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I have a persistant live-USB with an almost empty casper-rw part. And I know the persistant part works because when I open firefox, it opens the tabs from my last session. But each time I reboot, I have to reselect my wifi and to re-enter my wifi password. So my question is: How can I save my wifi settings on a persistant live-usb?

I only have a casper-rw but not a home-rw that is mentioned in this answer (or at least it doesn't show up in the file explorer). Is this the reason? If yes, how can I create this home-rw without reinstalling Ubuntu from scratch

It is an Ubuntu 20.04 live usb

MagTun
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  • Home-rw is completely optional, Is your casper-rw a file or partition? What version of Ubuntu are you using? 20.04 uses a persistent file named "writable" instead of "casper-rw" but a partition named "casper-rw" should still work. To be safe change the persistent partition label to "writable". What tool did you use to make your drive? the link you posted is old and things have changed with persistence. – C.S.Cameron Apr 27 '21 at 02:02
  • @C.S.Cameron, thanks for your help, but the next time I rebooted everything was saved including the wifi settings. I don't understand what happened because I didn't change any settings but at least it's working now. – MagTun Apr 28 '21 at 18:38

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The next time I rebooted everything was saved including the wifi settings. I don't understand what happened because I didn't change any settings but at least it's working now.

MagTun
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    The first boot of a persistent flash drive just populates the casper-rw, (writable), partition with folders needed to hold the persistent data, The folders are named "upper" and "work". Further boots of the drive are persistent. Glad it is now working for you. Thank you for letting us know it worked. +1 – C.S.Cameron Apr 29 '21 at 03:25