Comment 26 for bug 658865

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jack doherty (jkdoherty) wrote : Re: An attempt to configure apt to install additional packages from the CD failed upon install from USB

This worked!

Yes, just worked one out this weekend.

Ubiquity is a collection of shell scripts. There is a shell script that attempts to add the cdrom to the apt-sources list, and this script crashes and brings down the whole install.

The workaround is to go find that script and delete it.

1. Start the machine in trial mode.
2. Open a terminal
3. $ locate ubiquity | grep apt

That command will show you a directory like /usr/lib/ubiquity/apt or somesuch.

Look around under there for a file that looks like '40cdrom' and remove it. Then click on the 'install ubuntu' icon and away you go.

Wish I had the filesystem in front of me or I'd go find the full path for you.

Good luck!