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# Upgrading the System Software on a C Series Controller

You can upgrade all the system software or the software changes for an SRC component. If an image file (from which you upgrade) contains updates for all components or a number of components, you specify which component to upgrade if you do not want to upgrade all components.

For ease of use, you can manage upgrades for a number of C Series Controllers by copying a complete CD image file to be used for an upgrade to an FTP site in your network. You then upgrade each system by using the files on the FTP site. Alternatively, you can copy the complete CD image to a USB drive and install from there.

To upgrade C Series Controller software:

- Enter the request system upgrade command.
  `
  user@host> request system upgrade url url
  `

  where url is one of the following:

  - ftp://host/path—Path on an FTP site or on the local system
  - usb:—Local USB disk

  For example:

      user@host> request system upgrade url ftp://myserver/SRC PE-3.0.0R1
      Setting up Upgrade Process
      Setting up repositories
      Reading repository metadata in from local files
      Resolving Dependencies
      --> Populating transaction set with selected packages. Please wait.
      ---> Downloading header for python-ldap to pack into transaction set.
      ---> Package python-ldap.i386 0:2.0.6-1 set to be updated
      --> Running transaction check

      Dependencies Resolved

      ============================================================

  `
  Package Arch Version Repository Size
  `

      ============================================================
      Updating:
       python-ldap             i386       2.0.6-1          umc-upgrade       150 k

      Transaction Summary
      ============================================================
      Install      0 Package(s)
      Update       1 Package(s)
      Remove       0 Package(s)
      Total download size: 150 k
      Downloading Packages:
      Running Transaction Test
      Finished Transaction Test
      Transaction Test Succeeded
      Running Transaction

        Updating  : python-ldap                  ######################### [1/1]

      Updated: python-ldap.i386 0:2.0.6-1
      Complete!

  The C Series Controller automatically reboots at the end of the upgrade.

#### Related Topics

- Before You Upgrade the Software on a C Series Controller
- Preparing the Software Images on the FTP Server
- Restoring the Files in a Snapshot
- Overview of Software Management on a C Series Controller

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