Do you by chance have multiple CD-ROM drives?
If so, try putting the Dapper 3 there and continue. We may be experiencing the same issue as reported in https://launchpad.net/distros/ubuntu/+bug/30456
Igor, I had this issue with some ide cd roms with twisted drive orders, and with serial-ata hard drives. Can you please try again changing drive order on your machine's bios setup? And a recent dapper, of course.
I am closing this bug since there has been no response for over 5 months. If you still have this problem with the latest Dapper, or Edgy beta, please reopen this bug. Thank you.
Do you by chance have multiple CD-ROM drives? /launchpad. net/distros/ ubuntu/ +bug/30456
If so, try putting the Dapper 3 there and continue. We may be experiencing the same issue as reported in https:/