Delete Wifi Credentials from Raspbian cloned image

[glamis]

I have a custom Raspbian image (based on Raspbian lite + some additional software installs) and I would like to clone this image and distribute it as part of an opensource project. How can I delete the WiFi credentials or other sensitive information from the cloned image. I know that I can always delete the credentials before cloning but I would like to automate the process so would rather not modify the image on the sd card.

[pi-anazazi]

Code: Select all

sudo nano /etc/hostapd/hostapd.conf

?

[glamis]

Code: Select all

sudo nano /etc/hostapd/hostapd.conf

?

I don't think I can do that.
The cloned file is in .img format so how can I access its contents?

[procount]

Search for loop mounting image files. Also lookup losetup and kpartx.

[pi-anazazi]

You can mount the .img into a directory and manipulate the file system as you want. It's Linux, not M$

[bassamanator]

I have a custom Raspbian image (based on Raspbian lite + some additional software installs) and I would like to clone this image and distribute it as part of an opensource project. How can I delete the WiFi credentials or other sensitive information from the cloned image. I know that I can always delete the credentials before cloning but I would like to automate the process so would rather not modify the image on the sd card.

There's a stick at the top of this section of the forum, viewtopic.php?f=63&t=231762

It'll explain how to mount an image for editing.