Insufficient space available on boot device

[SYNTAXERROR]

Hi

I want to update my FAS3070 from 8.0.2P3 to 8.1.3P3 and always get the error below.

Did someone had this error?

software: You can cancel this operation by hitting Ctrl-C in the next 6 seconds.

software: Depending on system load, it may take many minutes

software: to complete this operation. Until it finishes, you will

software: not be able to use the console.

cmd = ngsh -c system image update -node local -package file://localhost/mroot/etc/software/813P3_q_image.tgz -setdefault true

Software update started on node sto001. Updating image2 package: file://localhost/mroot/etc/software/813P3_q_image.tgz current image: image1

Listing package contents.

Untarring package contents.

Invoking script (validation phase).

INSTALL running in check only mode

Mode of operation is UPDATE

Current image is image1

Alternate image is image2

Available space on boot device is 256 MB

Required  space on boot device is 265 MB

ERROR: Insufficient space available on device.

Install Failed.

Install Validation Failed. ERROR: Insufficient space available on device.

ERROR: command failed: Install Failed. Install Validation Failed. ERROR:

       Insufficient space available on device.

sw_10m_update: cmd_status=255

sw_ioru: sw_10m_update()=255

software: installation of 813P3_q_image.tgz was not successful.

Thu Jan  9 17:43:04 CET [cmds.software.installNotDone:info]: Software: Installation of 813P3_q_image.tgz failed.

Regards and thanks

Dario