root terminal cannot open input file

[Clawinus]

My wireless Broadcom 4311 stopped working. I have reinstalled all BCM  and ndswrapper drivers.
no solution.
Now I am trying to extract the firmware with b43-fwcutter from the root terminal.
This is the result:

Example: b43-fwcutter -w /lib/firmware wl_apsta.o
         to extract the firmware blobs from wl_apsta.o and store
         the resulting firmware in /lib/firmware
[root@localhost helmut]# b43-fwcutter -w /lib/firmware wl_apsta.o
Cannot open input file wl_apsta.o

How can I open the file?

[pags]

Looking at the help from the tool:

[jpaglia@paglia-e6500 ~]$ b43-fwcutter --help
b43-fwcutter version 012

A tool to extract firmware for a Broadcom 43xx device
from a proprietary Broadcom 43xx device driver file.

Usage: b43-fwcutter [OPTION] [proprietary-driver-file]
  --unsupported         Allow working on extractable but unsupported drivers
  -l|--list             List supported driver versions
  -i|--identify         Only identify the driver file (don't extract)
  -w|--target-dir DIR   Extract and write firmware to DIR
  -v|--version          Print b43-fwcutter version
  -h|--help             Print this help

Example: b43-fwcutter -w /lib/firmware wl_apsta.o
         to extract the firmware blobs from wl_apsta.o and store
         the resulting firmware in /lib/firmware
[jpaglia@paglia-e6500 ~]$

Do you have the file wl_apsta.o?
If so, based on your syntax, it should be in your working (current) directory.  Is it?

[Clawinus]

A search with Dolphin everywhere returned:
no items found

[ElCuervo]

You could also try  cabextract to extract the driver. It always worked well for me back in the days when I needed it.

[AS]

From the description of bcm43xx-fwcutter package:

Tool to extract firmware for Broadcom 43xx network cards
Fwcutter allows you to extract the firmware required for Broadcom 43xx chips
out of the .sys files commonly available with the card or on the internet.

Once extracted, place all .fw files into /lib/firmware.

 

AS