Comment 3 for bug 986686

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Andreas Altaïr Redmer (altair-ibn-la-ahad) wrote :

This has nothing to do with a USB stick. It is because of the content of the CD/DVD/USB.

the bug is in the update-notifier data/apt-cdrom-check script
* it works with the DVD
* it works with ubuntu-11.10-alternate-amd64.iso
* it doesn't wok with ubuntu-11.10-desktop-amd64.iso

that is because the script returns 0 because there is no ./cdromupgrade file and not ./ubuntu directory on the normal ubutnu disk.

Of course the script is easy to fix, to return another value on such a CD, but I think without a ./cdromupgrade file, an upgrade from CD/USB stick is not possible.

I think this cannot be fixed? Or current Ubuntu CDs have these files? Maybe one of the developers can give advice.