by user

  Date:                      Tue 21 Sep 2021 11:16:00 AM UTC
  Uptime:                    3:12:01
  CPU load (1m, 5m, 15m):    0.00 0.00 0.00
  CPU usage % (1m):          0.62
  Storage usage (kB):        589868/20501072
  Memory usage (kB):         297480/2042816
  Temperature (ºC):          0
  Users logged in:           0
  Mode (current/next boot):  user/user

  Hostname:                  osdx

image delete command

image delete can be used to remove images from the system in order to free up disk space.

This command includes the following options:

• force: to avoid asking for confirmation.

• all: to delete all images except for the running one.

image boot command

This command can be used to switch the image that will be used for the next boot.

Example:

admin@OSDx$ image show
Teldat OSDx Installed images:

    v3.1.1.1
    v3.1.1.3 (running) (boot)
admin@OSDx$ image boot v3.1.1.1
admin@OSDx$ image show
Teldat OSDx Installed images:

    v3.1.1.1 (boot)
    v3.1.1.3 (running)

Fallback mechanism

OSDx incorporates a fallback mechanism that allows the system to be recovered from a failing boot-up. If for some reason, OSDx fails to boot-up after an upgrade, the system will rollback to a previous state where it was stable by changing the running image to the one in which the upgrade operation was performed.

When this rollback operation is performed, the device is rebooted automatically and, only if the boot-up process is successful, the following warning message is printed out: Recovered from upgrade failure.