Restoring the Rescue Image

The rescue image resides on the wireless controller‘s hard disk in a separate partition called the rescue partition; the running software image is stored in the normal mode partition.

You can restore the rescue partition in the rare event that it becomes unavailable or corrupted (for example, because of a hardware disk hardware error or a power failure during upgrade). To restore the rescue partition, you must obtain a healthy rescue image and install it on the wireless controller.

A healthy rescue image is available from one of the following locations:

• The normal mode partition. A locally saved rescue image is delivered as part of the upgrade image and saved on the normal mode partition during the upgrade process.
• The Extreme Networks repository site. On the Extreme Networks repository site, one rescue image exists for each controller platform. The following table lists the file extension associated with each of the controller platforms. The file extension for the rescue image begins with the letter r to identify the file as a rescue image.

Rescue Image File Naming Conventions

Wireless Appliance Model	Rescue File Extension
C5110	.rtxe
C5210	.rrue
C4110	.rgxe
C25	.rpfe
C35	.rcwe
V2110 (VmWare platform)	.rbge
V2110 (MS Hyper-V platform)	.rize

Note

Use the restore procedure in an emergency only when the rescue partition is not accessible. Restore commands are available in the CLI to administrators only; these commands are not listed when you enter the help command.

To restore the rescue image:

1. Log into the CLI as administrator from the console or by using SSH.
2. List the locally saved rescue images by entering the command:

   EWC.extremenetworks.com# show restore-rescue
   1: rescue.rrue

   If a rescue image exists, go to step 3; if no rescue images exist, skip to step 5.

3. To restore the rescue partition using the locally saved rescue image, enter the command: restore-rescue local imagefilename

   For example, to restore from the locally saved rescue image, rescue.rrue, enter the command:

   EWC.extremenetworks.com# restore-rescue local rescue.rrue

4. To restore the rescue partition from any repository site:
   1. Download the appropriate rescue image to the locally accessible FTP server. Make sure that the rescue image you download matches the main image (platform and version). Rescue Image File Naming Conventions lists the platforms and the corresponding rescue image file extensions.
   2. Download the rescue image from the FTP server and install it into the controller by entering the following command:
      restore-rescue ftp serverip | user | password | dir | imagefilename

      For example, to download the rescue image for the model C5210 controller from the FTP site and, as the user admin with the password abc123, install the rescue image, AC-MV-09.01.01.0183-1.rrue, into the store directory, enter the following command:

      EWC.extremenetworks.com# restore-rescue ftp 1.1.1.1 admin abc123 store/ AC-MV-09.01.01.0183-1.rrue