SOLVED - Can't save report back to server (via TFPT)

[Wakolipo]

Hi everyone,

I'm new to ShredOS and I'm trying to get the following configuration working. The ShredOS bzImage is hosted on a Linux Server (Ubuntu) which also acts as a DHCP server. I would like to connect several 'erasers' (old PCs with disks to be wiped) to a local network via a simple switch. These erasers should load ShredOS via TFTP and then push the certificate.pdf back to the server.

Since the PCs are quite old, they only support legacy PXE. My current directory structure is:

TFTP base folder: /srv/tftp/

PXE config file: /srv/tftp/pxelinux.cfg/default

ShredOS files: /srv/tftp/boot/

Currently, the erasers boot successfully, load the ShredOS image, and start the process. However, I am having trouble with the PDF saving feature.
When I interrupt the process with a CTRL+C, I expect a .pdf file (containing either the report or error logs) to be saved back to the server. I created a folder at /srv/tftp/PDF/, but I haven't been able to get the upload to work yet.

Here the content of my default file:

DEFAULT menu.c32
PROMPT 0
TIMEOUT 50

MENU TITLE Menu di Avvio PXE (Legacy) - HP 6200 Pro

LABEL shredos
    MENU LABEL Avvia ShredOS (Monolithic)
    KERNEL /boot/bzImage
    APPEND console=tty3 loglevel=3 network ip=dhcp shredos_output="tftp:192.168.1.241:PDF::no password:d"

I copied the shredos_output parameter from a previous post which reports almost the same hardware configuration. Below a picture of the error screen I get every time.
Should I expect the erasing process to end? No PDF file or report is even created if the process is interrupted with CRTL+C.
Any advice would be useful.
Thanks in advance.
Paolo

[PartialVolume]

Control C will abort nwipe without it producing any pdfs.

When the wipes complete, I believe it says press the spacebar or return key. Doing so, should then allow nwipe to generate the pdf's and exit.

[Wakolipo]

I got a solution modifying the configuration file /etc/default/tftpd-hpa adding the --create option to the following line:

TFTP_OPTIONS=" --create --secure"