Thank You for your quick answer. I´ve closed this bug.
** Changed in: ubiquity (Ubuntu)
Status: Incomplete => Invalid
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Installer crashed
https://bugs.launchpad.net/bugs/576803
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This may have been due to some problem with the cd/dvd-rom reader. I was
unable to get the computer to work after closing the above dialog. The
command line was reporting low level IO errors on /dev/sr0. I tried the
install again from a usb drive and everything went fine.
Ian
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Installer crashe
Thank you for taking the time to report this bug and helping to make
Ubuntu better. Unfortunately we can't start working on it yet, because
your description didn't include enough information.
Please include the information requested at
https://wiki.ubuntu.com/DebuggingUbiquity/AttachingLogs as sep