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New Member

Upgrade from CD?

I have all sorts of issues while upgrading from FTP and SCP and was wondering if it is possible to upgrade from the 4235's CD ROM. Doesn't seem like asking to much...."UPGRADE d:\..."

Thanks in advance,


Cisco Employee

Re: Upgrade from CD?

Not supported.

Check to ensure you are using supported FTP servers.

While working through the issues here is a workaround:

1) Create a service account

2) Login as the service account

3) Stick in the CD with the file you want

4) mount /mnt/cdrom

or instead of 3 and 4 you can FTP or SCP the file to the service account's home directory.

5) Back in the CLI go to conf t

6) Accept the sensors's ssh key as a server key: "ssh host-key "

7) Now you access the file through the sensor's own scp server for the upgrade or copy command: scp://service@sensorip//mnt/cdrom/filename

replace service,sensorip, and filename with the appropriate values for your sensor.

or if you FTP'd or SCP'd the file to the service account's home directory then execute:


8) If upgrading from CD then eject the CD before the bootup to prevent booting from the CD