After several tries I just found the following solution for Kubuntu Alternate installation, which should work for Ubuntu as well:
- Mount your USB drive - Install and start UNetbootin - Select Distribution "Kubuntu" - Select a "HdMedia" subcategory entry, I used "10.04_HdMedia_x86" - Select your USB drive - OK - Copy "kubuntu-10.04-alternate-amd64.iso" to root folder of the usb drive - USB drive is ready for installation (without problems during installation of a missing CD-ROM drive) -- Alternate 10.04 cannot be installed via USB https://bugs.launchpad.net/bugs/606215 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs